一种新型的级联型多电平逆变器拓扑  

Novel Cascade Multi-level Inverter Topology

作　　者：王鹏帅[1] 韩如成[1] 

机构地区：[1]太原科技大学电子信息工程学院,太原030024

出　　处：《电气技术》2013年第6期33-37,共5页Electrical Engineering

摘　　要：本文介绍了一种新型级联型多电平逆变器拓扑结构,并对其PWM调制算法进行了仿真研究。该拓扑电路与传统的H桥级联型多电平逆变器相比,可以用相对较少的电力电子开关器件实现多电平的输出。该拓扑电路由一系列电平变换单元级联而成,可以减少开关器件的数目及其功率损耗、减小逆变电路的体积、提高逆变效率并具有相对简单的控制系统。最后基于Matlab/Simulink对该拓扑结构的PWM调制方法进行了仿真,仿真结果验证了该拓扑结构的正确性与优越性。This paper introduces a new cascaded multilevel converter topology and made a in-depth study of its PWM modulation algorithm. This multilevel converter topology has many steps with fewer power electronic switches. The proposed topology consists of series-connected sub- multilevel converters blocks. The structure can reduce the switching device and its power loss, reduce the size of the inverter circuit and improve the efficiency of the inverter and has a relatively simple control system. Finally a simulation study of the PWM modulation for the topological structure had been made ,the simulation results verify the correctness and superiority of the topology.

关 键 词：级联型 多电平逆变器 新型拓扑 功率损耗 脉宽调制 

分 类 号：TM464[电气工程—电器]