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CN110676865A - Control method of power supply with high-efficiency wide-input energy bidirectional flow - Google Patents

Control method of power supply with high-efficiency wide-input energy bidirectional flow Download PDF

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CN110676865A
CN110676865A CN201910925418.6A CN201910925418A CN110676865A CN 110676865 A CN110676865 A CN 110676865A CN 201910925418 A CN201910925418 A CN 201910925418A CN 110676865 A CN110676865 A CN 110676865A
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bidirectional
voltage
switch tube
module
contactor
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邓永红
张全柱
孙英娟
马红梅
雷旻
薛伟宁
赵立永
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North China Institute of Science and Technology
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for AC mains or AC distribution networks
    • H02J3/28Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of DC power input into DC power output
    • H02M3/22Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H02M3/33584Bidirectional converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/66Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal
    • H02M7/68Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters
    • H02M7/72Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/79Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/797Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

本发明涉及电源技术领域,公开了一种高效宽输入能量双向流动的供电电源的控制方法,当该电源向负载或者电网提供能量时,控制双向直流/直流变流器、第一双向H桥变流器、高频变压器模块、和第二双向H桥变流器使储能电池组输出第一直流电压给双向直流/交流模块,控制双向直流/交流模块将第一直流电压转换成第一交流电压;当该电源存储能量时,控制双向直流/交流模块将负载或者电网提供的第二交流电压转换成第二直流电压,控制双向直流/直流变流器和第二双向H桥变流器将第二直流电压输出给储能电池组。本发明能适应和调节不同规格输入的电源以及能量的双向流动。

Figure 201910925418

The invention relates to the technical field of power supplies, and discloses a control method of a power supply with high efficiency and wide input energy bidirectionally flowing. The converter, the high-frequency transformer module, and the second bidirectional H-bridge converter make the energy storage battery pack output the first DC voltage to the bidirectional DC/AC module, and control the bidirectional DC/AC module to convert the first DC voltage into the first AC voltage; when the power supply stores energy, the bidirectional DC/AC module is controlled to convert the second AC voltage provided by the load or the grid into a second DC voltage, and the bidirectional DC/DC converter and the second bidirectional H-bridge converter are controlled to convert the The second DC voltage is output to the energy storage battery pack. The present invention can adapt and adjust the input power supply of different specifications and the bidirectional flow of energy.

Figure 201910925418

Description

高效宽输入能量双向流动的供电电源的控制方法Control method of power supply with high efficiency and wide input energy bidirectional flow

技术领域technical field

本发明涉及电源技术领域,尤其涉及一种高效宽输入能量双向流动的供电电源的控制方法。The invention relates to the technical field of power supplies, in particular to a control method of a power supply with high efficiency and wide input energy bidirectional flow.

背景技术Background technique

随着全球经济的不断发展和世界人口的不断增长,人类越来越离不开电能。可现在随着科技的快速发展,太阳能光伏发电、风电发电的充分利用、再生能量、电网或者其它供电电源结合各种储能电池电能的充分利用等等,使人类面对许许多多的供电问题:(1)电能需求的不断增长,而随着传统的化石能源煤、石油、天然气的不断消耗,且它们具有不可再生性,它们已不可能满足我们所有的供电需求;(2)随着太阳能光伏发电以及风电发电的普及,再生能量的充分利用,但发出的电能和再生能量以及其它电源的能量不会及时利用完,也不是所有的这类电能,都能及时回馈电网,同时由于在不同地区这种电能利用类型不同、电压等级不同,也是急需要充分利用。外加上工业应用过程中产生的再生能量、城市轨道交通过程产生的再生能量、风电发电以及其它途径产生的能量和储能电池的能量等等,也都面临这样的问题;(3)随着整个社会节能意识的提高,将生活中和各种生产中,尤其各种工业生产中产生的电能,包含各种太阳能光伏和风电发电以及其它发电,不能及时回馈电网的能量,全部存储到各种储能电池中,这些储能电池中存储的能量,也是急需解决它们的充分利用问题;(4)在无供电电网地区人类的活动日益增加(野外探险、旅游等等),也要满足他们的一些日常用电需求,也是需要储能电池供电;(5)随着城市化进程的加快、智能家居的加速发展、智慧城市的迅速发展,以及电动汽车的普及,一方面急需一种便捷快速的充供电方式满足供电需求,另外电动汽车也是可以作为电能的一种运载工具,可以充分利用电动汽车电池里面的电能。要充分利用这些电能,或者要充分利用各种储能电池里面的电能,面临一个最关键的问题是:目前市场上各种光伏和风电发电以及储能电池电源的供电范围非常宽(直流100-1200V(volt,伏特)),而工业应用中需要的是交流400V/660V/1140V的三相交流电或其它等级的直流电压,我们有必要设计发明一种能适应宽输入范围的供电电源来满足这些需求,从而尽快占领这些市场,以获得高的经济效益。同时进一步能实现能量的双向传动,把工业用负载中或者城市轨道交通中等产生的再生能量充分利用起来。With the continuous development of the global economy and the continuous growth of the world population, human beings are increasingly inseparable from electricity. But now with the rapid development of science and technology, the full utilization of solar photovoltaic power generation, wind power generation, renewable energy, grid or other power supply combined with the full utilization of various energy storage batteries, etc., make mankind face many power supply problems. : (1) The demand for electricity continues to grow, and with the continuous consumption of traditional fossil energy coal, oil, and natural gas, and they are non-renewable, it is impossible for them to meet all our power supply needs; (2) With the continuous consumption of solar energy The popularity of photovoltaic power generation and wind power generation, and the full use of regenerative energy, but the generated electric energy, regenerative energy and energy from other power sources will not be used up in time, and not all such electric energy can be fed back to the grid in time. Different types of electric energy utilization and different voltage levels in different regions are also in urgent need of full utilization. In addition to the regenerative energy generated in the process of industrial application, the regenerative energy generated by the urban rail transit process, the energy generated by wind power generation and other ways, and the energy of energy storage batteries, etc., they also face such problems; (3) With the whole process of With the improvement of social awareness of energy conservation, the electric energy generated in daily life and various production, especially various industrial production, including various solar photovoltaic and wind power generation and other power generation, can not be fed back to the grid in time, and all energy is stored in various storage facilities. In energy storage batteries, the energy stored in these energy storage batteries is also an urgent need to solve the problem of their full utilization; (4) In areas without power grids, human activities are increasing (field exploration, tourism, etc.), and some of their needs must be met. Daily electricity demand also requires energy storage battery power supply; (5) With the acceleration of urbanization, the accelerated development of smart homes, the rapid development of smart cities, and the popularization of electric vehicles, on the one hand, there is an urgent need for a convenient and fast charging The power supply method meets the power supply demand. In addition, electric vehicles can also be used as a vehicle for electric energy, which can make full use of the electric energy in the battery of electric vehicles. To make full use of these electric energy, or to make full use of the electric energy in various energy storage batteries, one of the most critical problems is: the power supply range of various photovoltaic and wind power generation and energy storage battery power sources on the market is very wide (DC 100- 1200V (volt, volt)), and industrial applications need three-phase AC of 400V/660V/1140V or other levels of DC voltage, it is necessary to design and invent a power supply that can adapt to a wide input range to meet these requirements. demand, so as to occupy these markets as soon as possible to obtain high economic benefits. At the same time, it can further realize the two-way transmission of energy, and make full use of the regenerative energy generated in industrial loads or urban rail transit.

而现在的供电电源存在的最主要问题是:将储能电池的电压等级为直流100-1200V分成两种供电电源规格,如图1和图2所示,即直流100-600V和直流600-1200V两种输入电压规格等级。The main problem of the current power supply is that the voltage level of the energy storage battery is DC 100-1200V into two power supply specifications, as shown in Figure 1 and Figure 2, namely DC 100-600V and DC 600-1200V Two input voltage specification levels.

1、对于直流100-600V输入的供电电源,设计一个升压斩波电路,将输入的直流100-600V电源升压并稳定到直流600V,提供给逆变器,输出直接负载给工频变压器,间接负载为电机,开关电源等;1. For the DC 100-600V input power supply, design a boost chopper circuit to boost and stabilize the input DC 100-600V power supply to DC 600V, supply it to the inverter, and output the direct load to the power frequency transformer, Indirect loads are motors, switching power supplies, etc.;

2、对于直流600-1200V输入的供电电源,设计降压斩波电路,将输入的直流600-1200V电源降压并稳定到直流600V,提供逆变器,输出直接负载给工频变压器,间接负载为电机,开关电源等;2. For the DC 600-1200V input power supply, design a step-down chopper circuit to step down and stabilize the input DC 600-1200V power supply to DC 600V, provide an inverter, and output the direct load to the power frequency transformer, and the indirect load For motors, switching power supplies, etc.;

3、由于供电电源输出侧直接负载为工频变压器,间接负载为电机,开关电源等,相对于供电电源容量为10kVA(千伏特*安培)时,要满足间接负载中电动机的启动电流需求,对于直流600V输入时,最大电流为36A(安培),这样对于最低直流100V输入时候,如图1储能电池及升压斩波电路的最大电流高达220A以上,对于一般的升压斩波电路难以实现;3. Since the direct load on the output side of the power supply is a power frequency transformer, and the indirect load is a motor, switching power supply, etc., when the capacity of the power supply is 10kVA (kilovolt*ampere), the starting current requirements of the motor in the indirect load must be met. When inputting DC 600V, the maximum current is 36A (Ampere), so for the lowest input DC 100V, as shown in Figure 1, the maximum current of the energy storage battery and boost chopper circuit is as high as 220A or more, which is difficult to achieve for general boost chopper circuits. ;

4、上述两种供电电源都不能实现能量的双向流动,不能将负载中的再生能量存储到电池组中,不仅浪费能源,还需要外接能耗电阻将这些再生能量消耗到,增加电源的不稳定性。4. Neither of the above two power supplies can realize the bidirectional flow of energy, and cannot store the regenerative energy in the load into the battery pack, which not only wastes energy, but also requires an external energy consumption resistor to consume these regenerative energy, increasing the instability of the power supply. sex.

发明内容SUMMARY OF THE INVENTION

针对上述现有技术中存在的不足,本发明提供了一种高效宽输入能量双向流动的供电电源的控制方法,可解决现有技术中供电电源电源不能适应宽输入电源以及不能实现能量的双向传动的技术问题。In view of the above-mentioned deficiencies in the prior art, the present invention provides a control method for a power supply with high efficiency and wide input energy bidirectional flow, which can solve the problem that the power supply in the prior art cannot adapt to the wide input power supply and cannot realize the bidirectional transmission of energy. technical issues.

本发明提供了一种高效宽输入能量双向流动的供电电源的控制方法,该方法用于控制供电电源,该电源包括:储能电池组、直流断路器、电磁干扰滤波器、双向直流/直流变流器、第一双向H桥变流器、高频变压器模块、第二双向H桥变流器、双向直流/交流模块、正弦波滤波器、隔离并网变压器、第一控制系统和第二控制系统;The invention provides a control method for a power supply with high efficiency and wide input energy bidirectional flow. The method is used to control the power supply, and the power supply includes: an energy storage battery pack, a DC circuit breaker, an electromagnetic interference filter, a two-way DC/DC converter converter, first bidirectional H-bridge converter, high frequency transformer module, second bidirectional H-bridge converter, bidirectional DC/AC module, sine wave filter, isolation grid-connected transformer, first control system and second control system;

所述储能电池组的正负极两端通过所述直流断路器与所述电磁干扰滤波器连接,所述电磁干扰滤波器与所述双向直流/直流变流器连接,所述双向直流/直流变流器与所述第一双向H桥变流器连接,所述第一双向H桥变流器通过所述高频变压器模块与所述第二双向H桥变流器连接,所述第二双向H桥变流器与所述双向直流/交流模块连接,所述双向直流/交流模块与所述正弦波滤波器连接,所述正弦波滤波器与负载连接,或者通过所述隔离并网变压器与负载或者电网连接,所述第一控制系统与直流断路器、所述双向直流/直流变流器、第一双向H桥变流器、所述第二双向H桥变流器和高频变压器模块连接,所述第二控制系统与所述双向直流/交流模块连接,所述第一控制系统和所述第二控制系统连接;The positive and negative ends of the energy storage battery pack are connected to the electromagnetic interference filter through the DC circuit breaker, the electromagnetic interference filter is connected to the bidirectional DC/DC converter, and the bidirectional DC/DC converter is connected. The DC converter is connected to the first bidirectional H-bridge converter, the first bidirectional H-bridge converter is connected to the second bidirectional H-bridge converter through the high-frequency transformer module, and the first bidirectional H-bridge converter is Two bidirectional H-bridge converters are connected to the bidirectional DC/AC module, the bidirectional DC/AC module is connected to the sine wave filter, the sine wave filter is connected to the load, or is connected to the grid through the isolation The transformer is connected to the load or the grid, and the first control system is connected to the DC circuit breaker, the bidirectional DC/DC converter, the first bidirectional H-bridge converter, the second bidirectional H-bridge converter and the high-frequency a transformer module is connected, the second control system is connected with the bidirectional DC/AC module, and the first control system is connected with the second control system;

该方法包括:当该电源向负载或者电网提供能量时,控制所述双向直流/直流变流器、所述第一双向H桥变流器、所述高频变压器模块、和所述第二双向H桥变流器使所述储能电池组输出第一直流电压给所述双向直流/交流模块,控制所述双向直流/交流模块将所述第一直流电压转换成第一交流电压;The method includes: controlling the bidirectional DC/DC converter, the first bidirectional H-bridge converter, the high frequency transformer module, and the second bidirectional converter when the power supply provides energy to a load or grid The H-bridge converter enables the energy storage battery pack to output a first DC voltage to the bidirectional DC/AC module, and controls the bidirectional DC/AC module to convert the first DC voltage into a first AC voltage;

当该电源存储能量时,控制所述双向直流/交流模块将负载或者电网提供的第二交流电压转换成第二直流电压,控制所述双向直流/直流变流器和所述第二双向H桥变流器将所述第二直流电压输出给所述储能电池组。When the power source stores energy, the bidirectional DC/AC module is controlled to convert the second AC voltage provided by the load or the grid into a second DC voltage, and the bidirectional DC/DC converter and the second bidirectional H-bridge are controlled The converter outputs the second DC voltage to the energy storage battery pack.

