## PWM整流装置运行原理分析研究

Title  PWM rectifier operation principle analysis
Abstract
The fact that various types of deflectors are widely used in many Electric power industries, make the pollution of the grid worse. Therefore, Compared to the traditional half-controlled rectifier, PWM Rectifier can improve power factor, reduce harmonic pollution, and can be run in a state of active inverter.
The paper builds the mathematical model in coordinates, based on the understanding of the principles of PWM rectifier, and makes the corresponding coordinate transformation. By comparing several types of control, the paper gives in-depth analysis of the control principle of space voltage vector control method.
Finally, This paper also analyzes the principle of current control strategy, and establishes the direct current control simulation model. And, through simulation of PWM rectifier in SIMULINK environment, the paper masters its topology and operating characteristics, and verifies the feasibility of the control method.

Keywords  three Phase VSR  simulation  double-loop  SVPWM  current control

1  绪论    1
1.1  课题研究背景及意义    1
1.2  PWM整流器的国内外研究现状    2
1.3  本文研究内容    3
2  电压型PWM整流器的结构与建模    4
2.1  PWM整流主电路拓扑结构    4
2.2  PWM整流器运行原理    5
2.3  三相VSR的数学模型分析    7
2.4  主电路参数设计    12
3  三相VSR控制系统设计    15
3.1  控制策略简介及选择    15
3.2  控制系统参数设计    16
4  三相VSR的空间矢量控制    20
4.1  SVPWM的基本原理    20
4.2  三相VSR空间电压矢量分布    20
4.3  SVPWM整流器的控制算法    22
5  MATLAB仿真    26
5.1  MATLAB介绍    26
5.2  PWM整流器模型搭建    26
5.3  PWM整流器仿真波形    29

1  绪论
1.1  课题研究背景及意义

------分隔线----------------------------