大容量链式电池储能功率调节系统控制策略_毛苏闽.pdf

第 36 卷 第 9 期 电 网 技 术 Vol. 36 No. 9 2012 年 9 月 Power System Technology Sep. 2012 文章编号：1000-3673 （2012 ）09-0226-06 中图分类号：TM 91 ；TM711 文献标志码：A 学科代码：470·4054 大容量链式电池储能功率调节系统控制策略 毛苏闽，蔡旭 （风力发电研究中心(上海交通大学) ，上海市 闵行区 200240 ） Control Strategy for Power Conditioning System of Large Capacity Cascaded Battery Energy Storage System MAO Sumin, CAI Xu (Wind Power Research Center (Shanghai Jiao Tong University), Minhang District, Shanghai 200240, China) ABSTRACT: Large capacity cascaded battery energy storage 交流电压实现相簇内各单元 SOC 均衡。仿真结果表明，采 system (BESS) is one of the effective means to solve the 用该控制策略的 PCS 进行瞬时功率控制时具有较快的动态 problem of grid-connection of renewable energy resource such 响应速度和较小的稳态误差，同时能有效实现 SOC 均衡控 as large-scale wind farm. In allusion to the control strategy for 制，验证了该控制策略的正确性和可行性。 power conditioning system (PCS) of BESS, the proportional 关键词：链式电池储能系统；功率调节系统；瞬时功率控制； resonant (PR) regulator is used to implement the control with 荷电状态均衡控制；比例谐振调节器 zero-steady-state error for instantaneous power in α-β 0 引言 coordinate system; the balancing control of the state of charge (SOC) among clusters, namely the bridge arms of each phase in 风力发电、光伏等可再生能源发电作为最具备 cascaded BESS, is implemented by means of injecting 大规模开发及应用前景的发电方式，技术日趋成 zero-sequence votlage and the SOC balance of units within the 熟，逐渐被广泛应用。可再生能源具有间歇性、波 cluster is realized through adding corresponding AC voltage.