双三点式整流电路的控制策略及动态过程研究

The researching of control and dynamic process to dualthreepoint power converter

大功率电气传动控制中以及其它电气设备所用到的整流电路通常都是由传统意义上的三相整流电路所形成 .在交直交电气传动控制中 ,整流电路通常用来最大可能地满足被调速电机的电压和调速电机其它电气指标的要求来设计 .本文提出了怎样通过双三点式的控制方法 ,使该整流电路既能满足直流电路的基本电气要求 ,又能使传动控制系统从电网所吸收的无功功率最少 ,同时还要保证控制系统对电网产生尽可能少的谐波干扰 .

The converter was known as the normal threephase converter in the sense of conventional meaning in high power drive systems and other electrical apparatus. In drive control system with dc linkvoltage, it is normaly designed to satisfy, as can as possible, the requirements of dc voltage and other electrical properties for mortor drive with variablespeed. It supplies, in this paper, a converter constructure, which would meet the electrical fundamental requirements of dclink circuit, and absorb less reactive power from power network through this control process of dualthreepoint constructure; in the meantime, this converter makes low hamonics content of line current to power network either in the control system. How to realize these electrical features, and how to get an improved control system for converter is an important content in this paper, it gives also the last research results.