斩波串级调速系统功率因数的分析  

Analysis of Power Factor for Chopper Cascade Speed Regulation System

作　　者：甄亚[1] 王兵树[1,2] 殷利杰[1] 

机构地区：[1]华北电力大学自动化系,河北保定071003 [2]保定华仿电控有限公司,河北保定071000

出　　处：《电机与控制应用》2009年第2期25-29,共5页Electric machines & control application

摘　　要：对斩波串级调速系统的原理进行了简单介绍,重点分析了斩波串级调速系统的功率因数,并考虑了电机激磁电流、整流桥和有源逆变桥在换向时存在的换向重叠角对系统功率因数的影响。提出了斩波串级调速系统功率因数的计算方法,并利用华仿电控有限公司提供的斩波串级调速系统的仿真模型对该方法的计算结果进行了验证。结果证实了该计算过程的正确性。Firstly, the principle of chopper cascade speed regulation system is simply presented. And then mostly the power factor of chopper cascade speed regulation system is analyzed. In the analysis, the magnetizing current of motor and the commutating angles of diode and controlled rectifiers are taken into account. The calculation methods of power factor for chopper cascade speed regulation system are established , and using simulink model of chopper cas- cade speed regulation system providing for Sinoecon Corporation Limited validates the result of calculation. The results indicate the calculation method is validity.

关 键 词：串级调速 功率因数 斩波控制 

分 类 号：TM921[电气工程—电力电子与电力传动]