CN103066677A - Self-adaptive hybrid power supply system - Google Patents
Self-adaptive hybrid power supply system Download PDFInfo
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- CN103066677A CN103066677A CN2013100431972A CN201310043197A CN103066677A CN 103066677 A CN103066677 A CN 103066677A CN 2013100431972 A CN2013100431972 A CN 2013100431972A CN 201310043197 A CN201310043197 A CN 201310043197A CN 103066677 A CN103066677 A CN 103066677A
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- 230000005611 electricity Effects 0.000 description 14
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- 238000010248 power generation Methods 0.000 description 9
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- 238000005516 engineering process Methods 0.000 description 5
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- 238000009825 accumulation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/50—Energy storage in industry with an added climate change mitigation effect
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The invention discloses a self-adaptive hybrid power supply system which comprises a power supply module, a loading module, a direct-current bus connecting the power supply module and the loading module, and a central controller, wherein the power supply module comprises one or combination of more selected from a main power supply unit, a mains supply unit, a storage battery unit and a standby power supply unit; the outputs of the main power supply unit, the mains supply unit, the storage battery unit and the standby power supply unit are connected respectively to the direct-current bus; and the central controller controls the main power supply unit, the mains supply unit, the storage battery unit and the standby power supply unit to output direct-current power to the direct-current bus, so as to supply power to the loading module. According to the self-adaptive hybrid power supply system, the direct-current bus mode is introduced, the direct-current power generated by various power supply modules is fed on the direct-current bus under the control of the central controller. The central controller controls the power supply amount of each power supply unit; and the power supply unit is added at the distribution input end as required so as to replace the electric supply.
Description
Technical field
The present invention relates to a kind of electric power system, relate in particular to a kind of adaptivity mixed power supply system.
Background technology
Because the development of new energy technology, and entire society is to clean energy resource, the demand of regenerative resource, and present solar energy, wind generating technology has obtained significant progress and has begun to be widely used.Simultaneously, because the condition of power supply factors, also there is numerous enterprises to begin to dispose the generator power supply back-up system of oneself, to satisfy the electricity needs of self enterprise.
UPS (Uninterruptible Power Supply), i.e. uninterrupted power supply.At present, UPS is widely used, UPS utilizes rectifier, battery pack, the cooperation of inverter, realize the sustainable supply of electric power in conjunction with the accumulation of energy of battery pack, to the charge in batteries storage of electrical energy, to be reduced into alternating current by inverter be load supplying to battery discharge to civil power in the time of needs by rectifier when civil power is arranged.Accordingly, common scheme comprises that mainly the scheme of generating electricity by way of merging two or more grid systems reaches from net inversion one power supply plan.
The scheme of generating electricity by way of merging two or more grid systems: the electric energy that wind energy, solar energy etc. is produced converts electric energy to by combining inverter, and according to the index that requires of electrical network electric energy is delivered directly in the electrical network.But, the requirement of generating electricity by way of merging two or more grid systems and cost are high, technically strict guarantee output, frequency, phase place and the amplitude of following the tracks of electrical network, approval that must be by grid company and could surf the Net by the United Dispatching of grid company generally is only suitable for generating electricity on a large scale occasion.
From net inversion one power supply plan: adopt solar energy, wind energy to batteries charging, simultaneously by powering from the output of net inverter, when energy output during greater than power consumption, automatically give batteries charging, when energy output is less than power consumption, battery power discharge does not need to follow the tracks of the variation of electrical network, but directly directly provides corresponding power supply according to load request.But, in net inversion scheme, for the pattern that can only carry out alternative from net inverter and electrical network, can only select all by mains-supplied by the mode of switching, perhaps power by solar energy and battery pack inversion.
