CN204706949U - Intelligent substation solar energy UPS emergency power supply system - Google Patents
Intelligent substation solar energy UPS emergency power supply system Download PDFInfo
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- CN204706949U CN204706949U CN201520500724.2U CN201520500724U CN204706949U CN 204706949 U CN204706949 U CN 204706949U CN 201520500724 U CN201520500724 U CN 201520500724U CN 204706949 U CN204706949 U CN 204706949U
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- 238000010248 power generation Methods 0.000 claims abstract description 28
- 238000004146 energy storage Methods 0.000 claims abstract description 21
- 238000003491 array Methods 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 8
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008439 repair process Effects 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本实用新型公开了智能变电站用太阳能UPS应急供电系统，智能变电站用太阳能UPS应急供电系统，包括分布式光伏发电装置、UPS主机、储能直流电源和变电站交流电源。所述UPS主机分别可开闭地连接储能直流电源和变电站交流电源，所述UPS主机还连接所述分布式光伏发电装置，变电站交流电源发生故障时，所述分布式光伏发电装置为UPS主机供电，分布式光伏发电装置电能耗尽时，所述储能直流电源为UPS主机供电。本实用新型在智能变电站交流电源发生故障时，可以通过分布式光伏发电系统向重要设备供电，有效地延长了在故障发生后UPS系统储能直流电源向重要设备的供电时间，从而克服了直流系统蓄电池放电时间过短的缺点，增加了智能变电站UPS系统的供电可靠性。
The utility model discloses a solar UPS emergency power supply system for an intelligent substation. The solar UPS emergency power supply system for an intelligent substation comprises a distributed photovoltaic power generation device, a UPS host, an energy storage DC power supply and a substation AC power supply. The UPS host can be connected to the energy storage DC power supply and the AC power supply of the substation respectively, and the UPS host is also connected to the distributed photovoltaic power generation device. When the AC power supply of the substation fails, the distributed photovoltaic power generation device is the UPS host For power supply, when the power of the distributed photovoltaic power generation device is exhausted, the energy storage DC power supply supplies power to the UPS host. When the AC power supply of the intelligent substation fails, the utility model can supply power to important equipment through the distributed photovoltaic power generation system, effectively prolonging the power supply time of the UPS system energy storage DC power supply to important equipment after the failure occurs, thus overcoming the problem of the DC system The shortcoming of battery discharge time increases the power supply reliability of UPS system in smart substation.
Description
技术领域technical field
本实用新型涉及智能变电站领域，具体涉及的是智能变电站用太阳能UPS应急供电系统。The utility model relates to the field of intelligent substations, in particular to a solar UPS emergency power supply system for intelligent substations.
背景技术Background technique
相关技术中，智能变电站通常会配置UPS系统，为智能变电站内的计算机监控系统、故障保护信息子站、电能计费系统、故障录波系统、火灾报警系统及通信设备等重要设备提供后备电源。UPS系统内蓄电池与主机相连，通过主机逆变器等模块电路将直流电转换为交流电，为重要设备供电。其中，蓄电池是UPS系统的储能直流电源。但是发明人发现，蓄电池容量一般按照2小时事故放电时间设计，发生事故时提供负荷运行时间过短，为事故抢修带来了极大的不便。In related technologies, smart substations are usually equipped with UPS systems to provide backup power for important equipment such as computer monitoring systems, fault protection information sub-stations, power billing systems, fault recording systems, fire alarm systems, and communication equipment in smart substations. The storage battery in the UPS system is connected to the host, and the DC power is converted into AC power through a module circuit such as the host inverter to supply power for important equipment. Among them, the battery is the energy storage DC power supply of the UPS system. However, the inventors have found that the storage battery capacity is generally designed according to the 2-hour accident discharge time, and the load running time is too short when an accident occurs, which brings great inconvenience to emergency repairs.
实用新型内容Utility model content
针对上述问题，本实用新型的目的是提供智能变电站用太阳能UPS应急供电系统，解决UPS供电时间过短，可靠性较低的技术问题。In view of the above problems, the purpose of this utility model is to provide a solar UPS emergency power supply system for smart substations, and solve the technical problems of too short UPS power supply time and low reliability.
为解决上述技术问题，本实用新型采用的技术方案是，智能变电站用太阳能UPS应急供电系统，包括分布式光伏发电装置、UPS主机、储能直流电源和变电站交流电源。所述UPS主机分别可开闭地连接储能直流电源和变电站交流电源，所述UPS主机还连接所述分布式光伏发电装置，变电站交流电源发生故障时，所述分布式光伏发电装置为UPS主机供电，分布式光伏发电装置电能耗尽时，所述储能直流电源为UPS主机供电。In order to solve the above technical problems, the technical solution adopted by the utility model is that the solar UPS emergency power supply system for smart substations includes distributed photovoltaic power generation devices, UPS hosts, energy storage DC power supplies and substation AC power supplies. The UPS host can be connected to the energy storage DC power supply and the AC power supply of the substation respectively, and the UPS host is also connected to the distributed photovoltaic power generation device. When the AC power supply of the substation fails, the distributed photovoltaic power generation device is the UPS host When the power of the distributed photovoltaic power generation device is exhausted, the energy storage DC power supply supplies power to the UPS host.
