一种基于正弦波电压空间矢量的新型软起动器  

A Novel Soft Starter Based on Sine Wave Voltage Space Vector

作　　者：孟彦京[1] 张陈斌[1] 陈君[1] 解晨[1] 

机构地区：[1]陕西科技大学电气与信息工程学院,陕西西安710021

出　　处：《电力电子技术》2014年第7期28-31,35,共5页Power Electronics

基　　金：陕西省重大科技创新项目(2010ZKC04-06)~~

摘　　要：针对目前软起动器存在着起动电流大、起动转矩低的缺点,研制了一种基于正弦波电压空问矢量的软起动器。该新型软起动器采用传统的三组反并联晶闸管作为主电路结构,构成三相异步电动机软起动控制器,将变频调速控制中的电压空间矢量引入正弦波电压空间矢量的新型软起动中,提出了电压空间矢量软起动技术的新控制算法。将该软起动器与传统的斜坡升压软起动效果进行了比较,实验结果表明:基于正弦波电压空间矢量的软起动器可起动带有一定负载或较大惯性负载的电动机,而且电流保持在较小的值。The soft starter has big starting current and the starting torque is low, so a kind of design of soft starter based on sine wave voltage space vector is developed.The novel soft starter with traditional three groups of anti parallel thyristor as main circuit structure constitute a soft starting controller of three-phase asynchronous motor.The voltage space vector of variable frequency speed control is introduced in sine wave voltage space vector, a new control algo- rithm of soft starting technology of voltage space vector is put forward.To compare the soft starter with the traditional ramp soft starter, the experimental results show that the soft starter based on sine wave voltage space vector can be started with a load or large inertia load motor, and maintained at a smaller current value.

关 键 词：软起动器 正弦波电压空间矢量 变频调速控制 

分 类 号：TM573.6[电气工程—电器]