In addition, in at present all mixing/stand-by power supply scheme and the equipment, all ubiquity following not enough: when expansion power supply channel being arranged (such as solar energy/wind power generation, internal combustion engine generating) and in the simultaneous situation of civil power, can't use simultaneously, can't dynamic assignment input energy sources ratio, can't effectively utilize expansion power supply channel; For present solar energy in the net power applications, solar power generation and battery pack have consisted of the main body of power supply, when the solar power generation amount can be charged to battery during greater than load, when the solar power generation amount during less than load battery pack then discharge, in case battery pack drains, then inverter can directly turn to bypass mode, directly load is transferred in the civil power, the solar power generation amount all for the battery charging, will cause the degree of depth of battery pack to recycle, and reduce the life-span of battery pack; When the user had disposed generator, user's generator must be configured according to load, and load equipment is carried out necessary grouping, thereby brought the complexity of distribution, even the user has many generators, also can't be competent at easily the merging power supply to same load; When the user exists many supply lines, when but the capacity of every circuit is all limited, that must think at present carries out the division of circuit to load, artificial is divided into two and even a plurality of supplied for electronic system, and can't realize the polymerization power supply of many supply line's energy; When the user has many supply lines, but every supply line's electric weight price there are differences, and perhaps during the electric weight price variance of electricity consumption period, the user can't select most economical line powering dynamically; When electricity generation system is in when being incorporated into the power networks pattern, in case the major network outage, electricity generation system generally also can stop power supply, thereby can't provide the lasting energy for the user.Therefore, above-mentioned many situations occur, its basic reason is that all present electric power system has all adopted main supply and standby mode, just between active and standby, perhaps switch between the multichannel input, and can't realize dynamically that dynamic electric energy obtains, also can't effectively utilize the power supply configuration.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of adaptivity mixed power supply system is provided, adopt the dc bus pattern, the direct current that the different electrical power module is produced is fed on the dc bus under the control of master controller, dc bus can directly be the DC load power supply, also can obtain the galvanic current source from dc bus by inverter, it is the AC load power supply that inversion produces alternating current.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of adaptivity mixed power supply system, dc bus, the master controller of power module, load blocks, the described power module of connection and load blocks; Described power module comprises any one or a few combination in main supply electric unit, mains supply unit, secondary battery unit and the stand-by power supply unit, and the output of described main supply electric unit, mains supply unit, secondary battery unit and stand-by power supply unit is connected on the described dc bus; Described master controller control main supply electric unit, mains supply unit, secondary battery unit and output DC source, stand-by power supply unit to described dc bus to give described load blocks power supply.
As the improvement of such scheme, described master controller control described main supply electric unit, mains supply unit, secondary battery unit and stand-by power supply unit respectively with any one pattern output DC source in constant voltage mode, permanent power mode, constant current mode, maximum power pattern and the maximum current pattern to described dc bus.
As the improvement of such scheme, described mains supply unit comprises electrical network and intelligent rectifying device, and described electrical network passes through described intelligent rectifying device output DC source to described dc bus.
As the improvement of such scheme, described stand-by power supply unit comprises thermoelectric generator and intelligent rectifying device, and described thermoelectric generator passes through described intelligent rectifying device output DC source to described dc bus.
As the improvement of such scheme, described intelligent rectifying device comprises input filter, commutator unit, output filter, current detector; Described commutator unit is any one in silicon controlled rectifier, IGBT rectifier, the PWM control device; Described PWM control device comprises pwm control circuit and isolating transformer.
As the improvement of such scheme, described main supply electric unit comprises generator and MPPT controller, and described generator passes through described MPPT controller output DC source to described dc bus; Described generator is solar generator or wind-driven generator.
As the improvement of such scheme, described load blocks is DC load, and described DC load is connected on the described dc bus.
As the improvement of such scheme, described load blocks is AC load, and described AC load is connected on the described dc bus by inverter.
As the improvement of such scheme, described master controller is provided with the Control interface to trigger described stand-by power supply unit.
