一种拓宽PWM整流器调压范围的方法研究  

A Method for Widening Voltage Regulating Range of PWM Rectifier

作　　者：张兴亮 孟光伟[1] 向东[1] 熊浩[1] ZHANG Xingliang;MENG Guangwei;XIANG Dong;XIONG Hao(College of Electrical Engineering,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学电气工程学院,武汉430033

出　　处：《微电机》2020年第3期44-48,54,共6页Micromotors

摘　　要：三相电压型PWM整流器在单位功率因数下工作时,其输出直流电压只能高于交流侧电压峰值,无法实现降压输出。在不改变三相电压型PWM整流器拓扑结构的前提下,研究分析在不同功率因数下,对输出电压调节范围的影响,通过控制交流侧功率因数的方法,实现输出电压调节范围的拓宽。运用Matlab/Simulink软件进行了仿真分析,并采用CompactRIO控制器进行了实验验证,仿真和实验结果表明,通过控制交流侧功率因数,能够有效地拓宽PWM整流输出电压的调节范围。When the power factor of three-phase voltage source PWM rectifier is 1,its output DC voltage can only be higher than the peak value of AC side voltage,so it can not achieve step-down output.Without changing the topology of three-phase voltage source PWM rectifier,the influence of different power factors on the range of output voltage regulation was studied and analyzed.By controlling the power factor of AC side,the range of output voltage regulation can be widened.The simulation analysis was carried out by using the software of Matlab/Simulink,and the experimental verification was carried out by using the CompactRIO controller.The simulation and experimental results show that the adjusting range of the output voltage of the PWM rectifier can be effectively broadened by controlling the power factor of the AC side.

关 键 词：PWM整流器 功率因数 调压范围 CompactRIO控制器 

分 类 号：TM461[电气工程—电器]