基于DSP的三相空间矢量脉宽调制整流器研究

摘要

阐述了空间矢量脉宽调制( SVPWM)在电压型整流器(VSR)运用中的基本原理及控制策略,分析得出SVPWM控制可实现高功率因数整流,通过Matlab搭建仿真模型,得出仿真结果.给出了基于DSP实现的三相PWM整流器双闭环控制系统的设计方案,搭建了基于TMS320F2812型DSP控制芯片的VSR实验平台,并给出原理样机的设计方法,实验结果表明该控制策略可行,且实现了单位功率因数控制.%The article describes the fundamental principle and the control strategy of the voltage source rectifier (VSR) based on space vector pulse width modulation(SVPWM) control.lt achieves high power factor rectifier according to theory analysis.By using Matlab.the system is built and came to some conclusion.A method of three-phase PWM rectifier double loop control system based on DSP is proposed.Tlie experimental results of VSR based on TMS320F2812 DSP controller chip show that the proposed control strategy is feasible,and it realizes unity power factor rectifier function.