Improvement as such scheme, also be provided with RS232 and RS485 communication interface on the described master controller, described master controller is by described RS232 and RS485 communication interface control main supply electric unit, mains supply unit, secondary battery unit and stand-by power supply unit.
Implement the embodiment of the invention, have following beneficial effect:
The adaptivity mixed power supply system adopts the dc bus pattern, and the direct current that different power supply units (main supply electric unit, mains supply unit, secondary battery unit, stand-by power supply unit etc.) are produced is fed on the dc bus under the control of master controller.Dc bus can also can obtain the galvanic current source from dc bus by inverter directly for the DC load power supply, and it is the AC load power supply that inversion produces alternating current.
In addition, master controller carries out intelligentized management to the amount of power supply of each power supply unit, dynamic control, rather than adopt simple switch mode, and can effectively promote the effect of solar energy, wind power generation, the user does not need to dispose the benefit that enough generation of electricity by new energy devices and enough battery pack just can be enjoyed new forms of energy, but can invest by stages, increase solar energy stage by stage, wind power generation amount progressively substitute civil power, thereby obtain better economic benefit and social benefit.Simultaneously, the supply line that does not affect the user is transformed in power supply, does not need any adjustment and reallocation are done in original load, directly increases power supply unit at the distribution input and gets final product, and the function of the uninterrupted power supply that also possesses has power supply reliability and persistence.
Description of drawings
Fig. 1 is the structural representation of adaptivity mixed power supply system of the present invention;
Fig. 2 is another structural representation of adaptivity mixed power supply system of the present invention;
Fig. 3 is the structural representation of mains supply unit in the adaptivity mixed power supply system of the present invention;
Fig. 4 is another structural representation of mains supply unit in the adaptivity mixed power supply system of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of adaptivity mixed power supply system of the present invention, and as shown in Figure 1, the adaptivity mixed power supply system comprises power module 1, load blocks 3, connects dc bus 2, the master controller 4 of described power module 1 and load blocks 3.
Wherein, described power module 1 comprises any one or a few combination in main supply electric unit 11, mains supply unit 12, secondary battery unit 13 and the stand-by power supply unit 14, and the quantity of described power supply unit 11, mains supply unit 12, secondary battery unit 13 and stand-by power supply unit 14 can be for one or more.The output of described main supply electric unit 11, mains supply unit 12, secondary battery unit 13 and stand-by power supply unit 14 is connected on the described dc bus 2.
Described master controller 4 control main supply electric units 11, mains supply unit 12, secondary battery unit 13 and 14 output DC sources, stand-by power supply unit to described dc bus 2 to give described load blocks 3 power supplies.
Need to prove that the adaptivity mixed power supply system adopts the dc bus pattern, the direct current that power module 1 is produced is being fed on the dc bus 2 under the control of master controller 4.Simultaneously, the main supply electric unit 11 in the power module 1, mains supply unit 12, secondary battery unit 13 and stand-by power supply unit 14 are separate, and the user can arrange according to actual conditions the power supply unit of any type and quantity in the adaptivity mixed power supply system.Correspondingly, power supply transformation (increasing or reduce power supply unit) does not affect user's supply line, does not need any adjustment and reallocation are done in original load, only needs direct input at dc bus 2 to increase or reduce power supply unit and gets final product.
More preferably, the described main supply electric unit 11 of described master controller 4 controls, mains supply unit 12, secondary battery unit 13 and stand-by power supply unit 14 respectively with any one pattern output DC source in constant voltage mode, permanent power mode, constant current mode, maximum power pattern and the maximum current pattern to described dc bus 2.
Need to prove the power division of master controller 4 each power supply unit of capable of regulating.The service data of all main supply electric units 11 of master controller 4 Systems, mains supply unit 12, secondary battery unit 13 and stand-by power supply unit 14, dc bus 2, load blocks 3, and the mode of operation (such as constant voltage mode, permanent power mode, constant current mode, maximum power pattern and maximum current pattern etc.) of each power supply unit in the power module 1 that arranges according to the user, control the operating state of each power supply unit and dc bus 2.