可选的,所述电磁干扰滤波器和所述双向直流/直流变流器之间并联有第一电容器;所述双向直流/直流变流器的上输出端和所述第一双向H桥变流器的上输入端之间串联有第一电感器和第二电感器,所述双向直流/直流变流器和所述第一双向H桥变流器之间并联有第二电容器,且所述第二电容器的一端连接在所述第一电感器和所述第二电感器之间;所述第二双向H桥变流器的上输出端和所述双向直流/交流模块之间串联有第三电感器,所述第二双向H桥变流器的上输出端和所述双向直流/交流模块之间并联有第三电容器,且第三电容器的一端连接在第三电感器和所述双向直流/交流模块之间。Optionally, a first capacitor is connected in parallel between the electromagnetic interference filter and the bidirectional DC/DC converter; the upper output end of the bidirectional DC/DC converter and the first bidirectional H-bridge converter are connected in parallel. A first inductor and a second inductor are connected in series between the upper input ends of the converter, a second capacitor is connected in parallel between the bidirectional DC/DC converter and the first bidirectional H-bridge converter, and the One end of the second capacitor is connected between the first inductor and the second inductor; an upper output end of the second bidirectional H-bridge converter and the bidirectional DC/AC module are connected in series with a third inductor, a third capacitor is connected in parallel between the upper output end of the second bidirectional H-bridge converter and the bidirectional DC/AC module, and one end of the third capacitor is connected between the third inductor and the between bidirectional DC/AC modules.

可选的,所述双向直流/直流变流器包括第一开关管和第二开关管,所述第一开关管的集电极与所述第一电容器的正极连接,其发射极与下开关管的集电极连接,所述第二开关管的发射极与所述第一电容器的负极连接,所述第一电感器的一端连接在所述第一开关管和所述第二开关管之间,所述第一电感器的另一端与所述第二电感器和所述第二电容器连接。Optionally, the bidirectional DC/DC converter includes a first switch tube and a second switch tube, the collector of the first switch tube is connected to the positive pole of the first capacitor, and the emitter is connected to the lower switch tube. The collector of the second switch tube is connected to the cathode of the first capacitor, and one end of the first inductor is connected between the first switch tube and the second switch tube, The other end of the first inductor is connected to the second inductor and the second capacitor.

可选的,所述第一双向H桥变流器包括第三开关管、第四开关管、第五开关管和第六开关管,所述第三开关管和所述第五开关管的集电极均与所述第二电感器连接,其发射极分别与所述第四开关管和所述第六开关管的集电极连接,所述第四开关管和所述第六开关管的发射极均与所述第二电容器的负极连接,所述第二电容器的正极连接在所述第一电感器和所述第二电感器之间。Optionally, the first bidirectional H-bridge converter includes a third switch, a fourth switch, a fifth switch, and a sixth switch, and the third switch and the fifth switch are a set of The electrodes are all connected to the second inductor, and the emitters thereof are respectively connected to the collectors of the fourth switch tube and the sixth switch tube, and the emitters of the fourth switch tube and the sixth switch tube are respectively connected Both are connected to the negative pole of the second capacitor, and the positive pole of the second capacitor is connected between the first inductor and the second inductor.

可选的,所述高频变压器模块包括第一绕组、第二绕组、第三绕组、第一接触器、第二接触器和第三接触器,所述高频变压器模块的原边有所述第一绕组,其副边有所述第二绕组和所述第三绕组,所述第二绕组的一端与所述第一接触器的一端和所述第二接触器的一端连接,其另一端与所述第三接触器的一端连接,所述第三绕组的一端与所述第一接触器的另一端和所述第三接触器的另一端连接,其另一端与所述第二接触器的另一端连接,所述第二绕组的另一端和所述第三绕组的另一端均与所述第二双向H桥变流器连接;当所述第一接触器闭合,所述第二接触器和所述第三接触器均断开时,所述第二绕组和所述第三绕组串联,当所述第一接触器断开,所述第二接触器和所述第三接触器均闭合时,所述第二绕组和所述第三绕组并联。Optionally, the high-frequency transformer module includes a first winding, a second winding, a third winding, a first contactor, a second contactor and a third contactor, and the primary side of the high-frequency transformer module has the The first winding has the second winding and the third winding on the secondary side, one end of the second winding is connected to one end of the first contactor and one end of the second contactor, and the other end connected to one end of the third contactor, one end of the third winding is connected to the other end of the first contactor and the other end of the third contactor, and the other end of the third winding is connected to the second contactor The other end of the second winding and the other end of the third winding are both connected to the second bidirectional H-bridge converter; when the first contactor is closed, the second contact When both the contactor and the third contactor are disconnected, the second winding and the third winding are connected in series, and when the first contactor is disconnected, the second contactor and the third contactor are both disconnected When closed, the second winding and the third winding are connected in parallel.

可选的,所述第二双向H桥变流器包括第七开关管、第八开关管、第九开关管和第十开关管,所述第七开关管和所述第九开关管的集电极均与所述第三电感器连接,其发射极分别与所述第八开关管和所述第十开关管的集电极连接,所述第八开关管和所述第十开关管的发射极均与所述第三电容器的负极连接,所述第三电容器的正极与所述第三电感器连接。Optionally, the second bidirectional H-bridge converter includes a seventh switch, an eighth switch, a ninth switch, and a tenth switch, and the seventh switch and the ninth switch are a set of The electrodes are all connected to the third inductor, and the emitters thereof are respectively connected to the collectors of the eighth switch tube and the tenth switch tube, and the emitters of the eighth switch tube and the tenth switch tube are respectively connected are connected to the negative pole of the third capacitor, and the positive pole of the third capacitor is connected to the third inductor.

可选的,所述第一绕组的一端连接在所述第三开关管和所述第四开关管之间,其另一端连接在所述第五开关管和所述第六开关管之间,所述第二绕组的另一端还连接在所述第七开关管和所述第八开关管之间,所述第三绕组的另一端还连接在所述第九开关管和所述第十开关管之间。Optionally, one end of the first winding is connected between the third switch tube and the fourth switch tube, and the other end is connected between the fifth switch tube and the sixth switch tube, The other end of the second winding is also connected between the seventh switch tube and the eighth switch tube, and the other end of the third winding is also connected to the ninth switch tube and the tenth switch between the tubes.

可选的,所述双向直流/交流模块包括第十一开关管、第十二开关管、第十三开关管、第十四开关管、第十五开关管和第十六开关管,所述第十一开关管、所述第十三开关管和所述第十五开关管的集电极均与所述第三电感器和所述第三电容器的正极连接,其发射极分别与所述第十四开关管、所述第十六开关管和所述第十二开关管的集电极连接,所述第十四开关管、所述第十六开关管和所述第十二开关管的发射极均与所述第三电容器的负极连接。Optionally, the bidirectional DC/AC module includes an eleventh switch tube, a twelfth switch tube, a thirteenth switch tube, a fourteenth switch tube, a fifteenth switch tube, and a sixteenth switch tube. The collectors of the eleventh switch tube, the thirteenth switch tube and the fifteenth switch tube are all connected to the positive poles of the third inductor and the third capacitor, and the emitters thereof are respectively connected to the positive poles of the third inductor and the third capacitor. Collectors of the fourteenth switch tube, the sixteenth switch tube and the twelfth switch tube are connected, and the emission of the fourteenth switch tube, the sixteenth switch tube and the twelfth switch tube The poles are all connected to the negative pole of the third capacitor.

可选的,所述正弦波滤波器包括第四电感器、第五电感器、第六电感器、第四电容器、第五电容器和第六电容器,所述第四电感器的一端、所述第五开关管的一端以及所述第六开关管的一端分别连接在所述第十一开关管和所述第十四开关管之间、所述第十三开关管和所述第十六开关管之间以及所述第十五开关管和所述第十二开关管之间,所述第四电感器的另一端、所述第五电感器的另一端以及所述第六电感器的另一端分别与所述第四电容器的一端、所述第五电容器的一端以及所述第六电容器的一端连接,所述第四电容器的另一端、所述第五电容器的另一端以及所述第六电容器的另一端均连接在一起,所述第四电感器的另一端、所述第五电感器的另一端以及所述第六电感器的另一端还分别与所述隔离并网变压器的各输入端连接以及通过第二交流开关与负载连接,所述隔离并网变压器的各输出端通过第一交流开关与负载或者电网连接。Optionally, the sine wave filter includes a fourth inductor, a fifth inductor, a sixth inductor, a fourth capacitor, a fifth capacitor, and a sixth capacitor, and one end of the fourth inductor, the first One end of the fifth switch tube and one end of the sixth switch tube are respectively connected between the eleventh switch tube and the fourteenth switch tube, the thirteenth switch tube and the sixteenth switch tube between the fifteenth switch tube and the twelfth switch tube, the other end of the fourth inductor, the other end of the fifth inductor and the other end of the sixth inductor are respectively connected to one end of the fourth capacitor, one end of the fifth capacitor and one end of the sixth capacitor, the other end of the fourth capacitor, the other end of the fifth capacitor and the sixth capacitor The other end of the fourth inductor, the other end of the fifth inductor, and the other end of the sixth inductor are also connected to the input ends of the isolated grid-connected transformer, respectively. The utility model is connected to and connected to the load through the second AC switch, and each output end of the isolated grid-connected transformer is connected to the load or the grid through the first AC switch.

