摘要
基于输出电流方向换流策略的不足,提出了采用基于输入相电压的电压法安全换流策略,并将四步换流减少为三步以提高波形质量。在此基础上设计了用4片复杂可编程逻辑器件(Complex Programmable Logic Device,简称CPLD)实现电压法三步换流,最后通过DS1005硬件仿真平台实验,验证了该设计的可靠性。
This paper analyzes the disadvantage of current-based commutation strategy, and proposes reliable inputvoltage-based commutation strategy.In order to enhance the output waveform quality, four-step commutation is reduced to three-step commutation.Also this paper designs a system hardware of four pieces of Complex Programmable Logic Devices （CPLD） to implement the commutation strategy.Finally, through the DS1005 hardware simulation platform, this design is proved to be reliable.
出处
《电力电子技术》
CSCD
北大核心
2007年第3期47-48,63,共3页
Power Electronics
基金
中国矿业大学科技基金资助项目(E200427)~~
关键词
变换器
换流
矩阵/三步换流
converter
commutation
matrix / three-step commutation