For example, comprise main supply electric unit A1, mains supply unit A2, dc bus B, load blocks C, master controller D in certain adaptivity mixed power supply system.The user can arrange main supply electric unit A1 by master controller D and adopt the power supply of maximum power pattern, and mains supply unit A2 adopts the constant voltage mode power supply.During work, main supply electric unit A1 keeps maximum power output under the control of master controller D, and energy output is exported among the dc bus B to greatest extent, and C powers to load blocks, and correspondingly, mains supply unit A2 is operated under the constant voltage mode.When main supply electric unit A1 energy output was not enough, the electric current that main supply electric unit A1 is provided to dc bus B can reduce, and voltage slightly descends, at this moment, mains supply unit A2 is under constant voltage mode, and its power output can improve automatically, thereby increases the input power of mains supply unit A2; When main supply electric unit A1 energy output improved, the electric current that makes main supply electric unit A1 be provided to dc bus B increased, and voltage slightly rises, and at this moment, mains supply unit A2 is under constant voltage mode, and its power output can reduce until close fully automatically.Therefore, can realize the preferential use of certain power supply unit, simultaneously, the normal operation of proof load module C.
Fig. 2 is another structural representation of adaptivity mixed power supply system of the present invention.
As shown in Figure 2, described main supply electric unit 11 comprises generator 111 and MPPT controller 112, and described generator 111 passes through described MPPT controller 112 output DC sources to described dc bus 2.
Need to prove that described generator 111 is solar generator or wind-driven generator.
Preferentially, described main supply electric unit 11 adopts the maximum power patterns, and the electric weight that in real time solar generator or wind-driven generator is produced under the control of master controller 4 exports in the described dc bus 2 to greatest extent by MPPT controller 112.
Simultaneously, described mains supply unit 12 comprises electrical network 121 and intelligent rectifying device 122, and described electrical network 121 passes through described intelligent rectifying device 122 output DC sources to described dc bus 2.
Preferentially, described mains supply unit 12 adopts constant voltage mode, and under the control of master controller 4, intelligent rectifying device 122 is regulated the input power of electrical network 121 in real time according to the voltage condition of dc bus 2, makes the voltage of dc bus 2 keep constant.
Simultaneously, described stand-by power supply unit 14 comprises thermoelectric generator 141 and intelligent rectifying device 142, and described thermoelectric generator 141 goes out DC power supply to described dc bus 2 by described intelligent rectifying device defeated 142.
Preferentially, described stand-by power supply unit 14 adopts maximum power pattern (perhaps permanent power mode), and under the control of master controller 4, intelligent rectifying device 142 is regulated the input power of thermoelectric generator 141 in real time.
For example, comprise main supply electric unit (solar generator, MPPT controller), mains supply unit (electrical network, intelligent rectifying device), dc bus, load blocks, master controller in certain adaptivity mixed power supply system.The user can arrange the main supply electric unit by master controller and adopt the power supply of maximum power pattern, and the mains supply unit adopts the constant voltage mode power supply.During work, solar generator adopts the MPPT technology that energy output is exported in the dc bus to greatest extent by the MPPT controller, correspondingly, the mains supply unit as a supplement run-mode under constant voltage mode.When the energy output of solar generator was not enough, the MPPT controller can make the electric current that is provided to dc bus reduce, and causes voltage slightly to descend, at this moment, the intelligence rectifying device is under constant voltage mode, and its power output can improve automatically, thereby increases the input power of electrical network; When the energy output of solar generator improves, the MPPT controller can make the output current of heightening solar generator, increases the power that is provided to dc bus, and the voltage of dc bus is slightly risen, at this moment, intelligent rectifying device can reduce the current direct of electrical network input automatically to cutting out fully.
