考虑SOC一致性的锂电池储能系统功率分配策略  

Power Distribution Strategy of Li-BESS Considering SOC Consistency

作　　者：胡斌 黄一鸣 陈国璋 

机构地区：[1]深圳市科陆电子科技股份有限公司,广东深圳518000 [2]国网冀北电力有限公司,北京100053

出　　处：《华北电力技术》2017年第12期20-25,共6页North China Electric Power

摘　　要：研究储能系统辅助AGC调频时存在的SOC运行差异问题,提出了一种考虑SOC一致性的锂电池储能系统功率分配策略,将可充放电量引入功率分配的目标函数,在功率约束以及机组出力上下限约束下进行在线优化,使各机组的SOC在充放电过程中逐渐趋于一致。最后,基于Matlab进行仿真,验证了上述方案的可行性和有效性。This paper studies the problem of SOC operation difference in energy storage system for AGC auxiliary fre- quency regulation. A power distribution strategy for a lithium battery energy storage system considering S0C consis- tency is proposed. Charge-discharge capacity is added into objective function to achieve optimization under the power constraint and the upper and lower bound of unit power, make the SOC of each Li-battery tend to be consistent during charging and discharging. Finally,the simulation based on Matlab verifies the feasibility and effectiveness of the pro- posed scheme.

关 键 词：储能 功率分配 SOC 

分 类 号：TM911[电气工程—电力电子与电力传动]