多重联结大功率直流电源控制策略研究  

Control strategy of high power multiple connection dc power

作　　者：焦文良[1,2] 王旭东[1] 那日沙[1] 周凯[1] 隋鑫[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150080 [2]黑龙江科技大学电气与控制学院,黑龙江哈尔滨150027

出　　处：《电机与控制学报》2016年第5期53-59,共7页Electric Machines and Control

基　　金：哈尔滨市应用技术研究与开发项目(2015RAQXJ058)

摘　　要：大功率直流调速电源为提高功率因数采用顺序控制的多重联结整流器,但浅度控制时谐波较大,给电网带来了不容忽视的谐波危害,采用对多重联结整流器在顺序控制和同步控制时的输入侧电流的基波、谐波、谐波总畸变率、基波因数、功率因数等进行了波形及理论的对比分析方法,给出计算公式,得到了减小谐波的最佳控制策略。经过仿真与实验证明对于多重联结的大功率整流器的控制在深度控制时采用顺序控制,浅度控制时采用同步控制(并行控制)是大功率多重联结整流器的最佳控制策略,能实现在功率因数不变的前提下大幅度减小谐波。High power DC speed control power supply which can improve the power factor is a kind of multiple connection rectifier using sequential control, but it brings the grid large harmonic which cannot be ignored in shallow control.Wave and theory of the input side current,harmonic, total factor of harmon-ic distortion, fundamental wave factor and power factor were contrastively analyzed.Moreover, the best control strategy of reducing harmonic was also proposed through the calculating formula.For the control of high power multiple connection rectifier, the best control strategy is to use sequential control in depth control and synchronous control （ parallel control） in shallow control which proved by simulation and ex-periment.In this method, harmonic is greatly reduced but the power factor is the same.

关 键 词：功率因数 多重联结 顺序控制 谐波 

分 类 号：TM921[电气工程—电力电子与电力传动]