For example, the user has the stand-by power supply unit (thermoelectric generator, intelligent rectifying device A) of oneself, and the cost that uses the stand-by power supply unit to generate electricity is lower than the electric cost of purchasing of mains supply unit (electrical network, intelligent rectifying device B).At this moment, can the intelligent rectifying device A that connect thermoelectric generator be set by master controller and enter the maximum power pattern, the intelligent rectifier B that connects electrical network enters constant voltage output services pattern.When thermoelectric generator generates electricity when abundant, because the effect of intelligent rectifier A DC bus-bar voltage is slightly risen, and intelligent rectifier B is operated under the constant voltage mode, then power output can be the minimizing of rule until close, thus to greatest extent less power consumption from electrical network.
In addition, in power supply units all except secondary battery unit 13 is equal, have no progeny, because secondary battery unit 13 is directly parallel on the dc bus 2, when the voltage of dc bus 2 is lower than battery tension in the secondary battery unit 13, storage battery then enters discharge mode automatically, thereby keeps the output DC source; When other power supply units were arranged in work, if direct voltage is higher than storage battery, then storage battery entered charged state.Thereby realizing the function of uninterrupted power supply, is that the adaptivity mixed power supply system has power supply reliability and persistence.
More preferably, described master controller 4 is provided with the Control interface to trigger described stand-by power supply unit 14.When the electricity shortage of the power supply unit of a certain road or multichannel, can trigger stand-by power supply unit 14 by this Control interface and power.
When containing the multiple-way supply unit such as main supply electric unit 11, mains supply unit 12, secondary battery unit 13 and stand-by power supply unit 14 in the power module 1, can control by 4 pairs of each power supply units of master controller.
For example, main supply electric unit 11 adopts the maximum power work pattern, and mains supply unit 12 adopts constant voltage mode work, and stand-by power supply unit 14 adopts maximum power to carry out work and need the Control interface to trigger.During work, work under default pattern respectively in main supply electric unit 11 and mains supply unit 12, when main supply electric unit 11 and 12 electricity shortage of mains supply unit, Control interface on the master controller 4 triggers stand-by power supply unit 14 and powers, but, when main supply electric unit 11, mains supply unit 12, when stand-by power supply unit 14 all interrupts, 13 of secondary battery units enter discharge mode automatically, thereby keep the power supply to load.
Need to prove that the structure of described intelligent rectifying device 122 and intelligent rectifying device 142 is identical, described intelligent rectifying device 122 comprises input filter 1221, commutator unit, output filter 1224, current detector 1223.
More preferably, described commutator unit is any one in silicon controlled rectifier 1226, IGBT rectifier, the PWM control device, and wherein, described PWM control device comprises pwm control circuit 1222 and isolating transformer 1225.
Need to prove, adopt the controlled rectifier (silicon controlled rectifier 1226, IGBT rectifier) of power can effectively realize the AC/DC conversion; Simultaneously, adopt the mode (PWM control device) of pulse-width modulation also can effectively realize the DC/DC conversion that power is controlled, output is aggregated in the dc bus 2.
Fig. 3 is the structural representation of mains supply unit in the adaptivity mixed power supply system of the present invention.
When selecting the PWM control device, output voltage, electric current can be sampled and feed back in the pwm control circuit 1222, pwm control circuit 1222 compares with the fiducial value that master controller 4 provides, the duty ratio of adjusting PWM reaches the purpose of adjusting output voltage, thereby makes output voltage strictly follow the requirement of pattern set in the master controller 4.
Fig. 4 is another structural representation of mains supply unit in the adaptivity mixed power supply system of the present invention.
When selecting silicon controlled rectifier 1226, output voltage, electric current can be sampled and feed back in the silicon controlled rectifier 1226, silicon controlled rectifier 1226 compares with the fiducial value that master controller 4 provides, adjust output voltage, thereby make output voltage strictly follow the requirement of pattern set in the master controller 4.
