多功能并网逆变器及其在微电网电能质量定制中的应用.pdf

第 36 卷 第 5 期 电 网 技 术 Vol. 36 No. 5 2012 年 5 月 Power System Technology May 2012 文章编号：1000-3673 （2012 ）05-0058-10 中图分类号：TM 464 文献标志码：A 学科代码：470·4031 多功能并网逆变器及其在微电网 电能质量定制中的应用 曾正，赵荣祥，杨欢，汤浩，金磊，朱明磊，汤胜清 （浙江大学电气工程学院，浙江省 杭州市 310027 ） A Multi-Functional Grid-Connected Inverter and Its Application to Customized Power Quality of Microgrid ZENG Zheng, ZHAO Rongxiang, YANG Huan, TANG Hao, JIN Lei, ZHU Minglei, TANG Shengqing (College of Electrical Engineering, Zhejiang University, Hangzhou 310027, Zhejiang Province, China) ABSTRACT: On the basis of analyzing the customized power 量综合评估的层次分析模型，提出了以补偿容量最少为目标 quality of microgrid, the topology of a multi-functional 的最优补偿方法，并利用拉格朗日乘子法进行了求解；最后 grid-connected inverter (MFGCI) and its control strategy are 利用 PSCAD/EMTDC 验证了多功能并网逆变器在微电网电 researched to implement the customization of power quality of 能质量定制方面的可行性和有效性，并从技术性和经济性的 microgrid. Firstly, a concept on customized power quality of 角度探讨了多功能并网逆变器在微电网电能质量定制中的 microgrid is given and the purpose and the meaning of 效益。 proposing this concept is expounded, and a mathematical 关键词：微电网；电能质量定制；多功能并网逆变器；最优 model for MFGCI is built and its control strategy is given; 补偿；层次分析；拉格朗日乘子法 secondly, an algorithm to generate the reference current of MFGCI that is suitable to the customization of power quality of 0 引言 microgrid is put forward; thirdly, a hierarchical analysis model 近年来，集成了可再生能源、局部负荷、储 for synthetical evaluat