引用本文:王伟,薛金花,叶季蕾,等.基于SOC调控的用于抑制光伏波动的电池储能优化控制方法[J].电力系统保护与控制,2014,42(2):75-80.
WANG Wei,XUE Jin-hua,YE Ji-lei,et al.An optimization control design of battery energy storage based on SOC for leveling off the PV power fluctuation[J].Power System Protection and Control,2014,42(2):75-80
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基于SOC调控的用于抑制光伏波动的电池储能优化控制方法
王伟1, 薛金花2, 叶季蕾2, 王晓华2, 吴福保2, 杨波2
1.国网公司科技部，北京 100190;2.中国电力科学研究院，江苏 南京 210003
摘要:
针对平抑可再生能源功率波动的应用需求，在低通滤波原理的基础上，根据电池储能的荷电状态（SOC）实时调整滤波时间常数，分析了电池储能的能量与光伏发电功率波动之间的关系，提出了优化配置电池储能的功率和能量的计算方法。这种方法可以通过电池储能在光伏发电系统中的合理配置规划，大大简化电池储能在实际运行中的控制策略，避免电池的过充过放，优化电池运行参数，从而延长使用寿命。在Matlab中搭建了控制仿真模型，结果验证了该方法的可行性。
关键词:  电池储能  能量  滤波时间常数  SOC
DOI：10.7667/j.issn.1674-3415.2014.02.012
分类号:
基金项目:江苏省科技成果转化专项资金（BA2010004）；江苏省科技支撑计划项目（BE2011011）
An optimization control design of battery energy storage based on SOC for leveling off the PV power fluctuation
WANG Wei1, XUE Jin-hua2, YE Ji-lei2, WANG Xiao-hua2, WU Fu-bao2, YANG Bo2
1.Ministry of Science and Technology, State Grid Corporation of China, Beijing 100190, China;2.China Electric Power Research Institute, Nanjing 210003, China
Abstract:
Due to the requirement of leveling off the output power fluctuations, the relationship between the battery energy capacity and PV power fluctuation is analyzed by adjusting the filter time constant according to the state of charge (SOC) based on the low-pass filtering principle, and the optimization design method of battery power capacity and energy capacity is put forward. With the reasonable battery configuration for PV power system, the battery over-charge and over-discharge can be avoided, and the best operation condition and long service life would be obtained. A simulation Matlab model is tested to verify the feasibility of this method.
Key words:  battery energy storage  energy capacity  filter time constant  SOC
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