可选的,当所述储能电池组的电压等级为第一电压区间,且该电源向负载或者电网提供能量时,控制所述双向直流/直流变流器仅具有导通功能,输出第一直流电压;Optionally, when the voltage level of the energy storage battery pack is in the first voltage range, and the power supply provides energy to the load or the power grid, the bidirectional DC/DC converter is controlled to only have a conduction function, and the output first DC voltage;

当所述储能电池组的电压等级为第二电压区间,且该电源向负载或者电网提供能量时,控制所述双向直流/直流变流器为降压斩波模块,将所述储能电池组的第一电压区间稳定在第一稳定直流电压,所述第一直流电压的取值范围包括所述第一稳定直流电压;When the voltage level of the energy storage battery pack is in the second voltage range, and the power supply provides energy to the load or the power grid, the bidirectional DC/DC converter is controlled to be a step-down chopper module, and the energy storage battery The first voltage interval of the group is stabilized at the first stable DC voltage, and the value range of the first DC voltage includes the first stable DC voltage;

所述第一双向H桥变流器将所述第一直流电压或者所述第一稳定直流电压变成高频交流脉冲的第一交流电压并提供给所述高频变压器;The first bidirectional H-bridge converter converts the first DC voltage or the first stable DC voltage into a first AC voltage of a high-frequency AC pulse and provides it to the high-frequency transformer;

当所述第一交流电压的幅值为第一低输入电压时,控制所述第一接触器闭合、所述第二接触器和所述第三接触器断开,将所述第一交流电压的幅值从所述第一低输入电压升压到第一升幅电压;When the amplitude of the first AC voltage is the first low input voltage, the first contactor is controlled to be closed, the second contactor and the third contactor are controlled to be disconnected, and the first AC voltage is The amplitude of is boosted from the first low input voltage to the first boosted voltage;

当所述第一交流电压的幅值为第一高输入电压时,控制所述第二接触器和所述第三接触器闭合、所述第一接触器断开,将所述第一交流电压的幅值从所述第一高输入电压升压到第一升幅电压;When the amplitude of the first AC voltage is the first high input voltage, the second contactor and the third contactor are controlled to be closed, the first contactor is opened, and the first AC voltage is The amplitude of the voltage is boosted from the first high input voltage to the first boosted voltage;

控制所述第二双向H桥变流器为第二快速整流模块,将高频交流脉冲的且幅值为所述第一升幅电压的所述第一交流电压整流成第一直流输出电压,并提供给所述双向直流/交流模块;Controlling the second bidirectional H-bridge converter to be a second fast rectifier module, rectifying the first AC voltage of the high-frequency AC pulse and the amplitude of the first boost voltage into a first DC output voltage, and provided to the bidirectional DC/AC module;

控制所述双向直流/交流模块为逆变模块,将所述第一直流输出电压变频调速后变成第一交流输出电压输出给负载,或者通过所述并网变压器输出给电网或者负载。The bidirectional DC/AC module is controlled to be an inverter module, which converts the first DC output voltage into a first AC output voltage after frequency conversion and speed regulation and outputs it to a load, or to a power grid or a load through the grid-connected transformer.

可选的,当该电源存储能量时,控制所述双向直流/交流模块为交流/直流整流模块,将负载或者电网提供的第二交流输入电压变成第二直流输入电压;Optionally, when the power supply stores energy, the bidirectional DC/AC module is controlled to be an AC/DC rectifier module, and the second AC input voltage provided by the load or the grid becomes the second DC input voltage;

控制所述第二双向H桥变流器将所述第二直流输入电压变成高频交流脉冲的且幅值为第二输入电压的第二交流电压,并提供给所述高频变压器;controlling the second bidirectional H-bridge converter to convert the second DC input voltage into a second AC voltage with a high frequency AC pulse and an amplitude of the second input voltage, and provide the second AC voltage to the high frequency transformer;

控制所述第二接触器和所述第三接触器闭合、所述第一接触器断开,将所述第二交流电压的幅值从所述第二输入电压降压到第二降幅电压;controlling the second contactor and the third contactor to be closed, the first contactor to be disconnected, and the amplitude of the second alternating current voltage to be stepped down from the second input voltage to a second stepped-down voltage;

控制所述第一双向H桥变流器为第一快速整流模块,将高频交流脉冲的且幅值为所述第二降幅电压的所述第二交流电压整流成第二直流电压;controlling the first bidirectional H-bridge converter to be a first fast rectification module, and rectifying the second AC voltage of the high-frequency AC pulse and the amplitude of the second reduced voltage into a second DC voltage;

当检测到所述储能电池组的电压等级为低电压区间时,控制所述双向直流/直流变流器仅具有导通功能,将所述第二直流电压输入到所述储能电池组中;When it is detected that the voltage level of the energy storage battery pack is in the low voltage range, the bidirectional DC/DC converter is controlled to only have a conduction function, and the second DC voltage is input into the energy storage battery pack ;

当检测到所述储能电池组的电压等级为高电压区间时,控制所述双向直流/直流变流器为升压斩波模块,将所述第二直流电压升压后输入到所述储能电池组中。When it is detected that the voltage level of the energy storage battery pack is in the high voltage range, the bidirectional DC/DC converter is controlled to be a boost chopper module, and the second DC voltage is boosted and then input to the storage battery. in the battery pack.

本发明提供的一种高效宽输入能量双向流动的供电电源的控制方法,通过模块化设计可以满足多种应用场合、满足宽输入电压范围,适应各种电压设备、便携式设备,尤其支持太阳能、储能电池组等各种类型用电设备供电的一种多功能供电设备。本发明充分利用太阳能、风能和储能电池组,根据需要调节输入稳定各类输入电压满足不同设备的供电需求,且可以实现变频调速和直接给供电,还可实现回馈电网以及能量的双向流动。发明设计巧妙便携,用途广泛,供电稳定性、模块化结构、可靠性高的特点,满足多种场合需求,其突出特点是能适应和调节不同规格输入的电源以及能量的双向流动,具有很高的市场应用价值。The present invention provides a control method for a power supply with high efficiency and wide input energy bidirectional flow. Through modular design, it can meet various application occasions, meet a wide input voltage range, adapt to various voltage equipment and portable equipment, especially support solar energy, storage A multifunctional power supply device that can supply power to various types of electrical equipment such as battery packs. The invention makes full use of solar energy, wind energy and energy storage battery packs, adjusts and stabilizes various input voltages as required to meet the power supply requirements of different equipment, and can realize frequency conversion speed regulation and direct power supply, as well as feedback to the grid and bidirectional flow of energy. . The invention is ingeniously designed and portable, has a wide range of uses, has the characteristics of power supply stability, modular structure and high reliability, and meets the needs of various occasions. market application value.

附图说明Description of drawings

为了更清楚地说明本发明实施方式或现有技术中的技术方案,下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施方式,对于本领域技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

图1为本发明提供的传统的低电压区间供电电源电源;Fig. 1 is the traditional low-voltage interval power supply power supply provided by the present invention;

图2为本发明提供的传统的高电压区间供电电源电源;Fig. 2 is the traditional high-voltage interval power supply power supply provided by the present invention;

图3为本发明实施方式一提供的高效宽输入能量双向流动的供电电源的结构示意图;3 is a schematic structural diagram of a power supply with high efficiency and wide input energy bidirectional flow according to Embodiment 1 of the present invention;

图4为本发明实施方式二提供的高效宽输入能量双向流动的供电电源的控制方法的提供和存储能量的双向流程图;FIG. 4 is a bidirectional flow chart of providing and storing energy of a control method for a power supply with high efficiency and wide input energy bidirectional flow according to Embodiment 2 of the present invention;

图5为本发明实施方式三提供的高效宽输入能量双向流动的供电电源的提供和存储能量的电路结构图;5 is a circuit structure diagram of providing and storing energy of a power supply with high-efficiency and wide-input energy bidirectional flow according to Embodiment 3 of the present invention;

图6为本发明实施方式四提供的高效宽输入能量双向流动的供电电源的提供能量的电路结构图;Fig. 6 is the circuit structure diagram of the energy supply of the power supply with high efficiency and wide input energy bidirectional flow according to Embodiment 4 of the present invention;

图7为本发明实施方式五提供的高效宽输入能量双向流动的供电电源的存储能量的电路结构图;7 is a circuit structure diagram of the stored energy of a power supply with high efficiency and wide input energy bidirectional flow according to Embodiment 5 of the present invention;

图8为本发明实施方式六提供的高效宽输入能量双向流动的供电电源的控制方法的提供能量的流程图;8 is a flow chart of supplying energy of a control method for a power supply with high-efficiency and wide-input energy bidirectional flow according to Embodiment 6 of the present invention;

图9为本发明实施方式七提供的高效宽输入能量双向流动的供电电源的存储能量的电路结构图;FIG. 9 is a circuit structure diagram of the stored energy of the power supply with high efficiency and wide input energy bidirectional flow according to Embodiment 7 of the present invention;

图10为本发明实施方式八提供的高效宽输入能量双向流动的供电电源的控制方法的提供能量的流程图;10 is a flow chart of supplying energy of a method for controlling a power supply with bidirectional flow of high-efficiency and wide-input energy according to Embodiment 8 of the present invention;

图11为本发明实施方式九提供的高效宽输入能量双向流动的供电电源的控制方法的存储能量的流程图。FIG. 11 is a flow chart of energy storage of a control method for a power supply with bidirectional flow of high-efficiency and wide-input energy according to Embodiment 9 of the present invention.

具体实施方式Detailed ways

为使得本发明的发明目的、特征、优点能够更加的明显和易懂,下面将结合本发明实施方式中的附图,对本发明实施方式中的技术方案进行清楚、完整地描述,显然,所描述的实施方式仅仅是本发明一部分实施方式,而非全部实施方式。基于本发明中的实施方式,本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式,都属于本发明保护的范围。In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the description The embodiments described above are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

请参阅图3至图4,图3为本发明实施方式一提供的高效宽输入能量双向流动的供电电源的控制方法的结构示意图,图4为本发明实施方式二提供的高效宽输入能量双向流动的供电电源的控制方法的提供和存储能量的双向流程图。Please refer to FIG. 3 to FIG. 4 , FIG. 3 is a schematic structural diagram of a control method of a power supply with high efficiency and wide input energy bidirectional flow provided by Embodiment 1 of the present invention, and FIG. 4 is a high efficiency and wide input energy bidirectional flow provided by Embodiment 2 of the present invention. A bidirectional flow chart of the power supply control method for providing and storing energy.

如图3至图4所示,本发明提供了一种高效宽输入能量双向流动的供电电源的控制方法,该电源包括:储能电池组1、直流断路器2、电磁干扰滤波器3、双向直流/直流变流器4、第一双向H桥变流器5、高频变压器模块6、第二双向H桥变流器7、双向直流/交流模块8、正弦波滤波器9、隔离并网变压器10、第一控制系统11和第二控制系统12。As shown in FIG. 3 to FIG. 4 , the present invention provides a control method for a power supply with high efficiency and wide input energy bidirectional flow. The power supply includes: an energy storage battery pack 1, a DC circuit breaker 2, an electromagnetic interference filter 3, a bidirectional DC/DC converter 4, first bidirectional H-bridge converter 5, high frequency transformer module 6, second bidirectional H-bridge converter 7, bidirectional DC/AC module 8, sine wave filter 9, isolated grid connection Transformer 10 , first control system 11 and second control system 12 .

储能电池组1的正负极两端通过直流断路器2与电磁干扰滤波器3连接,电磁干扰滤波器3与双向直流/直流变流器4连接,双向直流/直流变流器4与第一双向H桥变流器5连接,第一双向H桥变流器5通过高频变压器模块6与第二双向H桥变流器7连接,第二双向H桥变流器7与双向直流/交流模块8连接,双向直流/交流模块8与正弦波滤波器9连接,正弦波滤波器9与负载连接,或者通过隔离并网变压器10与负载或者电网连接,第一控制系统11与直流断路器2、双向直流/直流变流器4、第一双向H桥变流器5、第二双向H桥变流器7和高频变压器模块6连接,第二控制系统12与双向直流/交流模块8连接,第一控制系统11和第二控制系统12连接。The positive and negative ends of the energy storage battery pack 1 are connected to the electromagnetic interference filter 3 through the DC circuit breaker 2, the electromagnetic interference filter 3 is connected to the bidirectional DC/DC converter 4, and the bidirectional DC/DC converter 4 is connected to the first A bidirectional H-bridge converter 5 is connected, the first bidirectional H-bridge converter 5 is connected to the second bidirectional H-bridge converter 7 through the high-frequency transformer module 6 , and the second bidirectional H-bridge converter 7 is connected to the bidirectional DC/ The AC module 8 is connected, the bidirectional DC/AC module 8 is connected with the sine wave filter 9, the sine wave filter 9 is connected with the load, or is connected with the load or the grid through the isolation grid-connected transformer 10, and the first control system 11 is connected with the DC circuit breaker 2. The bidirectional DC/DC converter 4, the first bidirectional H-bridge converter 5, the second bidirectional H-bridge converter 7 and the high-frequency transformer module 6 are connected, and the second control system 12 is connected with the bidirectional DC/AC module 8 Connection, the first control system 11 and the second control system 12 are connected.

