混合型级联多电平变换器调制策略研究  

Research on the Modulation Strategy for a Hybrid Multilevel Converter

作　　者：许小兵[1] 姚国顺[1] 吕青[1] 吴保芳[1] 

机构地区：[1]空军雷达学院,湖北武汉430019

出　　处：《通信电源技术》2007年第3期4-7,共4页Telecom Power Technology

摘　　要：多电平变换器的调制策略与其主电路拓扑密切相关。文章首先讨论了几种多电平变换器的拓扑特点,推荐了一种混合型多电平变换器,分析了它的几种调制策略和频谱特性,并进行了电路仿真,比较了它们之间的优劣,给出了连续调制方式下的频谱表达式,仿真验证了结果的正确性,最后总结了几点有用的结论。The modulating strategies of multilevel converters are closely related to its main circuit topology. In this paper, the topology characteristics of several multilevel converters are compared and discussed, and a hybrid multilevel converter are recommended. Several modulating strategies and spectrum characteristics are analyzed. The spectrum expression of continuous modulation is given. Simulation results are presented to discuss their advantages and disadvantages, to certify the validity of the result. In the end, several useful conclusions are summarized.

关 键 词：混合级联多电平变换器 调制策略 频谱特性 拓扑结构 

分 类 号：TM46[电气工程—电器]