单相电压型PWM整流器的设计与研究  

Design and Research of Single-phase Voltage Source PWM Rectifier

作　　者：汪雨[1] 郭育华[1] 樊家明 

机构地区：[1]西南交通大学,磁浮技术与磁浮列车教育部重点实验室,四川成都610031

出　　处：《电力电子技术》2017年第12期76-77,81,共3页Power Electronics

摘　　要：针对传统单相脉宽调制(PWM)整流器电流跟踪控制存在滞后,从而影响电网电能质量的缺点,在传统电压、电流双闭环控制的基础上,引入电压前馈技术,改善了电流跟踪控制性能和PWM整流器的功率因数。详细讨论了PWM整流器电路关键参数的设计,研究了该控制策略下PWM整流器在电机牵引与制动工况时的电流跟踪性能,并搭建了实验平台。实验结果证明了该控制策略的有效性和优越性。Aiming at the hysteresis of traditional single-phase pulse width modulation （PWM） rectifier current tracking control, which affects the power quality of power grid.Based on the traditional double closed-loop control of voltage and current, voltage feed-forward technology is introduced to improve the current tracking control performance and the pow- er factor of PWM rectifier.The key parameters design of PWM rectifier circuit is discussed and the current tracking performance of the PWM rectifier is researched under the operation conditions of traction and braking.Experimental platform is built in laboratory and experimental results demonstrate the superiority and effectiveness of control strategy.

关 键 词：整流器 功率因数 电流跟踪 双闭环控制 

分 类 号：TM461[电气工程—电器]