As shown in Figure 2, described load blocks 3 can be DC load 33, and described DC load 33 is connected on the described dc bus 2.
More preferably, described load blocks 3 can also be AC load 32, and described AC load 32 is connected on the described dc bus 2 by inverter 31.
More preferably, 4 also are provided with RS232 and RS485 communication interface on the described master controller, and described master controller 4 is by described RS232 and RS485 communication interface control main supply electric unit 11, mains supply unit 12, secondary battery unit 13 and stand-by power supply unit 14.
Need to prove, master controller 4 (comprises input voltage, input current, input power by the service data that RS232 and RS485 communication interface gather all intelligent rectifiers and MPPT controller 112, output voltage, output current, the parameters such as power output), the voltage of dc bus 2, inverter 31 operating state (input currents, output voltage, parameters such as output current), and with the data that collect gather.In addition, the user can be by the mode of operation (such as constant voltage mode, permanent power mode, constant current mode, maximum power pattern and maximum current pattern etc.) that master controller 4 any one road power supply units are set, master controller 4 is controlled the operating state of each power supply unit and dc bus 2 according to the mode of operation that the user arranges.Correspondingly, under permanent power mode, the user can arrange concrete magnitude of power, and for any one road power supply unit, input maximum power or maximum output current can be set all.
Therefore, when solar energy, wind-driven generator are arranged, can make up main supply electric unit 11, adopt the maximum power pattern, the preferential solar wind-energy that uses, under powered part can by arrange from mains supply unit 12, secondary battery unit 13 obtains, thereby can maximizedly utilize clean energy resource.Simultaneously, if the multiple-way supply unit is arranged, the power supply unit that preferentially use cost is lower carries out power supply, to reduce energy consumption cost, if but there is different capacity limit the multiple-way supply unit, can selectively compiles electric energy by arranging, thereby effectively utilize the power supply configuration capacity.In addition, when having the multiple-way supply unit, any one the tunnel interrupts, by the automatic redistribution input of master controller energy, thus the function of realization uninterrupted power supply.And when electrical network interrupts, can discharge the energy that provides certain by secondary battery unit 13, and keep load normally to move, when secondary battery unit 13 off-capacity, can be according to realizing that needs dynamically start stand-by power supply unit 14.By such design, the user can take full advantage of the generating of expansion channel, comprises self-built solar energy, the main supply electric units such as wind-force, control energy consumption cost.
As from the foregoing, the adaptivity mixed power supply system adopts the dc bus pattern, and the direct current that different power supply units (main supply electric unit 11, mains supply unit 12, secondary battery unit 13, stand-by power supply unit 14 etc.) are produced is being fed on the dc bus 2 under the control of master controller 4.Dc bus 2 can directly be DC load 33 power supplies, also can obtain the galvanic current source from dc bus 2 by inverter 31, and it is AC load 32 power supplies that inversion produces alternating current.In addition, in master controller 4, introduced current feedback mechanism, increased the Control interface, RS232 and RS485 communication interface, amount of power supply to each power supply unit is carried out intelligentized management, dynamic control, rather than adopt simple switch mode, make power supply unit under the control of master controller 4, carry out work according to AD HOC, can effectively promote solar energy, the effect of wind power generation, the user does not need to dispose the benefit that enough generation of electricity by new energy devices and enough battery pack just can be enjoyed new forms of energy, join but directly increase on original basis, can invest by stages, increase solar energy stage by stage, the wind power generation amount progressively substitutes civil power, thereby obtains better economic benefit and social benefit.Simultaneously, the supply line that does not affect the user is transformed in power supply, does not need any adjustment and reallocation are done in original load, directly increases power supply unit at the distribution input and gets final product.