其中,第一控制系统11控制直流断路器2的闭合与断开,控制高频变压器模块6中的接触器的闭合与断开,通过PWM(Pulse Width Modulation,脉冲宽度调制)分别控制双向直流/直流变流器4、第一双向H桥变流器5和第二双向H桥变流器7,第二控制系统12控制交流开关,通过SPWM(Sinusoidal Pulse Width Modulation,正弦脉宽调制)控制双向直流/交流模块8,第一控制系统11和第二控制系统12通过控制器局域网总线连接。第一控制系统11通过开关电容电路对双向直流/直流变流器4、第一双向H桥变流器5和第二双向H桥变流器7进行信号采样,第二控制系统12通过开关电容电路对双向直流/交流模块8进行信号采样,从而根据采样信号对双向直流/直流变流器4、第一双向H桥变流器5、第二双向H桥变流器7以及双向直流/交流模块8进行控制。Among them, the first control system 11 controls the closing and opening of the DC circuit breaker 2, controls the closing and opening of the contactors in the high-frequency transformer module 6, and controls the bidirectional DC/ The DC converter 4, the first two-way H-bridge converter 5 and the second two-way H-bridge converter 7, the second control system 12 controls the AC switch, and controls the two-way through SPWM (Sinusoidal Pulse Width Modulation). The DC/AC module 8, the first control system 11 and the second control system 12 are connected through a controller area network bus. The first control system 11 samples the signals of the bidirectional DC/DC converter 4, the first bidirectional H-bridge converter 5 and the second bidirectional H-bridge converter 7 through the switched capacitor circuit, and the second control system 12 uses the switched capacitor circuit to sample signals. The circuit samples the signals of the bidirectional DC/AC module 8, so that the bidirectional DC/DC converter 4, the first bidirectional H-bridge converter 5, the second bidirectional H-bridge converter 7 and the bidirectional DC/AC converter 4 are sampled according to the sampling signal. Module 8 controls.

请参阅图5至图8,图5为本发明实施方式三提供的高效宽输入能量双向流动的供电电源的提供和存储能量的电路结构图,图6为本发明实施方式四提供的高效宽输入能量双向流动的供电电源的提供能量的电路结构图,图7为本发明实施方式五提供的高效宽输入能量双向流动的供电电源的存储能量的电路结构图,图8为本发明实施方式六提供的高效宽输入能量双向流动的供电电源的控制方法的提供能量的流程图。Please refer to FIG. 5 to FIG. 8 , FIG. 5 is a circuit structure diagram of supplying and storing energy of a power supply with high efficiency and wide input energy bidirectional flow according to the third embodiment of the present invention, and FIG. 6 is the high efficiency and wide input provided by the fourth embodiment of the present invention. A circuit structure diagram of a power supply with bidirectional energy flow for providing energy, FIG. 7 is a circuit structure diagram for storing energy of a power supply with high efficiency and wide input energy bidirectional flow provided by Embodiment 5 of the present invention, and FIG. 8 is provided by Embodiment 6 of the present invention. The energy supply flow chart of the control method of the high-efficiency wide-input energy bidirectional flow power supply.

进一步地,电磁干扰滤波器3和双向直流/直流变流器4之间并联有第一电容器C1。双向直流/直流变流器4的上输出端和第一双向H桥变流器5的上输入端之间串联有第一电感器L1和第二电感器L2,双向直流/直流变流器4和第一双向H桥变流器5之间并联有第二电容器C2,且第二电容器C2的一端连接在第一电感器L1和第二电感器L2之间。第二双向H桥变流器7的上输出端和双向直流/交流模块8之间串联有第三电感器L3,第二双向H桥变流器7的上输出端和双向直流/交流模块8之间并联有第三电容器C3,且第三电容器C3的一端连接在第三电感器L3和双向直流/交流模块8之间。Further, a first capacitor C1 is connected in parallel between the electromagnetic interference filter 3 and the bidirectional DC/DC converter 4 . A first inductor L1 and a second inductor L2 are connected in series between the upper output end of the bidirectional DC/DC converter 4 and the upper input end of the first bidirectional H-bridge converter 5, and the bidirectional DC/DC converter 4 A second capacitor C2 is connected in parallel with the first bidirectional H-bridge converter 5, and one end of the second capacitor C2 is connected between the first inductor L1 and the second inductor L2. A third inductor L3 is connected in series between the upper output end of the second bidirectional H-bridge converter 7 and the bidirectional DC/AC module 8 , and the upper output end of the second bidirectional H-bridge converter 7 and the bidirectional DC/AC module 8 A third capacitor C3 is connected in parallel therebetween, and one end of the third capacitor C3 is connected between the third inductor L3 and the bidirectional DC/AC module 8 .

进一步地,双向直流/直流变流器4包括第一开关管VT1和第二开关管VT2,第一开关管VT1的集电极与第一电容器C1的正极连接,其发射极与下开关管的集电极连接,第二开关管VT2的发射极与第一电容器C1的负极连接,第一电感器L1的一端连接在第一开关管VT1和第二开关管VT2之间,第一电感器L1的另一端与第二电感器L2和第二电容器C2连接。Further, the bidirectional DC/DC converter 4 includes a first switch tube VT1 and a second switch tube VT2, the collector of the first switch tube VT1 is connected to the positive pole of the first capacitor C1, and its emitter is connected to the collector of the lower switch tube. The electrodes are connected, the emitter of the second switch VT2 is connected to the negative electrode of the first capacitor C1, one end of the first inductor L1 is connected between the first switch VT1 and the second switch VT2, and the other end of the first inductor L1 One end is connected to the second inductor L2 and the second capacitor C2.

进一步地,第一双向H桥变流器5包括第三开关管VT3、第四开关管VT4、第五开关管VT5和第六开关管VT6,第三开关管VT3和第五开关管VT5的集电极均与第二电感器L2连接,其发射极分别与第四开关管VT4和第六开关管VT6的集电极连接,第四开关管VT4和第六开关管VT6的发射极均与第二电容器C2的负极连接,第二电容器C2的正极连接在第一电感器L1和第二电感器L2之间。Further, the first bidirectional H-bridge converter 5 includes a third switch VT3, a fourth switch VT4, a fifth switch VT5 and a sixth switch VT6, and a set of the third switch VT3 and the fifth switch VT5. The electrodes are all connected to the second inductor L2, and the emitters are respectively connected to the collectors of the fourth switch VT4 and the sixth switch VT6, and the emitters of the fourth switch VT4 and the sixth switch VT6 are connected to the second capacitor. The negative electrode of C2 is connected, and the positive electrode of the second capacitor C2 is connected between the first inductor L1 and the second inductor L2.

进一步地,高频变压器模块6包括第一绕组N1、第二绕组N2、第三绕组N3、第一接触器KM1、第二接触器KM2和第三接触器KM3,高频变压器模块6的原边有第一绕组N1,其副边有第二绕组N2和第三绕组N3,第二绕组N2的一端与第一接触器KM1的一端和第二接触器KM2的一端连接,其另一端与第三接触器KM3的一端连接,第三绕组N3的一端与第一接触器KM1的另一端和第三接触器KM3的另一端连接,其另一端与第二接触器KM2的另一端连接,第二绕组N2的另一端和第三绕组N3的另一端均与第二双向H桥变流器7连接。当第一接触器KM1闭合,第二接触器KM2和第三接触器KM3均断开时,第二绕组N2和第三绕组N3串联,当第一接触器KM1断开,第二接触器KM2和第三接触器KM3均闭合时,第二绕组N2和第三绕组N3并联。Further, the high-frequency transformer module 6 includes a first winding N1, a second winding N2, a third winding N3, a first contactor KM1, a second contactor KM2 and a third contactor KM3, and the primary side of the high-frequency transformer module 6 There is a first winding N1, and its secondary side has a second winding N2 and a third winding N3. One end of the second winding N2 is connected to one end of the first contactor KM1 and one end of the second contactor KM2, and the other end is connected to the third contactor KM2. One end of the contactor KM3 is connected, one end of the third winding N3 is connected with the other end of the first contactor KM1 and the other end of the third contactor KM3, the other end is connected with the other end of the second contactor KM2, the second winding The other end of N2 and the other end of the third winding N3 are both connected to the second bidirectional H-bridge converter 7 . When the first contactor KM1 is closed, the second contactor KM2 and the third contactor KM3 are both disconnected, the second winding N2 and the third winding N3 are connected in series, when the first contactor KM1 is disconnected, the second contactor KM2 and When both the third contactors KM3 are closed, the second winding N2 and the third winding N3 are connected in parallel.

进一步地,第二双向H桥变流器7包括第七开关管VT7、第八开关管VT8、第九开关管VT9和第十开关管VT10,第七开关管VT7和第九开关管VT9的集电极均与第三电感器L3连接,其发射极分别与第八开关管VT8和第十开关管VT10的集电极连接,第八开关管VT8和第十开关管VT10的发射极均与第三电容器C3的负极连接,第三电容器C3的正极与第三电感器L3连接。Further, the second bidirectional H-bridge converter 7 includes a seventh switch VT7, an eighth switch VT8, a ninth switch VT9 and a tenth switch VT10, and a set of the seventh switch VT7 and the ninth switch VT9. The electrodes are all connected to the third inductor L3, and the emitters are respectively connected to the collectors of the eighth switch tube VT8 and the tenth switch tube VT10, and the emitters of the eighth switch tube VT8 and the tenth switch tube VT10 are connected to the third capacitor. The negative electrode of C3 is connected, and the positive electrode of the third capacitor C3 is connected to the third inductor L3.

进一步地,第一绕组N1的一端连接在第三开关管VT3和第四开关管VT4之间,其另一端连接在第五开关管VT5和第六开关管VT6之间,第二绕组N2的另一端还连接在第七开关管VT7和第八开关管VT8之间,第三绕组N3的另一端还连接在第九开关管VT9和第十开关管VT10之间。Further, one end of the first winding N1 is connected between the third switch tube VT3 and the fourth switch tube VT4, the other end is connected between the fifth switch tube VT5 and the sixth switch tube VT6, and the other end of the second winding N2 is connected. One end is also connected between the seventh switch VT7 and the eighth switch VT8, and the other end of the third winding N3 is also connected between the ninth switch VT9 and the tenth switch VT10.

进一步地,双向直流/交流模块8包括第十一开关管VT11、第十二开关管VT12、第十三开关管VT13、第十四开关管VT14、第十五开关管VT15和第十六开关管VT16,第十一开关管VT11、第十三开关管VT13和第十五开关管VT15的集电极均与第三电感器L3和第三电容器C3的正极连接,其发射极分别与第十四开关管VT14、第十六开关管VT16和第十二开关管VT12的集电极连接,第十四开关管VT14、第十六开关管VT16和第十二开关管VT12的发射极均与第三电容器C3的负极连接。Further, the bidirectional DC/AC module 8 includes an eleventh switch VT11, a twelfth switch VT12, a thirteenth switch VT13, a fourteenth switch VT14, a fifteenth switch VT15 and a sixteenth switch. VT16, the collectors of the eleventh switch tube VT11, the thirteenth switch tube VT13 and the fifteenth switch tube VT15 are all connected to the positive poles of the third inductor L3 and the third capacitor C3, and their emitters are respectively connected to the fourteenth switch tube. The collectors of the tube VT14, the sixteenth switch tube VT16 and the twelfth switch tube VT12 are connected, and the emitters of the fourteenth switch tube VT14, the sixteenth switch tube VT16 and the twelfth switch tube VT12 are all connected to the third capacitor C3 negative connection.

进一步地,正弦波滤波器9包括第四电感器L4、第五电感器L5、第六电感器L6、第四电容器C4、第五电容器C5和第六电容器C6,第四电感器L4的一端、第五开关管VT5的一端以及第六开关管VT6的一端分别连接在第十一开关管VT11和第十四开关管VT14之间、第十三开关管VT13和第十六开关管VT16之间以及第十五开关管VT15和第十二开关管VT12之间,第四电感器L4的另一端、第五电感器L5的另一端以及第六电感器L6的另一端分别与第四电容器C4的一端、第五电容器C5的一端以及第六电容器C6的一端连接,第四电容器C4的另一端、第五电容器C5的另一端以及第六电容器C6的另一端均连接在一起,第四电感器L4的另一端、第五电感器L5的另一端以及第六电感器L6的另一端还分别与隔离并网变压器10的各输入端连接以及通过第二交流开关14与负载连接,隔离并网变压器10的各输出端通过第一交流开关13与负载或者电网连接。Further, the sine wave filter 9 includes a fourth inductor L4, a fifth inductor L5, a sixth inductor L6, a fourth capacitor C4, a fifth capacitor C5 and a sixth capacitor C6, one end of the fourth inductor L4, One end of the fifth switch tube VT5 and one end of the sixth switch tube VT6 are respectively connected between the eleventh switch tube VT11 and the fourteenth switch tube VT14, between the thirteenth switch tube VT13 and the sixteenth switch tube VT16, and Between the fifteenth switch VT15 and the twelfth switch VT12, the other end of the fourth inductor L4, the other end of the fifth inductor L5 and the other end of the sixth inductor L6 are respectively connected with one end of the fourth capacitor C4 , one end of the fifth capacitor C5 and one end of the sixth capacitor C6 are connected, the other end of the fourth capacitor C4, the other end of the fifth capacitor C5 and the other end of the sixth capacitor C6 are all connected together, the fourth inductor L4 The other end, the other end of the fifth inductor L5 and the other end of the sixth inductor L6 are also respectively connected to the input ends of the isolation grid-connected transformer 10 and to the load through the second AC switch 14, so that the Each output terminal is connected to the load or the power grid through the first AC switch 13 .

