基于滑膜控制的三相可逆PWM整流器的研究

doi:10.11799/ce201403035

煤炭工程 ›› 2014, Vol. 46 ›› Issue (3): 112-114.doi: 10.11799/ce201403035

基于滑膜控制的三相可逆PWM整流器的研究

朱忠鹏

安徽理工大学电气与信息工程学院

收稿日期:2013-06-04 修回日期:2013-06-11 出版日期:2014-03-14 发布日期:2014-03-15
通讯作者: 朱忠鹏 E-mail:zhuzhongpeng1985@163.com

The Research of Three-phase Reversible PWM Recitifer Based on Sliding-mode Control

Received:2013-06-04 Revised:2013-06-11 Online:2014-03-14 Published:2014-03-15

摘要/Abstract

摘要：

摘要：分析了三相电压型PWM整流器的基本原理并进行数学建模。针对传统PI双闭环控制系统难以达到良好控制效果问题，研究了一种电压外环为前馈补偿加输出电压反馈控制，电流内环为滑膜变结构的控制策略。该策略利用电压外环维持直流侧电压的稳定和控制整流器的功率流向，电流内环控制PWM整流器的交流侧输入电流跟踪输入正弦电压，实现能量的双向流动和单位功率因数运行。最后，在MATLAB/SIMULINK中进行仿真，结果验证了此控制策略的可行性和有效性。

关键词: 关键词：PWM整流器, 前馈控制, 滑膜控制

Abstract:

Abstract: The basic principle of the three-phase voltage-source PWM rectifier was analyzed and the mathematical model was built.Aiming at the problem that traditional double-loop PI contol is difficult to achieve good contorl effect,a control strategy that the outer control loop is based on feed-forword compensation with output voltage feed-back control and the current-loop is based on sliding-mode control is studied.Using the voltage loop keep the DC voltage stability and control the recitifer’s power flow, and the current loop contorl AC current tracking with the AC voltage’s phase,then the reversible flow of energy and unity power factor are achieved.Finally, simulation results of the MATLAB/SIMULINK show the feasibilty and effectiveness of the contol strategy.

Key words: Key words: PWM rectifier, feed-forward control, sliding-mode control

朱忠鹏. 基于滑膜控制的三相可逆PWM整流器的研究[J]. 煤炭工程, 2014, 46(3): 112-114.