摘要
分析了三相PWM整流器基本原理,建立了在三相静止坐标系以及两相旋转坐标系中的数学模型。采用电压电流双闭环控制以及空间电压矢量PWM技术构建了控制系统,探究了负载变化对系统的影响,以及整流器能量可逆的原理。最后通过Matlab/Simulink仿真进行了验证,并搭建了基于TMS2812-DSP的实验平台。仿真及实验结果均表明系统具有良好的动、静态性能,且功率因数接近为1。
The paper analyzed the three-phase PWM rectifier＇s basic principle,and built mathematical model under the three-phase static coordinate axis and rotating coordinate axis.It adopted the closed loop control technology of voltage and circuit,and the control technology of space voltage vector to make up the control system,and studied the influence of variation in load to the system and the principle of energy reversible in rectifier.Finally,it validated the system through the matlab/simulink,and built the experiment system based on TMS2812-DSP.Both the simulation and experiment verify the system has good dynamic and static performance,and nearly to be unit power factor.
出处
《电测与仪表》
北大核心
2011年第9期82-85,共4页
Electrical Measurement & Instrumentation
关键词
PWM整流器
电压空间矢量
双闭环控制
负载扰动
PWM rectifier
space voltage vector
double closed-loop control
the analysis of load disturbances