作为优选，所述分布式光伏发电装置包括太阳能电池阵列，多个太阳能电池阵列并联连接至所述防雷汇流箱进行汇流，汇流后的电流依次经过直流配电柜和光伏逆变器，并最终连接至所述UPS主机。Preferably, the distributed photovoltaic power generation device includes a solar cell array, and multiple solar cell arrays are connected in parallel to the lightning protection combiner box for confluence, and the current after confluence passes through the DC power distribution cabinet and the photovoltaic inverter in sequence, and finally Connect to the UPS host.
作为优选，所述太阳能电池阵列由多个光伏电池组件通过串联方式组成。Preferably, the solar cell array is composed of a plurality of photovoltaic cell components connected in series.
作为优选，所述光伏逆变器与UPS主机通过主从机并联接线。Preferably, the photovoltaic inverter and the UPS host are wired in parallel through master-slave machines.
本实用新型提供了智能变电站发生突发故障时供电电能的另一方式，增加了UPS系统的供电可靠性。在智能变电站交流电源发生故障时，可以通过分布式光伏发电系统向重要设备供电，当分布式光伏发电系统无法达到放电条件时，再切换至UPS系统的储能直流电源供电，这样有效地延长了在故障发生后UPS系统的储能直流电源向重要设备的供电时间，从而克服了直流系统蓄电池放电时间过短的缺点，增加了智能变电站UPS系统的供电可靠性。The utility model provides another way of supplying electric energy when a sudden failure occurs in an intelligent substation, and increases the power supply reliability of the UPS system. When the AC power supply of the smart substation fails, the distributed photovoltaic power generation system can be used to supply power to important equipment. After the failure occurs, the energy storage DC power supply of the UPS system can supply power to important equipment, thereby overcoming the shortcoming of the battery discharge time of the DC system, and increasing the power supply reliability of the UPS system of the smart substation.
附图说明Description of drawings
利用附图对实用新型作进一步说明，但附图中的实施例不构成对本实用新型的任何限制，对于本领域的普通技术人员，在不付出创造性劳动的前提下，还可以根据以下附图获得其它的附图。Utilize accompanying drawing to further illustrate the utility model, but the embodiment in the accompanying drawing does not constitute any restriction to the present utility model, for those of ordinary skill in the art, under the premise of not paying creative work, also can obtain according to following accompanying drawing Additional drawings.
图1是本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
附图标记：1、太阳能电池阵列，2、防雷汇流箱，3、直流配电柜，4、光伏逆变器，5、UPS主机，6、变电站交流电源，7、储能直流电源，8、手动旁路输入，9、分布式光伏发电装置，Z11、变电站交流电源与UPS主机间的开关，Z12、储能直流电源与UPS主机间的开关，Z13、手动旁路输入与UPS主机间的开关。Reference signs: 1. Solar cell array, 2. Lightning protection combiner box, 3. DC power distribution cabinet, 4. Photovoltaic inverter, 5. UPS host, 6. Substation AC power supply, 7. Energy storage DC power supply, 8 , manual bypass input, 9, distributed photovoltaic power generation device, Z11, the switch between the AC power supply of the substation and the UPS host, Z12, the switch between the energy storage DC power supply and the UPS host, Z13, the switch between the manual bypass input and the UPS host switch.
具体实施方式Detailed ways
结合以下实施例对本实用新型作进一步描述。The utility model is further described in conjunction with the following examples.
智能变电站用太阳能UPS应急供电系统，包括分布式光伏发电装置9、UPS主机5、储能直流电源7和变电站交流电源6。所述UPS主机5分别可开闭地连接储能直流电源7和变电站交流电源6，所述UPS主机5还连接所述分布式光伏发电装置9，变电站交流电源6发生故障时，所述分布式光伏发电装置9为UPS主机5供电，分布式光伏发电装置9电能耗尽时，所述储能直流电源7为UPS主机5供电。The solar UPS emergency power supply system for smart substations includes a distributed photovoltaic power generation device 9 , a UPS host 5 , an energy storage DC power supply 7 and a substation AC power supply 6 . The UPS host 5 is respectively switchably connected to the energy storage DC power supply 7 and the substation AC power supply 6, and the UPS host 5 is also connected to the distributed photovoltaic power generation device 9. When the substation AC power supply 6 fails, the distributed The photovoltaic power generation device 9 supplies power to the UPS mainframe 5. When the distributed photovoltaic power generation device 9 is exhausted, the energy storage DC power supply 7 supplies power to the UPS mainframe 5.
