超级电容_蓄电池混合储能拓扑结构与控制策略研究.pdf

第 42 卷 第 2 期 电力系统保护与控制 Vol.42 No.2 2014 年 1 月16 日 Power System Protection and Control Jan.16, 2014 超级电容-蓄电池混合储能拓扑结构和控制策略研究 1 1 2 1 1 桑丙玉 ，陶以彬 ，郑 高 ，胡金杭 ，俞 斌 （1.中国电力科学研究院，江苏 南京 210003； 2.福建省电力有限公司电力科学研究院，福建 福州 350000） 摘要：以超级电容和蓄电池为例，分析了功率型和能量型混合储能不同拓扑结构的优缺点，总结出混合储能拓扑结构选取的 一般原则。基于二级低通滤波，提出根据频谱图确定滤波时间常数的混合储能控制方法，并考虑电池充放电功率限制，对滤 波输出功率进行修正。用 Matlab 对算法平滑实际光伏出力进行了仿真验证，结果证明该算法能够满足光伏并网联络线功率 要求，并使电池充放电功率不越限。 关键词：混合储能；拓扑结构；低通滤波；平滑波动；功率限制 Research on topology and control strategy of the super-capacitor and battery hybrid energy storage 1 1 2 1 1 SANG Bing-yu , TAO Yi-bin , ZHENG Gao , HU Jin-hang , YU Bin (1. China Electric Power Research Institute, Nanjing 210003, China; 2. Fujian Electric Power Co., Ltd, Electric Power Research Institute, Fuzhou 350000, China) Abstract: Taking the super capacitor and battery for example, this paper analyzes advantages and disadvantages of different topology of the power and energy hybrid energy storage, and sums up the general rules of the selection of hybrid energy storage topology. Based on secondary low pass filter, it proposes filter time constant control method of the hybrid energy storage according to the spectrum diagram, and modifies the filtering output power considering the battery charge and discharge power limitation. The algorithm is simulated and verified using Matlab to smooth the actual photovoltaic power. The results show that this algorithm can meet the requirements of the photovoltaic (PV) grid tie line power and make the battery charge and discharge power not out-of-limit. Key words: hybrid energy stor