Control method of energy storage power station based on state evaluation of energy storage unit
A technology of energy storage unit and energy storage power station, which is applied in the direction of single-network parallel feeding arrangement, data processing application, instruments, etc., to achieve the effects of improving stability, improving battery utilization rate, and prolonging battery life.
Active Publication Date: 2020-06-26
SOUTHERN POWER GRID PEAK LOAD & FREQUENCY REGULATION GENERATING CO LTD +1
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Problems solved by technology
Although there are many evaluation methods, how to use the evaluated operating state of the energy storage battery as the basis for the adjustment of the energy storage power station, and how to optimize the operating life of the battery during the adjustment process is a more important issue.
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[0056] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
[0057] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.
[0058] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, components...
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The invention relates to an energy storage power station control method based on energy storage unit state assessment. The method comprises the following steps: screening first monitor information uploaded by an energy conversion system PCS to acquire first parameter information; screening second monitor information uploaded by a battery management system BMS to acquire second parameter information; assessing the energy storage unit according to a current value of the second parameter information to determine the current state assessment result of the energy storage unit; determining the running state adjusting priority of the energy storage unit according to the current state assessment result and / or the historic state assessment result; and determining the charging / discharging priority of the energy storage unit according to the running state adjusting priority and the energy storage unit complete charging / discharging frequency; and charging / discharging the energy storage unit according to the charging / discharging priority of the energy storage unit if determining a fact that the energy storage unit is in an adjustable state according to the first parameter information. Through the control method disclosed by the invention, the battery life is prolonged, and the running stability of the energy storage power station is improved.
Description
technical field [0001] The present disclosure relates to the field of control of energy storage power stations, and in particular to an energy storage power station control method based on state evaluation of energy storage units. Background technique [0002] Energy storage is an existing technical means that can ensure the safe operation of the power grid. The application of energy storage power stations plays an important role in coping with the peak-shaving and valley-filling of the power grid and suppressing the operational uncertainty caused by the grid's connection to new energy power stations. role. The stable operation of the energy storage power station is a prerequisite for playing its role, so improving the reliability, safety and rationality of the energy storage power station operation is the main problem that needs to be solved at present. [0003] At present, there are many research works on energy storage units, such as energy storage battery operation stat...
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IPC IPC(8): H02J3/32H02J3/46G06Q10/06G06Q50/06
CPCG06Q10/06312G06Q10/06315G06Q50/06H02J3/32H02J3/46Y02P90/82
Inventor 陈满彭鹏李勇琦刘邦金伍科钟朝现王一鸣王申强刘春雷白文刘高峰王文辉
Owner SOUTHERN POWER GRID PEAK LOAD & FREQUENCY REGULATION GENERATING CO LTD