具体实施中，所述分布式光伏发电装置9包括太阳能电池阵列1，多个太阳能电池阵列1并联连接至所述防雷汇流箱2进行汇流，汇流后的电流依次经过直流配电柜3和光伏逆变器4，并最终连接至所述UPS主机5。In a specific implementation, the distributed photovoltaic power generation device 9 includes a solar cell array 1, and a plurality of solar cell arrays 1 are connected in parallel to the lightning protection combiner box 2 for confluence, and the current after confluence passes through the DC power distribution cabinet 3 and the photovoltaic Inverter 4, and finally connected to the UPS host 5.
具体实施中，所述太阳能电池阵列1由多个光伏电池组件通过串联方式组成。In a specific implementation, the solar cell array 1 is composed of multiple photovoltaic cell modules connected in series.
具体实施中，所述光伏逆变器4与UPS主机5通过主从机并联接线。In a specific implementation, the photovoltaic inverter 4 and the UPS host 5 are wired in parallel through master-slave machines.
本实用新型主要是利用分布式光伏发电装置9实现持续不间断地向智能变电站的重要设备供电，克服现今UPS系统的不足。当变电站交流电源6出现故障时，分布式光伏发电装置9持续供电。当分布式光伏发电装置9不足以达到放电条件时，切换至储能直流电源7，继续供电。正常运作时，变电站交流电源6通过UPS主机5供电。当变电站交流电源6发生故障时，变电站交流电源6与UPS主机5间的开关Z11断开，UPS主机5由分布式光伏发电装置9供电。当分布式光伏发电装置9无法正常供电时，UPS主机5自动无延时切换至储能直流电源7，此时储能直流电源7与UPS主机5间的开关Z12闭合。当储能直流电源7与分布式光伏发电装置9电能耗尽时，UPS主机5切换至手动旁路输入8，此时UPS主机5与手动旁路输入8间的开关Z13闭合。The utility model mainly utilizes the distributed photovoltaic power generation device 9 to realize continuous and uninterrupted power supply to the important equipment of the intelligent substation, and overcomes the deficiency of the present UPS system. When the AC power supply 6 of the substation fails, the distributed photovoltaic power generation device 9 continues to supply power. When the distributed photovoltaic power generation device 9 is not enough to meet the discharge condition, switch to the energy storage DC power supply 7 and continue to supply power. During normal operation, the AC power supply 6 of the substation is powered by the UPS host 5 . When the AC power supply 6 of the substation fails, the switch Z11 between the AC power supply 6 of the substation and the UPS host 5 is disconnected, and the UPS host 5 is powered by the distributed photovoltaic power generation device 9 . When the distributed photovoltaic power generation device 9 fails to supply power normally, the UPS host 5 automatically switches to the energy storage DC power supply 7 without delay, and at this time the switch Z12 between the energy storage DC power supply 7 and the UPS host 5 is closed. When the energy storage DC power supply 7 and the distributed photovoltaic power generation device 9 are exhausted, the UPS host 5 switches to the manual bypass input 8, and the switch Z13 between the UPS host 5 and the manual bypass input 8 is closed.
最后应当说明的是，以上实施例仅用以说明本实用新型的技术方案，而非对本实用新型保护范围的限制，尽管参照较佳实施例对本实用新型作了详细地说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或者等同替换，而不脱离本发明创造技术方案的实质和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the present invention.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529811A (en) * | 2016-02-02 | 2016-04-27 | 武汉艾德杰电子有限责任公司 | Photovoltaic DC energy efficiency management system |
| CN113193603A (en) * | 2021-05-31 | 2021-07-30 | 阳光电源股份有限公司 | Power distribution method of energy management system and energy management system |
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2015
- 2015-07-10 CN CN201520500724.2U patent/CN204706949U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529811A (en) * | 2016-02-02 | 2016-04-27 | 武汉艾德杰电子有限责任公司 | Photovoltaic DC energy efficiency management system |
| CN113193603A (en) * | 2021-05-31 | 2021-07-30 | 阳光电源股份有限公司 | Power distribution method of energy management system and energy management system |
| CN113193603B (en) * | 2021-05-31 | 2024-04-12 | 阳光电源股份有限公司 | Power distribution method of energy management system and energy management system |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: Electric Power Research Institute, State Grid Xinjiang Electric Power Company Patentee after: State Grid Corporation Co-patentee after: National Network Xinjiang Comprehensive Energy Service Co., Ltd. Co-patentee after: Guo Wang Gansu Power Company Electric Power Research Institute Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: Electric Power Research Institute, State Grid Xinjiang Electric Power Company Patentee before: State Grid Corporation Co-patentee before: Xinjiang power energy conservation service Co., Ltd Co-patentee before: Guo Wang Gansu Power Company Electric Power Research Institute |
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