摘要
建立三相电压型PWM整流器的数学模型,并在此基础上针对PWM整流器输入端的相序与电网相序不能匹配问题,通过对整流器输入端的电压、电流相位和内部算法中扇区号排列顺序的分析,提出一种新的三相电源相序调整方法,能有效匹配整流器与电网的相序。最后通过仿真和实际运行验证了该方法的可行性。
The mathematical model of three-phase PWM rectifier is set up,and a problem is found that the phasic sequence of PWM rectifer is not matching with the phasic sequence of power grid,a new method of adjusting phasic sequence about electricity grid is created by analysing the phase of the voltage and current and the sequence of the sector number in arithmetic,and can match the phasic sequence of the PWM rectifer with the power grid in effect.Simulation and experimental results prove the scheme is feasible.
出处
《电力电子技术》
CSCD
北大核心
2010年第11期50-51,86,共3页
Power Electronics
关键词
整流器
耦合
相序
rectifer
coupling
phasic sequence
