中国电机工程学报Issue(3)：317-324,8.DOI:10.13334/j.0258-8013.pcsee.2014.03.001
用于混合储能平抑光伏波动的小波包-模糊控制
Wavelet Packet-fuzzy Control of Hybrid Energy Storage Systems for PV Power Smoothing
摘要
Abstract
In this paper, a hybrid energy storage system consisting of energy-type storage system and power-type storage system is used to smooth the PV power generation fluctuations. With a comprehensive analysis of the amplitude-frequency characteristics of PV power signal and the performances characteristics of different energy storage systems, the PV power signal is decomposed and the smoothing objective power and the charging and discharging power of energy storage systems are obtained by wavelet packet decomposition which can get more signals’ detail information. Full consideration is given to the real-time control requirements for computing speed in practical application, and the filter delay effect is compensated through threshold judgment. SOC adaptive control of power-type storage system using fuzzy control method is applied to achieve optimal allocation and improve smoothing result. Numerical results show that the proposed control strategy can smooth the PV power generation fluctuations effectively by taking full advantages of the performance benefits of different types of energy storage systems.关键词
光伏发电/平抑功率波动/小波包/模糊控制/能量型储能/功率型储能/荷电状态Key words
PV power generation/smoothing power fluctuations/wavelet packet/fuzzy control method/energy-type storage system/power-type storage system/state of charge (SOC)分类
信息技术与安全科学引用本文复制引用
吴振威,蒋小平,马会萌,马速良..用于混合储能平抑光伏波动的小波包-模糊控制[J].中国电机工程学报,2014,(3):317-324,8.基金项目
国家高技术研究发展计划(863计划)(2012AA050203)；国家自然科学基金项目(51277157)。The National High Technology Research and Development of China (863 program)(2012AA050203) （863计划）
Project Supported by National Natural Science Foundation of China (51277157) （51277157）
