基于CPLD的级联型多电平变换器PWM脉冲的实现  

A PWM Pulse Generator Design Based CPLD for Cascaded Multilevel Convertor

作　　者：王志华[1] 尹项根[1] 程汉湘[1] 陈锐[1] 

机构地区：[1]华中科技大学

出　　处：《电气传动》2003年第5期28-30,共3页Electric Drive

摘　　要：文章基于级联型多电平变换器的拓扑结构及其 PWM调制技术的特点 ,采用复杂可编程逻辑器件CPL D集成了多个载波可移相的三相 PWM发生器 ,特别适合载波移相 SPWM调制方法的实现。该 PWM发生器既简化了电路的设计 ,提高了系统的可靠性 。On the basis of topology of cascaded multilevel convertor and its PWM modulation technique, a PWM pulse generator adopting Complex Programmable Logic Device (CPLD) is proposed in this article. The generator integrates several carrier phase-shifting three phase PWM generators and especially suits to carrier phase-shifting SPWM modulation method, and has the feature of simplifying circuit-design,guaranteeing reliability of system and concurrent triggering of power devices.

关 键 词：级联型多电平变换器 CPLD 拓扑结构 复杂可编程逻辑器件 PWM 脉冲调制 逆变器 

分 类 号：TM464[电气工程—电器]