The above is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (10)
1. an adaptivity mixed power supply system is characterized in that, comprises dc bus, the master controller of power module, load blocks, the described power module of connection and load blocks;
Described power module comprises any one or a few combination in main supply electric unit, mains supply unit, secondary battery unit and the stand-by power supply unit, and the output of described main supply electric unit, mains supply unit, secondary battery unit and stand-by power supply unit is connected on the described dc bus;
Described master controller control main supply electric unit, mains supply unit, secondary battery unit and output DC source, stand-by power supply unit to described dc bus to give described load blocks power supply.
2. adaptivity mixed power supply system as claimed in claim 1, it is characterized in that, described master controller control described main supply electric unit, mains supply unit, secondary battery unit and stand-by power supply unit respectively with any one pattern output DC source in constant voltage mode, permanent power mode, constant current mode, maximum power pattern and the maximum current pattern to described dc bus.
3. adaptivity mixed power supply system as claimed in claim 1 is characterized in that, described mains supply unit comprises electrical network and intelligent rectifying device, and described electrical network passes through described intelligent rectifying device output DC source to described dc bus.
4. adaptivity mixed power supply system as claimed in claim 1 is characterized in that, described stand-by power supply unit comprises thermoelectric generator and intelligent rectifying device, and described thermoelectric generator passes through described intelligent rectifying device output DC source to described dc bus.
5. such as claim 3 or 4 described adaptivity mixed power supply systems, it is characterized in that described intelligent rectifying device comprises input filter, commutator unit, output filter, current detector;
Described commutator unit is any one in silicon controlled rectifier, IGBT rectifier, the PWM control device;
Described PWM control device comprises pwm control circuit and isolating transformer.
6. adaptivity mixed power supply system as claimed in claim 1 is characterized in that, described main supply electric unit comprises generator and MPPT controller, and described generator passes through described MPPT controller output DC source to described dc bus;
Described generator is solar generator or wind-driven generator.
7. adaptivity mixed power supply system as claimed in claim 1 is characterized in that, described load blocks is DC load, and described DC load is connected on the described dc bus.
8. adaptivity mixed power supply system as claimed in claim 1 is characterized in that, described load blocks is AC load, and described AC load is connected on the described dc bus by inverter.
9. adaptivity mixed power supply system as claimed in claim 1 is characterized in that, described master controller is provided with the Control interface to trigger described stand-by power supply unit.
10. such as each described adaptivity mixed power supply system of claim 1 ~ 9, it is characterized in that, also be provided with RS232 and RS485 communication interface on the described master controller, described master controller is by described RS232 and RS485 communication interface control main supply electric unit, mains supply unit, secondary battery unit and stand-by power supply unit.
Priority Applications (1)
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| WO2015096751A1 (en) * | 2013-12-25 | 2015-07-02 | 联方云天科技(北京)有限公司 | Networked distributed dynamic power balancing method |
| WO2016000421A1 (en) * | 2014-07-02 | 2016-01-07 | 佛山市柏克新能科技股份有限公司 | Solar ups system |
| CN105553071A (en) * | 2015-12-08 | 2016-05-04 | 成都芯软科技发展有限公司 | Miniature solar charging module |
| CN105762919A (en) * | 2016-04-22 | 2016-07-13 | 刘昊洋 | Charging system based on photovoltaic performance |
| CN110086247A (en) * | 2019-05-08 | 2019-08-02 | 冯刘海 | The power supply system of data center |
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| CN110768526A (en) * | 2019-11-04 | 2020-02-07 | 河北电立方新能源科技有限公司 | Boost circuit and control method thereof |
| CN111497670A (en) * | 2020-04-29 | 2020-08-07 | 西安特锐德智能充电科技有限公司 | A charging device, system and method |
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| WO2016000421A1 (en) * | 2014-07-02 | 2016-01-07 | 佛山市柏克新能科技股份有限公司 | Solar ups system |
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| CN105553071A (en) * | 2015-12-08 | 2016-05-04 | 成都芯软科技发展有限公司 | Miniature solar charging module |
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