基于复合锁相环的四象限脉冲整流器设计  

Design of Four Quadrant Pulse Rectifier Based on Composite Phase-locked Loop

作　　者：杨平[1] 许建平[1] 张斐[1] 代云中[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《电力电子技术》2010年第9期21-23,共3页Power Electronics

基　　金：中央高校基本科研业务费专项资金资助(SWJTU09-ZT13);国家科技支撑计划课题(2009BAG12A05)~~

摘　　要：分析了四象限脉冲整流器的工作原理及瞬时直接电流控制策略的设计。讨论了硬件锁相环和软件锁相环的优缺点,提出了一种软硬件相结合的复合锁相环设计,实现了网侧输入电压相位和频率的精确跟踪。分析了电网电压扰动对整流器直流侧输出电压的影响,在电网电压扰动10%时直流输出电压经过很小的波动后,迅速达到稳态。实验结果表明,这里设计的脉冲整流器抗干扰能力强,输入电流精确跟踪输入电压,功率因数接近1。The design of four quadrant pulse rectifier for the traction drive system of electric power locomotive is introduced.The principles and instantaneous direct current control strategy of four quadrant pulse rectifier are discussed.Compared with hardware phase-locked loop and software phase-locked loop,a combination of hardware and software composite phase-locked loop is proposed,which can accurately track the phase of line voltage.Effects of the grid voltage disturbance on the rectifier DC output voltage are analyzed,when the grid voltage disturbances in 10%,DC output voltage reaches steady state rapidly after the small fluctuations.The experimental results show that the input current of pulse rectifier has strong anti-interference ability,and can accurately follow the input voltage to achieve high power factor close to 1.

关 键 词：整流器 复合锁相环 瞬时直接电流控制 

分 类 号：TM461[电气工程—电器]