请参阅图8至图11,图8为本发明实施方式二提供的高效宽输入能量双向流动的供电电源的控制方法的提供和存储能量的双向流程图,图9为本发明实施方式七提供的高效宽输入能量双向流动的供电电源的存储能量的电路结构图,图10为本发明实施方式八提供的高效宽输入能量双向流动的供电电源的控制方法的提供能量的流程图,图11为本发明实施方式九提供的高效宽输入能量双向流动的供电电源的控制方法的存储能量的流程图。Please refer to FIG. 8 to FIG. 11 , FIG. 8 is a bidirectional flow chart of supplying and storing energy of a control method for a power supply with high efficiency and wide input energy bidirectional flow according to Embodiment 2 of the present invention, and FIG. 9 is Embodiment 7 of the present invention. A circuit structure diagram of energy storage of a power supply with bidirectional flow of high-efficiency and wide input energy, FIG. 10 is a flow chart of energy supply of a control method of a power supply with bidirectional flow of high-efficiency and wide input energy provided in Embodiment 8 of the present invention, and FIG. 11 is The ninth embodiment of the invention provides a flow chart of stored energy of a control method for a power supply with high efficiency and wide input energy bidirectional flow.

进一步地,当该电源向负载或者电网提供能量时,第一控制系统11控制双向直流/直流变流器4、第一双向H桥变流器5、高频变压器模块6、和第二双向H桥变流器7使储能电池组1输出第一直流电压给双向直流/交流模块8,第二控制系统12控制双向直流/交流模块8将第一直流电压转换成第一交流电压。Further, when the power supply provides energy to the load or the grid, the first control system 11 controls the bidirectional DC/DC converter 4, the first bidirectional H-bridge converter 5, the high frequency transformer module 6, and the second bidirectional H The bridge converter 7 enables the energy storage battery pack 1 to output the first DC voltage to the bidirectional DC/AC module 8, and the second control system 12 controls the bidirectional DC/AC module 8 to convert the first DC voltage into the first AC voltage.

当该电源存储能量时,第二控制系统12控制双向直流/交流模块8将负载或者电网提供的第二交流电压转换成第二直流电压,第一控制系统11控制双向直流/直流变流器4和第二双向H桥变流器7将第二直流电压输出给储能电池组1。When the power source stores energy, the second control system 12 controls the bidirectional DC/AC module 8 to convert the second AC voltage provided by the load or the grid into the second DC voltage, and the first control system 11 controls the bidirectional DC/DC converter 4 And the second bidirectional H-bridge converter 7 outputs the second DC voltage to the energy storage battery pack 1 .

进一步地,当储能电池组1的电压等级为第一电压区间,且该电源向负载或者电网提供能量时,第一控制系统11控制双向直流/直流变流器4仅具有导通功能,输出第一直流电压。Further, when the voltage level of the energy storage battery pack 1 is in the first voltage range, and the power supply provides energy to the load or the power grid, the first control system 11 controls the bidirectional DC/DC converter 4 to only have the conduction function, and the output first DC voltage.

当储能电池组1的电压等级为第二电压区间,且该电源向负载或者电网提供能量时,第一控制系统11控制双向直流/直流变流器4为降压斩波模块,将储能电池组1的第一电压区间稳定在第一稳定直流电压,第一直流电压的取值范围包括第一稳定直流电压。When the voltage level of the energy storage battery pack 1 is in the second voltage range, and the power supply provides energy to the load or the power grid, the first control system 11 controls the bidirectional DC/DC converter 4 to be a step-down chopper module to convert the energy storage The first voltage range of the battery pack 1 is stable at the first stable DC voltage, and the value range of the first DC voltage includes the first stable DC voltage.

第一双向H桥变流器5将第一直流电压或者第一稳定直流电压变成高频交流脉冲的第一交流电压并提供给高频变压器模块6。The first bidirectional H-bridge converter 5 converts the first DC voltage or the first stable DC voltage into the first AC voltage of the high-frequency AC pulse and provides the first AC voltage to the high-frequency transformer module 6 .

当第一交流电压的幅值为第一低输入电压时,第一控制系统11控制第一接触器KM1闭合、第二接触器KM2和第三接触器KM3断开,将第一交流电压的幅值从第一低输入电压升压到第一升幅电压。When the amplitude of the first AC voltage is the first low input voltage, the first control system 11 controls the first contactor KM1 to be closed, the second contactor KM2 and the third contactor KM3 to be disconnected, and the amplitude of the first AC voltage is The value is boosted from the first low input voltage to the first boosted voltage.

当第一交流电压的幅值为第一高输入电压时,第一控制系统11控制第二接触器KM2和第三接触器KM3闭合、第一接触器KM1断开,将第一交流电压的幅值从第一高输入电压升压到第一升幅电压。When the amplitude of the first AC voltage is the first high input voltage, the first control system 11 controls the second contactor KM2 and the third contactor KM3 to close, the first contactor KM1 to open, and the amplitude of the first AC voltage is The value is boosted from the first high input voltage to the first boosted voltage.

第一控制系统11控制第二双向H桥变流器7为第二快速整流模块,将高频交流脉冲的且幅值为第一升幅电压的第一交流电压整流成第一直流输出电压,并提供给双向直流/交流模块8。The first control system 11 controls the second bidirectional H-bridge converter 7 to be a second fast rectifier module, and rectifies the first AC voltage of the high-frequency AC pulse and the amplitude of the first boost voltage into a first DC output voltage, and supplied to the bidirectional DC/AC module 8.

第二控制系统12控制双向直流/交流模块8为逆变模块,将第一直流输出电压变频调速后变成第一交流输出电压输出给负载,或者通过隔离并网变压器10输出给电网或者负载。The second control system 12 controls the bidirectional DC/AC module 8 to be an inverter module, which converts the first DC output voltage into the first AC output voltage after frequency conversion and speed regulation and outputs it to the load, or outputs it to the power grid through the isolated grid-connected transformer 10 or load.

进一步地,当该电源存储能量时,第二控制系统12控制双向直流/交流模块8为交流/直流整流模块,将负载或者电网提供的第二交流输入电压变成第二直流输入电压。Further, when the power supply stores energy, the second control system 12 controls the bidirectional DC/AC module 8 to be an AC/DC rectifier module to convert the second AC input voltage provided by the load or the grid into the second DC input voltage.

第一控制系统11控制第二双向H桥变流器7将第二直流输入电压变成高频交流脉冲的且幅值为第二输入电压的第二交流电压,并提供给高频变压器模块6。The first control system 11 controls the second bidirectional H-bridge converter 7 to convert the second DC input voltage into a second AC voltage with a high frequency AC pulse and an amplitude of the second input voltage, and provides it to the high frequency transformer module 6 .

第一控制系统11控制第二接触器KM2和第三接触器KM3闭合、第一接触器KM1断开,将第二交流电压的幅值从第二输入电压降压到第二降幅电压。The first control system 11 controls the second contactor KM2 and the third contactor KM3 to close and the first contactor KM1 to open, so as to step down the amplitude of the second AC voltage from the second input voltage to the second reduced amplitude voltage.

第一控制系统11控制第一双向H桥变流器5为第一快速整流模块,将高频交流脉冲的且幅值为第二降幅电压的第二交流电压整流成第二直流电压。The first control system 11 controls the first bidirectional H-bridge converter 5 to be a first fast rectifier module to rectify the second AC voltage of the high frequency AC pulse and the amplitude of the second reduced voltage into a second DC voltage.

当检测到储能电池组1的电压等级为低电压区间时,第一控制系统11控制双向直流/直流变流器4仅具有导通功能,将第二直流电压输入到储能电池组1中。When it is detected that the voltage level of the energy storage battery pack 1 is in the low voltage range, the first control system 11 controls the bidirectional DC/DC converter 4 to only have a conduction function, and inputs the second DC voltage into the energy storage battery pack 1 .

当检测到储能电池组1的电压等级为高电压区间时,第一控制系统11控制双向直流/直流变流器4为升压斩波模块,将第二直流电压升压后输入到储能电池组1中。When it is detected that the voltage level of the energy storage battery pack 1 is in the high voltage range, the first control system 11 controls the bidirectional DC/DC converter 4 to be a boost chopper module, and the second DC voltage is boosted and then input to the energy storage in battery pack 1.

对于传统供电电源所存在的一些弊端,本发明提出一种行之有效的解决方法,并拓宽其功能。本发明提供了一种集电力电子技术、智能控制于一身的宽输入双向供电电源控制方法,设计巧妙,控制有效,智能化程度高,既能适应宽输入供电电源,还能实现能量的双向流动,使用安全节能环保等优点。For some drawbacks existing in the traditional power supply, the present invention proposes an effective solution and broadens its functions. The invention provides a wide-input two-way power supply control method integrating power electronic technology and intelligent control, which is ingenious in design, effective in control and high in intelligence, which can not only adapt to the wide-input power supply, but also realize the two-way flow of energy. , the use of safety, energy saving and environmental protection advantages.

本发明的显著特点是本供电电源可实现宽输入和能量的双向流动,通过控制算法可以实现不同规格储能电池组1能量的充分利用,能量的双向流动,具有快速、安全、节能环保等优点,其结构如图3所示。即各种规格储能电池组1←→直流断路器2←→电磁干扰滤波器3←→双向直流/直流变流器4←→第一双向H桥变流器5←→高频变压器模块6←→第二双向H桥变流器7←→双向直流/交流模块8←→正弦波滤波器9←→负载或电网。其构成原理如下:The distinctive feature of the present invention is that the power supply can realize wide input and two-way flow of energy, and through the control algorithm, it can realize full utilization of energy of different specifications of energy storage battery packs 1, and two-way flow of energy, which has the advantages of fast, safe, energy saving and environmental protection. , and its structure is shown in Figure 3. That is, energy storage battery packs of various specifications 1←→DC circuit breaker 2←→EMI filter 3←→bidirectional DC/DC converter 4←→first bidirectional H-bridge converter 5←→high frequency transformer module 6 ←→Second bidirectional H-bridge converter 7←→Bidirectional DC/AC module 8←→Sine wave filter 9←→Load or grid. Its composition principle is as follows:

如图3所示,高效宽输入能量双向流动的供电电源由12个部分组成,各种规格的储能电池组1,直流断路器2,电磁干扰滤波器3,双向直流/直流变流器4,第一双向H桥变流器5,高频变压器模块6,第二双向H桥变流器7,双向直流/交流模块8,正弦波滤波器9,隔离并网变压器10,第一控制系统11和第二控制系统12等,本系统能实现宽输入供电和能量的双向流动。As shown in Figure 3, the power supply with high efficiency and wide input energy bidirectional flow consists of 12 parts, various specifications of energy storage battery pack 1, DC circuit breaker 2, electromagnetic interference filter 3, bidirectional DC/DC converter 4 , the first bidirectional H-bridge converter 5, the high-frequency transformer module 6, the second bidirectional H-bridge converter 7, the bidirectional DC/AC module 8, the sine wave filter 9, the isolation grid-connected transformer 10, the first control system 11 and the second control system 12, etc., this system can realize wide input power supply and bidirectional flow of energy.

图5所示为高效宽输入能量双向流动的供电电源的控制方法的拓扑电路图,拓扑电路中各个部分的功能如下:Figure 5 shows the topology circuit diagram of the control method of the power supply with high efficiency and wide input energy bidirectional flow. The functions of each part in the topology circuit are as follows:

(1)双向直流/直流变流器4主要功能是:导通。提供能量时作为降压斩波,存储能量时作为升压斩波,将储能电池组1的直流100-1200V的电压分别稳定在直流100-150V和直流200-300V输出,或者给储能电池组1充电。(1) The main function of the bidirectional DC/DC converter 4 is: conduction. When supplying energy, it acts as a step-down chopper, and when storing energy, it acts as a booster chopper to stabilize the DC 100-1200V voltage of the energy storage battery pack 1 at DC 100-150V and DC 200-300V respectively. Group 1 charging.

