级联式变频器的几种多载波控制算法的对比分析  

Comparison and Analysis of Some Multilevel Carrier Arithmetic for Cells Cascaded Converter

作　　者：黄守道[1] 葛照强[1] 叶光辉[1] 徐乐[1] 

机构地区：[1]湖南大学

出　　处：《电气传动》2007年第2期25-28,共4页Electric Drive

摘　　要：在介绍级联式多电平变频器工作原理的基础上,分析概述了几种比较典型的多载波控制算法。通过MATLAB软件进行了系统的建模与各种控制算法的仿真,并进一步对比分析了这些多载波控制算法的性能。仿真结果表明,多载波控制算法能够有效降低共模电压、谐波含量以及输出电压的变化率。这些都为级联式变频器控制算法的选择提供帮助。The work principle of multilevel converter based on cells cascaded was introduced. And then some typical multilevel carrier arithmetics were analyzed and summarized. The building of system module and simulating of these arithmetic was done by MATLAB software. Then their performance was analyzed and compared. The results show that multilevel carrier arithmetic can efficiently reduce common-mode voltage, harmonic and the changing rate of output voltage. These are helpful for selecting the arithmetic of the cells cascaded converter.

关 键 词：多载波 级联 高压变频器 共模电压 

分 类 号：TM921.5[电气工程—电力电子与电力传动]