三相PWM整流器直接电流控制中进行SAP WM调制的新方法  

A new method for SAPWM in direct current control of PWM rectifier

作　　者：李杰[1] 陈国呈[1] 王得利[1] 马祎炜[1] 

机构地区：[1]上海大学,上海市电站自动化技术重点实验室,上海200072

出　　处：《电工电能新技术》2007年第4期36-40,共5页Advanced Technology of Electrical Engineering and Energy

基　　金：教育部博士学科点专项科研基金资助项目(20060280018);上海市教委重点科研项目基金资助项目(06ZZ03);上海市科委登山计划项目(NO.06DZ12211);上海市重点学科建设项目(NO.T0103);台达电力电子科教发展基金(NO.DREO2006017)的支持

摘　　要：本文提出一种在PWM整流器直接电流控制中采用零轴谐波注入法进行SAP WM(Saddle Pulse Width Modulation)调制的新方法。利用傅立叶级数分析了SAP WM调制波的谐波成分,并构造了与这些谐波成分相等效的三角波函数。阐述了在零轴注入三角波实现SAP WM的控制方法。仿真和实验结果证明了所提出方法的正确性。SVPWM （space vector pulse width modulation） is often used for improving the utilities of DC bus voltage and decreasing the grid-connected harmonic current in control of three-phase VSR （voltage source rectifier）. However SVPWM is a sort of complicated in algorithm and can not be understood easily. SAPWM （saddle pulse width modulation） is a method of carrier wave modulation that can be understood and realized easily and equivalent to SVPWM actually. Using SAPWM in three-phase VSR direct current control also can achieve the aim of improving the utilities of DC bus voltage and decreasing the grid-connected harmonic current. This paper presents a method which can realize SAPWM in VSR direct current control by using 0-axis harmonic injection. The harmonic components of SAPWM modulation wave are analyzed by Fourier series, and triangle wave equivalent realizing SAPWM by injecting triangle wave from 0-axis is verify the proposed theories. to the harmonic components is constructed. The method of expatiated. The simulation and experiment were presented to verify the proposed theories.

关 键 词：PWM整流器 直接电流控制 SAPWM 零轴谐波注入法 

分 类 号：TM461[电气工程—电器]