考虑蓄电池SOC安全范围的混合储能平抑风光功率波动策略  

Strategy of Hybrid Energy Storage to Stabilize Wind-PV Power Fluctuation Considering Battery SOC Safety Range

作　　者：李卿[1] 杨国华[1,2] 唐浩 王鹏珍[1] 王岳[1] 董晓宁[1] 杨涌涛 LI Qing;YANG Guohua;TANG Hao;WANG Pengzhen;WANG Yue;DONG Xiaoning;YANG Yongtao(Department of Electrical Engineering and Automation, Ningxia University, Yinchuan 750021, China;Ningxia Electric Corporation, Yinchuan 750011, China)

机构地区：[1]宁夏大学电气工程与自动化系,宁夏银川750021 [2]宁夏电力公司电力能源安全自治区重点实验室,宁夏银川750011

出　　处：《现代电力》2018年第3期84-89,共6页Modern Electric Power

基　　金：国家自然科学基金项目(71263043;61763040);宁夏自然科学基金项目(NZ17022);宁夏自治区研究生创新教育计划项目(2014)

摘　　要：风光互补发电系统输出功率的随机性和间歇性会对局部电网的电能质量造成不利影响。为了解决这一问题,本文提出了考虑蓄电池SOC安全运行范围的混合储能平抑功率波动策略,分析了不同滤波器参数对输出功率的影响,提出了滤波器参数选取原则,给出了带有滤波器时间常数在线调整的功率参考值生成图。最终,通过Matlab/Simulink仿真软件搭建了风光-混合储能系统的仿真模型,对SOC在不同阶段下进行了仿真研究,仿真结果验证了所提出控制方法的可行性和有效性。The randomness and intermittency of the output power of wind-PV system have a negative influence on power quality of local network.In order to solve this problem,the strategy of hybrid energy storage to stabilize wind-PV power fluctuation considering SOC safety range is proposed in this paper.The influence of different filter parameters on the output power is analyzed,the selection principle of filter parameters is proposed,and the generation diagram of power reference value with filter time constant that is online adjusted is given.In the end,through the simulation model of the windPV power system built by Matlab/Simulink simulation software,proposed leveling strategy is studied under different stages of SOC.And the feasibility and effectiveness of the proposed control method are verified by the simulation results.

关 键 词：混合储能 平抑波动 SOC控制 风光发电系统 双向DC/DC变换器 

分 类 号：TM619[电气工程—电力系统及自动化]