A dynamic control method for battery energy storage system based on cloud computing
A battery energy storage system and dynamic control technology, applied in the direction of energy storage, greenhouse gas reduction, climate sustainability, etc., can solve the problems of reduced system stability, uncertain output, increased difficulty of system power balance, etc., to achieve stable The effect of system power fluctuation and maintaining power balance
Active Publication Date: 2021-09-28
国网内蒙古东部电力有限公司经济技术研究院 +3
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Problems solved by technology
[0002] As the proportion of renewable energy in the power system continues to increase, renewable power generation devices such as wind turbines and photovoltaics are affected by the environment. Uncertain output will increase the difficulty of system power balance, resulting in reduced system stability and deterioration of power quality, affecting the safe and stable operation of the system.
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[0036] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0037] A dynamic control method for battery energy storage system based on cloud computing, such as figure 1 shown, including the following steps:
[0038] Step 1: Through the radiation intensity R of the renewable energy power generation system, the real-time wind speed V, the altitude H, the environmental dryness coefficient W, and the battery capacity Q of the battery energy storage system, the SOC parameter S, the operating temperature T of the battery pack, and the internal temperature of the battery pack The resistance r, the real-time current I and the real-time voltage U are collected, and the characteristic values of the above-mentioned parameters collected are...
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The invention provides a dynamic control method for a battery energy storage system based on cloud computing, and relates to the technical field of battery energy storage systems. The present invention collects relevant data that affects the output of renewable energy, and performs three-level independent control on the single battery pack, battery string, and battery pack capacity of the battery energy storage system according to the output power of the current renewable energy source, and stabilizes the power in the power system. Fluctuation, through cloud computing to accurately calculate the electrical quantity of each level, control the grid-connected current, AC and DC circulating current and inductor voltage of each level to achieve dynamic power adjustment of the energy storage system, reduce the power fluctuation of the power system, and improve the system Operational stability: Aiming at the power limitation of multiple battery pack modules in the battery energy storage system, the SOC of the battery modules in the energy storage system is balancedly controlled through cloud computing, so as to realize the dynamic power control of each battery module in the energy storage system. The SOC balance can give full play to the power balance capability of the energy storage system.
Description
technical field [0001] The invention relates to the technical field of battery energy storage systems, in particular to a cloud computing-based dynamic control method for battery energy storage systems. Background technique [0002] As the proportion of renewable energy in the power system continues to increase, renewable power generation devices such as wind turbines and photovoltaics are affected by the environment. Uncertain output will increase the difficulty of system power balance, resulting in reduced system stability and deterioration of power quality, affecting the safe and stable operation of the system. . In order to solve the above problems, the present invention utilizes the characteristics that the battery energy storage system can flexibly respond to system power fluctuations at different time scales, collects the real-time current, voltage, power and other electrical quantities in the energy storage system and aims at the above-mentioned related electrical qu...
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IPC IPC(8): H02J3/32H02J3/24H02J3/38
CPCH02J3/24H02J3/32Y02E70/30
Inventor 康赫然党伟赵树野刘宏扬张昭滕云弓玮王泽镝
Owner 国网内蒙古东部电力有限公司经济技术研究院