Online energy storage battery pack evaluation method and device
A technology for evaluating devices and battery packs, applied in measurement devices, measuring electricity, measuring electrical variables, etc., can solve the problems affecting the service life of energy storage battery packs, the large amount of operating data of energy storage battery packs, and limiting the application value of energy storage battery packs and other problems to achieve the effect of enhancing application value, extending service life and promoting performance upgrades
Active Publication Date: 2018-03-02
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology
[0003] Many battery energy storage power stations have been built and put into operation in China. They are mainly used on the renewable energy side, the urban distribution network side, and the user side of industrial and commercial parks. There are still many problems that need to be studied in depth. The reason is that there is a big difference between the key technologies of the integrated application of battery energy storage power stations in my country and foreign advanced technologies, and the performance of the battery itself is particularly prominent.
[0004] In addition, the energy storage battery pack has a large amount of operating data, and the energy storage monitoring system cannot evaluate the operating status of the energy storage battery pack online, resulting in the failure of timely operation and maintenance of the energy storage battery pack, which affects the service life of the energy storage battery pack and limits the The application value of energy battery pack
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[0057] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0059] In China, battery energy storage power stations are mainly used on the renewable energy side, the urban distribution network side, and the user side of industrial and commercial parks. I...
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The invention relates to an online energy storage battery pack evaluation method and device. The method comprises steps that a work voltage and SOC calibration value relation table is acquired; SOC precision and SOH precision are respectively determined according to the relation table; an energy storage battery pack evaluation coefficient is determined according to SOC precision and SOH precision,an energy storage battery pack is evaluated through utilizing the energy storage battery pack evaluation coefficient. The method is advantaged in that SOC precision and SOH precision are respectivelyacquired through extracting SOC calibration values of the work voltage and SOC calibration value relation table, so the energy storage battery pack evaluation coefficient is determined, operation characteristics of the energy storage battery pack is mastered according to the evaluation coefficient in real time, a user is prompted to carry out operation maintenance of the energy storage battery pack, service life of the energy storage battery pack is prolonged, and the application effect of the energy storage battery pack is effectively improved.
Description
technical field [0001] The invention relates to the field of power system energy storage, in particular to an online evaluation method and device for an energy storage battery pack. Background technique [0002] Under the background of the construction of energy Internet and the rapid development of new energy, battery energy storage power stations have ushered in a good opportunity for development. At the same time, with the rapid progress of energy storage technology and the sharp drop in cost, my country's energy storage industry has transitioned from demonstration application to the initial stage of commercialization. A number of energy planning policies issued by the state recently, including the "Thirteenth Five-Year Plan", "Energy Development Strategic Action Plan (2014-2020)", "Energy Technology Revolution Innovation Action Plan (2016-2030)", "Power" The 13th Five-Year Plan and the 13th Five-Year Plan for Renewable Energy all regard energy storage as one of the key ...
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IPC IPC(8): G01R31/36
CPCG01R31/388G01R31/392G01R31/396
Inventor 薛金花叶季蕾王德顺陶琼杨波许庆强柳丹周幸福
Owner CHINA ELECTRIC POWER RES INST