(2)第一双向H桥变流器5和第二双向H桥变流器7主要提供能量时,分别作为第一H桥逆变器和第二快速整流模块,在存储能量时,分别作为第一快速整流模块和第二H桥逆变器,与高频变压器模块6协调控制,输出合适稳定的直流电压值。(2) When the first bidirectional H-bridge converter 5 and the second bidirectional H-bridge converter 7 mainly provide energy, they are respectively used as the first H-bridge inverter and the second fast rectifier module, and when storing energy, they are respectively used as the first H-bridge inverter and the second fast rectifier module. The first fast rectifier module and the second H-bridge inverter are coordinated and controlled with the high-frequency transformer module 6 to output a suitable and stable DC voltage value.

(3)高频变压器模块6的主要功能是隔离和将输入的交流脉冲电压升压或降压。高频变压器模块6原边有一组绕组,副边有两组绕组,其绕组N1:N2和N1:N3的变比都是1:3。第一接触器KM1闭合,同时第二接触器KM2和第三接触器KM3断开时,副边两绕组N2和N3串联,原边绕组和副边绕组的变比为1:6。第二接触器KM2和第三接触器KM3闭合,同时第一接触器KM1断开时,副边两绕组并联,此时原边绕组和副边绕组的变比为1:3。(3) The main function of the high-frequency transformer module 6 is to isolate and step up or step down the input AC pulse voltage. The high-frequency transformer module 6 has one set of windings on the primary side and two sets of windings on the secondary side, and the transformation ratios of the windings N1:N2 and N1:N3 are both 1:3. When the first contactor KM1 is closed and the second contactor KM2 and the third contactor KM3 are disconnected, the two secondary windings N2 and N3 are connected in series, and the transformation ratio of the primary winding and the secondary winding is 1:6. When the second contactor KM2 and the third contactor KM3 are closed, and the first contactor KM1 is disconnected at the same time, the two secondary windings are connected in parallel, and the transformation ratio of the primary winding and the secondary winding is 1:3.

(4)双向直流/交流模块8主要功能作为逆变模块和整流模块。(4) The bidirectional DC/AC module 8 mainly functions as an inverter module and a rectifier module.

如图5所示,第一控制系统11控制直流断路器2的开通关闭,控制双向直流/直流变流器4,第一双向H桥变流器5和第二双向H桥变流器7,控制第一接触器KM1、第二接触器KM2和第三接触器KM3的吸合和断开,检测电源的各种状态。第二控制系统12控制双向直流/交流模块8,控制第一交流开关13和第二交流开关14的开通关闭,检测电源的各种状态。两控制系统以控制器局域网总线通讯,交换数据,协调控制。As shown in FIG. 5 , the first control system 11 controls the opening and closing of the DC circuit breaker 2, controls the bidirectional DC/DC converter 4, the first bidirectional H-bridge converter 5 and the second bidirectional H-bridge converter 7, Control the pull-in and disconnection of the first contactor KM1, the second contactor KM2 and the third contactor KM3, and detect various states of the power supply. The second control system 12 controls the bidirectional DC/AC module 8, controls the opening and closing of the first AC switch 13 and the second AC switch 14, and detects various states of the power supply. The two control systems communicate with the controller area network bus, exchange data, and coordinate control.

如图6所示,当供电电源向负载或者电网提供能量的时,第一控制系统11检测储能电池组1的电压等级,控制双向直流/直流变流器4和第一双向H桥变流器5,输出稳定的直流电压600V提供给双向直流/交流模块8,能够适应波动范围较大的输入电源,适应直流100-1200V范围内的储能电池组1。第二控制系统12控制第一交流开关13和第二交流开关14,控制双向直流/交流模块8逆变运行,输出变频调速的电压,或者输出三相交流400V/50Hz的交流电提供给负载。图7所示,当供电电源存储能量时,第二控制系统12控制第一交流开关13和第二交流开关14,控制双向直流/交流模块8为可控整流,输出稳定的直流电压600V-750V,第一控制系统11检测储能电池组1的电压等级,控制第二双向H桥变流器7,和第二控制系统12交换数据协调运行,能快速给储能电池组1充电,供电电源无需外加能耗电阻单元,提高了供电电源的控制性能、安全性能和可靠性以及提高了功率因素,实现给所有规格的储能电池组1充电。As shown in FIG. 6 , when the power supply provides energy to the load or the power grid, the first control system 11 detects the voltage level of the energy storage battery pack 1 and controls the bidirectional DC/DC converter 4 and the first bidirectional H-bridge to convert the current. The device 5 outputs a stable DC voltage of 600V and provides it to the bidirectional DC/AC module 8, which can adapt to the input power supply with a large fluctuation range, and is suitable for the energy storage battery pack 1 in the range of DC 100-1200V. The second control system 12 controls the first AC switch 13 and the second AC switch 14, controls the bidirectional DC/AC module 8 to operate in reverse, outputs a voltage for variable frequency speed regulation, or outputs three-phase AC 400V/50Hz AC power to supply the load. As shown in FIG. 7, when the power supply stores energy, the second control system 12 controls the first AC switch 13 and the second AC switch 14, controls the bidirectional DC/AC module 8 to be controlled rectifier, and outputs a stable DC voltage of 600V-750V , the first control system 11 detects the voltage level of the energy storage battery pack 1, controls the second bidirectional H-bridge converter 7, and exchanges data with the second control system 12 for coordinated operation, which can quickly charge the energy storage battery pack 1 and supply power There is no need to add an energy consumption resistance unit, the control performance, safety performance and reliability of the power supply are improved, and the power factor is improved, and the energy storage battery pack 1 of all specifications can be charged.

图8所示,在供电电源向负载或者电网提供能量时:As shown in Figure 8, when the power supply provides energy to the load or grid:

(1)当储能电池组1电压等级在直流100-150V和直流200-300V范围内时,双向直流/直流变流器4仅仅作为导通功能,输出直流100-150V和直流200-300V的直流电压。当储能电池组1电压等级在直流300-1200V和直流150-200V时,控制双向直流/直流变流器4为降压斩波模块,采用电压闭环的PID恒压限流控制算法,将储能电池组1直流300-1200V的电压稳定在直流300V,直流150-200V的电压稳定在直流150V。(1) When the voltage level of the energy storage battery pack 1 is in the range of DC 100-150V and DC 200-300V, the bidirectional DC/DC converter 4 only acts as a conduction function, and outputs DC 100-150V and DC 200-300V DC voltage. When the voltage level of the energy storage battery pack 1 is DC 300-1200V and DC 150-200V, the bidirectional DC/DC converter 4 is controlled to be a step-down chopper module, and the voltage closed-loop PID constant voltage current-limiting control algorithm is used to convert the storage battery. The voltage of the battery pack 1 DC 300-1200V is stable at DC 300V, and the voltage of DC 150-200V is stable at DC 150V.

(2)第一双向H桥变流器5将输入的直流100-150V和直流200-300V电压变成幅值为直流100-150V和直流200-300V高频的交流脉冲电压,提供给高频变压器模块6。(2) The first bidirectional H-bridge converter 5 converts the input DC 100-150V and DC 200-300V voltages into high-frequency AC pulse voltages with amplitudes of DC 100-150V and DC 200-300V, and provides the high-frequency Transformer Module 6.

(3)当输入电压为直流100-150V时,第一接触器KM1闭合,同时第二接触器KM2和第三接触器KM3断开,高频变压器模块6将幅值为直流100-150V的高频交流脉冲电压,升压到幅值为直流600V-900V的高频交流脉冲电压。当输入电压为直流200-300V时,第二接触器KM2和第三接触器KM3闭合,同时KM1断开,高频变压器模块6将幅值为直流200-300V的高频交流脉冲电压,升压到幅值为直流600V-900V的高频交流脉冲电压。(3) When the input voltage is DC 100-150V, the first contactor KM1 is closed, while the second contactor KM2 and the third contactor KM3 are disconnected, and the high-frequency transformer module 6 converts a The high-frequency AC pulse voltage is boosted to a high-frequency AC pulse voltage with an amplitude of DC 600V-900V. When the input voltage is DC 200-300V, the second contactor KM2 and the third contactor KM3 are closed, while KM1 is disconnected, and the high-frequency transformer module 6 will boost the high-frequency AC pulse voltage with an amplitude of DC 200-300V. To the high-frequency AC pulse voltage with the amplitude of DC 600V-900V.

(4)第二双向H桥变流器7此时仅仅作为第二快速整流模块,将高频变压器模块6输出的高频脉冲电压整流成直流电压。第一双向H桥变流器5采取移相脉冲控制算法,与高频变压器模块6、第一接触器KM1、第二接触器KM2、第三接触器KM3和第二快速整流模块协调运行,再采用电压闭环的PID恒压限流控制算法输出稳定的直流电压600V,提供给双向直流/交流模块8。(4) The second bidirectional H-bridge converter 7 only serves as the second fast rectification module at this time, and rectifies the high-frequency pulse voltage output by the high-frequency transformer module 6 into a DC voltage. The first bidirectional H-bridge converter 5 adopts a phase-shifting pulse control algorithm, and operates in coordination with the high-frequency transformer module 6, the first contactor KM1, the second contactor KM2, the third contactor KM3 and the second fast rectifier module. The PID constant voltage and current limiting control algorithm with voltage closed loop is adopted to output a stable DC voltage of 600V, which is provided to the bidirectional DC/AC module 8 .

(5)控制双向直流/交流模块8为逆变模块,输出变频调速的电压提供给负载,或者输出400V/50Hz的正弦交流电压通过隔离并网变压器10并网或直接提供给负载。(5) The bidirectional DC/AC module 8 is controlled to be an inverter module, and the output voltage of variable frequency speed regulation is supplied to the load, or the output 400V/50Hz sinusoidal AC voltage is connected to the grid through the isolation grid-connected transformer 10 or directly supplied to the load.

如图9所示,在供电电源存储能量时:As shown in Figure 9, when the power supply stores energy:

(1)第二控制系统12控制双向直流/交流模块8为交流/直流整流模块,依据储能电池组1的电压等级,输出直流电压600-直流750V。(1) The second control system 12 controls the bidirectional DC/AC module 8 to be an AC/DC rectifier module, and outputs a DC voltage of 600-DC 750V according to the voltage level of the energy storage battery pack 1 .

(2)第二双向H桥变流器7模块,将输入的稳定的直流直流600-直流750V电压变成幅值为直流600-直流750V的高频交流脉冲电压。(2) The second bidirectional H-bridge converter 7 module converts the input stable DC 600-DC 750V voltage into a high-frequency AC pulse voltage with an amplitude of DC 600-DC 750V.

(3)此时控制第二接触器KM2和第三接触器KM3闭合,同时控制KM1断开,高频变压器模块6将幅值为直流600-直流750V的高频交流脉冲电压降压到幅值为直流200-250V的高频交流脉冲电压。(3) At this time, the second contactor KM2 and the third contactor KM3 are controlled to be closed, and KM1 is controlled to be disconnected at the same time. It is a high-frequency AC pulse voltage of DC 200-250V.

(4)第一双向H桥变流器5此时仅仅作为第一快速整流模块,将高频变压器模块6输出的高频脉冲整流成稳定的直流电压200-250V。(4) The first bidirectional H-bridge converter 5 only serves as the first fast rectifier module at this time, rectifying the high-frequency pulse output by the high-frequency transformer module 6 into a stable DC voltage of 200-250V.

(5)当检测到储能电池组1的电压为直流100-直流200V时,双向直流/直流变流器4仅仅作为导通功能,第二双向H桥变流器7采取移相脉冲控制算法结合电流闭环PID的间歇式变电流限压充电控制算法,与高频变压器模块6和第一快速整流模块协调运行,给储能电池组1充电。当储能电池组1的电压为直流200-直流1200V,第二双向H桥变流器7采用移相脉冲控制算法结合电压闭环的PID恒压限流控制算法,输出稳定的直流电压200-250V提供给双向直流/直流变流器4,此时双向直流/直流变流器4为升压斩波模块,采用电流闭环PID的间歇式变电流限压充电控制算法,给储能电池组1充电。(5) When it is detected that the voltage of the energy storage battery pack 1 is DC 100-DC 200V, the bidirectional DC/DC converter 4 only serves as a conduction function, and the second bidirectional H-bridge converter 7 adopts a phase-shift pulse control algorithm Combined with the intermittent variable current and voltage limiting charging control algorithm of current closed-loop PID, it operates in coordination with the high-frequency transformer module 6 and the first fast rectifier module to charge the energy storage battery pack 1 . When the voltage of the energy storage battery pack 1 is DC 200-DC 1200V, the second bidirectional H-bridge converter 7 adopts the phase-shift pulse control algorithm combined with the voltage closed-loop PID constant-voltage current-limiting control algorithm to output a stable DC voltage of 200-250V Provided to the bidirectional DC/DC converter 4. At this time, the bidirectional DC/DC converter 4 is a boost chopper module, which uses the current closed-loop PID intermittent variable current and voltage limiting charging control algorithm to charge the energy storage battery pack 1. .

