中国电机工程学报2024，Vol.44Issue(9)：3632-3644,中插25,14.DOI:10.13334/j.0258-8013.pcsee.223201
适用于级联型电力电子拓扑电磁暂态仿真的N端口网络通用等效建模方法
A General Equivalent Modeling Method of N-port Networks Suitable for the Electromagnetic Transient Simulation of Cascading Power Electronic Topologies
摘要
Abstract
The complex topology of cascaded power electronic devices brings huge computational pressure to electromagnetic transient simulation.The equivalent modeling method of the common-used modular multilevel converter(MMC)is relatively mature.However,a large number of complex new cascaded topologies have appeared in recent years,and there is still a lack of universal equivalent modeling methods.Therefore,this paper proposes a general equivalent modeling method for power electronic equipment which is suitable for the N-terminal submodule of any topology and cascading in any mode.The port characteristics of the original circuit are extracted by using the form of state space expression,and then the equivalent circuit model is reverse-constructed according to the obtained state space expression.The case study shows that the proposed method can not only improve the simulation efficiency by eliminating the internal nodes of the submodule,but also apply to the customized topology structure and cascading mode of the submodule,which is more flexible and general than the traditional equivalent modeling method.The existing modular multilevel converter(MMC)equivalent modeling method can be regarded as a special case of the general method proposed in this paper.关键词
级联/电力电子/电磁暂态仿真/N端口网络/等效建模Key words
cascaded/power electronic/electromagnetic transient simulation/N-port networks/equivalent modeling分类
信息技术与安全科学引用本文复制引用
徐晋,吴盼,汪可友,高晨祥,李子润..适用于级联型电力电子拓扑电磁暂态仿真的N端口网络通用等效建模方法[J].中国电机工程学报,2024,44(9):3632-3644,中插25,14.基金项目
国家重点研发计划项目(2022YFB2402800) （2022YFB2402800）
国家自然科学基金项目(青年科学基金)(52107113). National Key R&D Program of China(2022YFB2402800) （青年科学基金）
Project Supported by National Natural Science Foundation of China(Young Scientistic Program)(52107113). （Young Scientistic Program）
