电力建设2018,Vol.39Issue(6):125-130,6.DOI:10.3969/j.issn.1000-7229.2018.06.016
用于平抑风电功率波动的电池储能系统控制策略
Control Strategies of Battery Energy Storage Systems for Mitigating Fluctuations of Wind Power Outputs
摘要
Abstract
Integrating a battery energy storage system (BESS) with a wind farm with many wind power units could mitigate the output power fluctuations of the integrated system.Thus,it is an important issue to be addressed to develop an appropriate control strategy of BESS for effectively mitigating the fluctuations of wind power outputs and then maximizing the accommodation capability of the power system concerned for wind power integration.Firstly,the mathematical model of BESS is presented with the structure and characteristics of the integrated system taken into account.An improved control strategy is then proposed with the interactions between the current charging/discharging behavior of BESS and the state of charge (SOC) constraints at the next time slot taken into account,so as to fully make use of the BESS's capacity.And then,an optimal control strategy is developed for minimizing the over-limit probability of combined output power fluctuations from the integrated system,and a highly efficient solver,named AMPL/CPLEX,is employed to solve the optimization model.Finally,an integrated system including a large wind farm and a BESS is employed to demonstrate the performance of the proposed improved control strategy and optimal control strategy.Simulation results show that these two BESS control strategies could effectively mitigate the fluctuations of the combined output power of the integrated system.关键词
电池储能系统(BESS)/风力发电/风电出力波动/控制策略/荷电状态(SOC)Key words
battery energy storage system (BESS)/wind power generation/wind power output fluctuation/control strategy/state of charge (SOC)分类
信息技术与安全科学引用本文复制引用
郭云鹏,王小蕾,文福拴,李梁,毛建伟..用于平抑风电功率波动的电池储能系统控制策略[J].电力建设,2018,39(6):125-130,6.基金项目
国家自然科学基金项目(51177145) (51177145)
国网浙江省电力公司科研项目(5211DF150007)This work is supported by National Natural Science Foundation of China (No.51177145) and State Grid Zhejiang Electric Power Co.,Ltd.,China (No.5211DF150007). (5211DF150007)