只需要改变工频变压器的接线就可以输出交流400V/50Hz、交流660V/50Hz、1140V/50Hz的电压等级的交流电源。It only needs to change the wiring of the power frequency transformer to output AC power with voltage levels of AC 400V/50Hz, AC 660V/50Hz, and 1140V/50Hz.

高效宽输入能量双向流动的供电电源的控制方法第一控制系统11和第二控制系统12根据检测储能电池组1电压等级,各个模块的工作状态、电网和供电负载状态要求等,依据指令启动高效供电运行。两控制系统通过数据交换,合理控制供电电源供电储能,可以有效实现不同的应用工况,适应宽输入范围的电压,尤其是在储能的过程中,快速存储再生能量、其它电源能量或者电网的能量,可以实现快速储能,不会损害供电电源系统,还提高了宽输入能量双向流动的供电电源的寿命。The control method of the power supply with high efficiency and wide input energy bidirectional flow The first control system 11 and the second control system 12 start according to the instructions according to the detection of the voltage level of the energy storage battery pack 1, the working status of each module, the power grid and power supply load status requirements, etc. Efficient power supply operation. Through data exchange, the two control systems can reasonably control the power supply and energy storage, which can effectively realize different application conditions and adapt to a wide input range of voltage, especially in the process of energy storage, quickly store regenerative energy, other power energy or power grid. It can realize fast energy storage without damaging the power supply system, and also improve the life of the power supply with wide input energy bidirectional flow.

本发明的优点是:本发明电路结构简单,造价低廉,控制容易且性价比高,运用电力电子技术、全数字化智能化技术,实现宽输入电源输入和电能的高效利用,能量的双向流动能更加有效的实现供电电源应用的各种特殊工况,实现对再生能量的有效利用,延长了供电电源的使用寿命、使用效率,能适应不同的负载不同应用环境,避免了供电电网的不稳定。储能电池组具有的能量存储功能和瞬间大电流放电功能,避免了能源的浪费,实现节能环保,提高了整个产品的控制性能、应用性能、通用性能和使用安全性能。The advantages of the present invention are: the circuit structure of the present invention is simple, the cost is low, the control is easy and the cost performance is high, and the power electronic technology and the all-digital intelligent technology are used to realize wide input power input and efficient utilization of electric energy, and the bidirectional flow of energy is more effective. It can realize various special working conditions of power supply application, realize the effective use of regenerative energy, prolong the service life and efficiency of power supply, adapt to different loads and different application environments, and avoid the instability of power supply grid. The energy storage function and instantaneous high current discharge function of the energy storage battery pack avoids energy waste, realizes energy saving and environmental protection, and improves the control performance, application performance, general performance and safety performance of the entire product.

在上述实施方式中,对各个实施方式的描述都各有侧重,某个实施方式中没有详述的部分,可以参见其它实施方式的相关描述。以上为对本发明所提供的高效宽输入能量双向流动的供电电源的控制方法的描述,对于本领域的一般技术人员,依据本发明实施方式的思想,在具体实施方式及应用范围上均会有改变之处,综上,本说明书内容不应理解为对本发明的限制。In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. The above is a description of the control method of the high-efficiency and wide-input energy bidirectional flow power supply provided by the present invention. For those skilled in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation and application scope. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (11)

1.一种高效宽输入能量双向流动的供电电源的控制方法,其特征在于,该方法用于控制供电电源,该电源包括:储能电池组(1)、直流断路器(2)、电磁干扰滤波器(3)、双向直流/直流变流器(4)、第一双向H桥变流器(5)、高频变压器模块(6)、第二双向H桥变流器(7)、双向直流/交流模块(8)、正弦波滤波器(9)、隔离并网变压器(10)、第一控制系统(11)和第二控制系统(12);1. a method for controlling a power supply with high efficiency and wide input energy bidirectional flow, characterized in that the method is used to control the power supply, and the power supply comprises: an energy storage battery pack (1), a DC circuit breaker (2), an electromagnetic interference Filter (3), bidirectional DC/DC converter (4), first bidirectional H-bridge converter (5), high frequency transformer module (6), second bidirectional H-bridge converter (7), bidirectional a DC/AC module (8), a sine wave filter (9), an isolation grid-connected transformer (10), a first control system (11) and a second control system (12); 所述储能电池组(1)的正负极两端通过所述直流断路器(2)与所述电磁干扰滤波器(3)连接,所述电磁干扰滤波器(3)与所述双向直流/直流变流器(4)连接,所述双向直流/直流变流器(4)与所述第一双向H桥变流器(5)连接,所述第一双向H桥变流器(5)通过所述高频变压器模块(6)与所述第二双向H桥变流器(7)连接,所述第二双向H桥变流器(7)与所述双向直流/交流模块(8)连接,所述双向直流/交流模块(8)与所述正弦波滤波器(9)连接,所述正弦波滤波器(9)与负载连接,或者通过所述隔离并网变压器(10)与负载或者电网连接,所述第一控制系统(11)与直流断路器(2)、所述双向直流/直流变流器(4)、第一双向H桥变流器(5)、所述第二双向H桥变流器(7)和高频变压器模块(6)连接,所述第二控制系统(12)与所述双向直流/交流模块(8)连接,所述第一控制系统(11)和所述第二控制系统(12)连接;The positive and negative ends of the energy storage battery pack (1) are connected to the electromagnetic interference filter (3) through the DC circuit breaker (2), and the electromagnetic interference filter (3) is connected to the bidirectional DC /DC converter (4) connected, the bidirectional DC/DC converter (4) is connected with the first bidirectional H-bridge converter (5), the first bidirectional H-bridge converter (5) ) is connected to the second bidirectional H-bridge converter (7) through the high-frequency transformer module (6), and the second bidirectional H-bridge converter (7) is connected to the bidirectional DC/AC module (8). ) connection, the bidirectional DC/AC module (8) is connected to the sine wave filter (9), and the sine wave filter (9) is connected to the load, or to the isolated grid-connected transformer (10) to the load. load or grid connection, the first control system (11) is connected to the DC circuit breaker (2), the bidirectional DC/DC converter (4), the first bidirectional H-bridge converter (5), the Two bidirectional H-bridge converters (7) are connected to the high-frequency transformer module (6), the second control system (12) is connected to the bidirectional DC/AC module (8), and the first control system (11) ) is connected to the second control system (12); 该方法包括:当该电源向负载或者电网提供能量时,控制所述双向直流/直流变流器(4)、所述第一双向H桥变流器(5)、所述高频变压器模块(6)、和所述第二双向H桥变流器(7)使所述储能电池组(1)输出第一直流电压给所述双向直流/交流模块(8),控制所述双向直流/交流模块(8)将所述第一直流电压转换成第一交流电压;The method includes: when the power supply provides energy to a load or a power grid, controlling the bidirectional DC/DC converter (4), the first bidirectional H-bridge converter (5), the high-frequency transformer module ( 6) and the second bidirectional H-bridge converter (7) to enable the energy storage battery pack (1) to output a first DC voltage to the bidirectional DC/AC module (8) to control the bidirectional DC/AC module (8). The AC module (8) converts the first DC voltage into a first AC voltage; 当该电源存储能量时,控制所述双向直流/交流模块(8)将负载或者电网提供的第二交流电压转换成第二直流电压,控制所述双向直流/直流变流器(4)和所述第二双向H桥变流器(7)将所述第二直流电压输出给所述储能电池组(1)。When the power supply stores energy, the bidirectional DC/AC module (8) is controlled to convert the second AC voltage provided by the load or the grid into a second DC voltage, and the bidirectional DC/DC converter (4) and the The second bidirectional H-bridge converter (7) outputs the second DC voltage to the energy storage battery pack (1). 2.根据权利要求1所述的方法,其特征在于,所述电磁干扰滤波器(3)和所述双向直流/直流变流器(4)之间并联有第一电容器;所述双向直流/直流变流器(4)的上输出端和所述第一双向H桥变流器(5)的上输入端之间串联有第一电感器和第二电感器,所述双向直流/直流变流器(4)和所述第一双向H桥变流器(5)之间并联有第二电容器,且所述第二电容器的一端连接在所述第一电感器和所述第二电感器之间;所述第二双向H桥变流器(7)的上输出端和所述双向直流/交流模块(8)之间串联有第三电感器,所述第二双向H桥变流器(7)的上输出端和所述双向直流/交流模块(8)之间并联有第三电容器,且第三电容器的一端连接在第三电感器和所述双向直流/交流模块(8)之间。2. The method according to claim 1, wherein a first capacitor is connected in parallel between the electromagnetic interference filter (3) and the bidirectional DC/DC converter (4); the bidirectional DC/DC converter (4) is connected in parallel with a first capacitor; A first inductor and a second inductor are connected in series between the upper output end of the DC converter (4) and the upper input end of the first bidirectional H-bridge converter (5). A second capacitor is connected in parallel between the current transformer (4) and the first bidirectional H-bridge current transformer (5), and one end of the second capacitor is connected to the first inductor and the second inductor A third inductor is connected in series between the upper output end of the second bidirectional H-bridge converter (7) and the bidirectional DC/AC module (8), and the second bidirectional H-bridge converter A third capacitor is connected in parallel between the upper output end of (7) and the bidirectional DC/AC module (8), and one end of the third capacitor is connected between the third inductor and the bidirectional DC/AC module (8). between. 3.根据权利要求2所述的方法,其特征在于,所述双向直流/直流变流器(4)包括第一开关管和第二开关管,所述第一开关管的集电极与所述第一电容器的正极连接,其发射极与下开关管的集电极连接,所述第二开关管的发射极与所述第一电容器的负极连接,所述第一电感器的一端连接在所述第一开关管和所述第二开关管之间,所述第一电感器的另一端与所述第二电感器和所述第二电容器连接。3. The method according to claim 2, wherein the bidirectional DC/DC converter (4) comprises a first switch tube and a second switch tube, and the collector of the first switch tube is connected to the The positive pole of the first capacitor is connected, the emitter is connected to the collector of the lower switch tube, the emitter of the second switch tube is connected to the negative pole of the first capacitor, and one end of the first inductor is connected to the Between the first switch tube and the second switch tube, the other end of the first inductor is connected to the second inductor and the second capacitor. 4.根据权利要求2所述的方法,其特征在于,所述第一双向H桥变流器(5)包括第三开关管、第四开关管、第五开关管和第六开关管,所述第三开关管和所述第五开关管的集电极均与所述第二电感器连接,其发射极分别与所述第四开关管和所述第六开关管的集电极连接,所述第四开关管和所述第六开关管的发射极均与所述第二电容器的负极连接,所述第二电容器的正极连接在所述第一电感器和所述第二电感器之间。4. The method according to claim 2, wherein the first bidirectional H-bridge converter (5) comprises a third switch tube, a fourth switch tube, a fifth switch tube and a sixth switch tube, so The collectors of the third switch tube and the fifth switch tube are both connected to the second inductor, and their emitters are respectively connected to the collectors of the fourth switch tube and the sixth switch tube, and the The emitters of the fourth switch tube and the sixth switch tube are both connected to the negative pole of the second capacitor, and the positive pole of the second capacitor is connected between the first inductor and the second inductor. 5.根据权利要求4所述的方法,其特征在于,所述高频变压器模块(6)包括第一绕组、第二绕组、第三绕组、第一接触器、第二接触器和第三接触器,所述高频变压器模块(6)的原边有所述第一绕组,其副边有所述第二绕组和所述第三绕组,所述第二绕组的一端与所述第一接触器的一端和所述第二接触器的一端连接,其另一端与所述第三接触器的一端连接,所述第三绕组的一端与所述第一接触器的另一端和所述第三接触器的另一端连接,其另一端与所述第二接触器的另一端连接,所述第二绕组的另一端和所述第三绕组的另一端均与所述第二双向H桥变流器(7)连接;当所述第一接触器闭合,所述第二接触器和所述第三接触器均断开时,所述第二绕组和所述第三绕组串联,当所述第一接触器断开,所述第二接触器和所述第三接触器均闭合时,所述第二绕组和所述第三绕组并联。5. The method according to claim 4, wherein the high frequency transformer module (6) comprises a first winding, a second winding, a third winding, a first contactor, a second contactor and a third contact The primary side of the high-frequency transformer module (6) has the first winding, the secondary side has the second winding and the third winding, and one end of the second winding is in contact with the first winding One end of the contactor is connected to one end of the second contactor, the other end is connected to one end of the third contactor, and one end of the third winding is connected to the other end of the first contactor and the third contactor The other end of the contactor is connected to the other end of the second contactor, and the other end of the second winding and the other end of the third winding are both connected to the second bidirectional H bridge. When the first contactor is closed and the second contactor and the third contactor are both disconnected, the second winding and the third winding are connected in series, and when the first contactor and the third contactor are both disconnected When a contactor is opened and both the second contactor and the third contactor are closed, the second winding and the third winding are connected in parallel. 6.根据权利要求5所述的方法,其特征在于,所述第二双向H桥变流器(7)包括第七开关管、第八开关管、第九开关管和第十开关管,所述第七开关管和所述第九开关管的集电极均与所述第三电感器连接,其发射极分别与所述第八开关管和所述第十开关管的集电极连接,所述第八开关管和所述第十开关管的发射极均与所述第三电容器的负极连接,所述第三电容器的正极与所述第三电感器连接。6. The method according to claim 5, wherein the second bidirectional H-bridge converter (7) comprises a seventh switch, an eighth switch, a ninth switch and a tenth switch, and the The collectors of the seventh switch tube and the ninth switch tube are both connected to the third inductor, and their emitters are respectively connected to the collectors of the eighth switch tube and the tenth switch tube, and the The emitters of the eighth switch tube and the tenth switch tube are both connected to the negative pole of the third capacitor, and the positive pole of the third capacitor is connected to the third inductor. 7.根据权利要求6所述的方法,其特征在于,所述第一绕组的一端连接在所述第三开关管和所述第四开关管之间,其另一端连接在所述第五开关管和所述第六开关管之间,所述第二绕组的另一端还连接在所述第七开关管和所述第八开关管之间,所述第三绕组的另一端还连接在所述第九开关管和所述第十开关管之间。7. The method according to claim 6, wherein one end of the first winding is connected between the third switch tube and the fourth switch tube, and the other end of the first winding is connected to the fifth switch The other end of the second winding is also connected between the seventh switch tube and the eighth switch tube, and the other end of the third winding is also connected to the between the ninth switch tube and the tenth switch tube. 8.根据权利要求2所述的方法,其特征在于,所述双向直流/交流模块(8)包括第十一开关管、第十二开关管、第十三开关管、第十四开关管、第十五开关管和第十六开关管,所述第十一开关管、所述第十三开关管和所述第十五开关管的集电极均与所述第三电感器和所述第三电容器的正极连接,其发射极分别与所述第十四开关管、所述第十六开关管和所述第十二开关管的集电极连接,所述第十四开关管、所述第十六开关管和所述第十二开关管的发射极均与所述第三电容器的负极连接。8. The method according to claim 2, wherein the bidirectional DC/AC module (8) comprises an eleventh switch tube, a twelfth switch tube, a thirteenth switch tube, a fourteenth switch tube, The fifteenth switch tube and the sixteenth switch tube, the collectors of the eleventh switch tube, the thirteenth switch tube and the fifteenth switch tube are all connected with the third inductor and the first The positive poles of the three capacitors are connected, and the emitters thereof are respectively connected to the collectors of the fourteenth switch tube, the sixteenth switch tube and the twelfth switch tube, the fourteenth switch tube, the twelfth switch tube The emitters of the sixteen switch tubes and the twelfth switch tubes are both connected to the negative pole of the third capacitor. 9.根据权利要求8所述的方法,其特征在于,所述正弦波滤波器(9)包括第四电感器、第五电感器、第六电感器、第四电容器、第五电容器和第六电容器,所述第四电感器的一端、所述第五开关管的一端以及所述第六开关管的一端分别连接在所述第十一开关管和所述第十四开关管之间、所述第十三开关管和所述第十六开关管之间以及所述第十五开关管和所述第十二开关管之间,所述第四电感器的另一端、所述第五电感器的另一端以及所述第六电感器的另一端分别与所述第四电容器的一端、所述第五电容器的一端以及所述第六电容器的一端连接,所述第四电容器的另一端、所述第五电容器的另一端以及所述第六电容器的另一端均连接在一起,所述第四电感器的另一端、所述第五电感器的另一端以及所述第六电感器的另一端还分别与所述隔离并网变压器(10)的各输入端连接以及通过第二交流开关与负载连接,所述隔离并网变压器(10)的各输出端通过第一交流开关与负载或者电网连接。9. The method of claim 8, wherein the sine wave filter (9) comprises a fourth inductor, a fifth inductor, a sixth inductor, a fourth capacitor, a fifth capacitor and a sixth capacitor, one end of the fourth inductor, one end of the fifth switch tube, and one end of the sixth switch tube are respectively connected between the eleventh switch tube and the fourteenth switch tube, all between the thirteenth switch tube and the sixteenth switch tube and between the fifteenth switch tube and the twelfth switch tube, the other end of the fourth inductor, the fifth inductor The other end of the inductor and the other end of the sixth inductor are respectively connected to one end of the fourth capacitor, one end of the fifth capacitor and one end of the sixth capacitor, and the other end of the fourth capacitor, The other end of the fifth capacitor and the other end of the sixth capacitor are all connected together, and the other end of the fourth inductor, the other end of the fifth inductor, and the other end of the sixth inductor are connected together. One end is also connected to each input end of the isolated grid-connected transformer (10) and connected to the load through the second AC switch, and each output end of the isolated grid-connected transformer (10) is connected to the load or the power grid through the first AC switch connect. 10.根据权利要求1所述的方法,其特征在于,当所述储能电池组(1)的电压等级为第一电压区间,且该电源向负载或者电网提供能量时,控制所述双向直流/直流变流器(4)仅具有导通功能,输出第一直流电压;10. The method according to claim 1, characterized in that, when the voltage level of the energy storage battery pack (1) is in the first voltage range, and the power supply provides energy to a load or a power grid, the bidirectional direct current is controlled / The DC converter (4) only has a conduction function and outputs the first DC voltage; 当所述储能电池组(1)的电压等级为第二电压区间,且该电源向负载或者电网提供能量时,控制所述双向直流/直流变流器(4)为降压斩波模块,将所述储能电池组(1)的第一电压区间稳定在第一稳定直流电压,所述第一直流电压的取值范围包括所述第一稳定直流电压;When the voltage level of the energy storage battery pack (1) is in the second voltage range, and the power supply provides energy to the load or the power grid, the bidirectional DC/DC converter (4) is controlled to be a step-down chopper module, Stabilizing the first voltage interval of the energy storage battery pack (1) to a first stable DC voltage, where the value range of the first DC voltage includes the first stable DC voltage; 所述第一双向H桥变流器(5)将所述第一直流电压或者所述第一稳定直流电压变成高频交流脉冲的第一交流电压并提供给所述高频变压器;The first bidirectional H-bridge converter (5) converts the first DC voltage or the first stable DC voltage into a first AC voltage of a high-frequency AC pulse and provides it to the high-frequency transformer; 当所述第一交流电压的幅值为第一低输入电压时,所述第一控制系统(11)控制所述第一接触器闭合、所述第二接触器和所述第三接触器断开,将所述第一交流电压的幅值从所述第一低输入电压升压到第一升幅电压;When the amplitude of the first AC voltage is the first low input voltage, the first control system (11) controls the first contactor to close, the second contactor and the third contactor to open on, boosting the amplitude of the first AC voltage from the first low input voltage to a first boosted voltage; 当所述第一交流电压的幅值为第一高输入电压时,所述第一控制系统(11)控制所述第二接触器和所述第三接触器闭合、所述第一接触器断开,将所述第一交流电压的幅值从所述第一高输入电压升压到第一升幅电压;When the amplitude of the first AC voltage is the first high input voltage, the first control system (11) controls the second contactor and the third contactor to close, and the first contactor to open on, boosting the amplitude of the first AC voltage from the first high input voltage to a first boosted voltage; 控制所述第二双向H桥变流器(7)为第二快速整流模块,将高频交流脉冲的且幅值为所述第一升幅电压的所述第一交流电压整流成第一直流输出电压,并提供给所述双向直流/交流模块(8);Controlling the second bidirectional H-bridge converter (7) as a second fast rectification module, rectifying the first AC voltage of the high-frequency AC pulse and the amplitude of the first boost voltage into a first DC output voltage, and provide it to the bidirectional DC/AC module (8); 控制所述双向直流/交流模块(8)为逆变模块,将所述第一直流输出电压变频调速后变成第一交流输出电压输出给负载,或者通过所述并网变压器输出给电网或者负载。Controlling the bidirectional DC/AC module (8) as an inverter module, converting the first DC output voltage into a first AC output voltage after frequency conversion and speed regulation, and outputting it to the load, or outputting it to the power grid through the grid-connected transformer or load. 11.根据权利要求1所述的方法,其特征在于,当该电源存储能量时,控制所述双向直流/交流模块(8)为交流/直流整流模块,将负载或者电网提供的第二交流输入电压变成第二直流输入电压;11. The method according to claim 1, characterized in that, when the power supply stores energy, the bidirectional DC/AC module (8) is controlled to be an AC/DC rectifier module, and the second AC input provided by the load or the power grid is input The voltage becomes the second DC input voltage; 控制所述第二双向H桥变流器(7)将所述第二直流输入电压变成高频交流脉冲的且幅值为第二输入电压的第二交流电压,并提供给所述高频变压器;Controlling the second bidirectional H-bridge converter (7) to convert the second DC input voltage into a second AC voltage of a high frequency AC pulse with an amplitude of the second input voltage, and supplying the second AC voltage to the high frequency transformer; 控制所述第二接触器和所述第三接触器闭合、所述第一接触器断开,将所述第二交流电压的幅值从所述第二输入电压降压到第二降幅电压;controlling the second contactor and the third contactor to close and the first contactor to open, and step down the amplitude of the second alternating current voltage from the second input voltage to a second reduced amplitude voltage; 控制所述第一双向H桥变流器(5)为第一快速整流模块,将高频交流脉冲的且幅值为所述第二降幅电压的所述第二交流电压整流成第二直流电压;Controlling the first bidirectional H-bridge converter (5) to be a first fast rectifier module, rectifying the second AC voltage of the high frequency AC pulse and the amplitude of the second amplitude reduction voltage into a second DC voltage ; 当检测到所述储能电池组(1)的电压等级为低电压区间时,控制所述双向直流/直流变流器(4)仅具有导通功能,将所述第二直流电压输入到所述储能电池组(1)中;When it is detected that the voltage level of the energy storage battery pack (1) is in the low voltage range, the bidirectional DC/DC converter (4) is controlled to only have a conduction function, and the second DC voltage is input to all in the energy storage battery pack (1); 当检测到所述储能电池组(1)的电压等级为高电压区间时,控制所述双向直流/直流变流器(4)为升压斩波模块,将所述第二直流电压升压后输入到所述储能电池组(1)中。When it is detected that the voltage level of the energy storage battery pack (1) is in the high voltage range, the bidirectional DC/DC converter (4) is controlled to be a boost chopper module, and the second DC voltage is boosted and then input into the energy storage battery pack (1).
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111572567A (en) * 2020-04-24 2020-08-25 北京北交新能科技有限公司 Non-net self-walking storage battery and direct-current bus bidirectional converter system for rail transit
CN111786399A (en) * 2020-07-22 2020-10-16 兰州兰石恩力微电网有限公司 A system for controlling water-based ion battery energy storage inverter
CN116505779A (en) * 2023-05-17 2023-07-28 江苏科曜能源科技有限公司 Single-phase energy storage device
WO2024103328A1 (en) * 2022-11-17 2024-05-23 航霈科技(深圳)有限公司 Power supply terminal, power supply system, power supply control method, and storage medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111572567A (en) * 2020-04-24 2020-08-25 北京北交新能科技有限公司 Non-net self-walking storage battery and direct-current bus bidirectional converter system for rail transit
CN111572567B (en) * 2020-04-24 2024-05-31 北京北交新能科技有限公司 Bidirectional converter system of non-net self-walking storage battery and direct-current bus for rail transit
CN111786399A (en) * 2020-07-22 2020-10-16 兰州兰石恩力微电网有限公司 A system for controlling water-based ion battery energy storage inverter
WO2024103328A1 (en) * 2022-11-17 2024-05-23 航霈科技(深圳)有限公司 Power supply terminal, power supply system, power supply control method, and storage medium
CN116505779A (en) * 2023-05-17 2023-07-28 江苏科曜能源科技有限公司 Single-phase energy storage device

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