无刷直流电机单相电压暂降敏感度分析  

Dynamic Characteristics of DC Motor Under Voltage Sag

作　　者：周皓[1] 

机构地区：[1]三峡电力职业学院,湖北宜昌443002

出　　处：《大电机技术》2008年第4期26-29,共4页Large Electric Machine and Hydraulic Turbine

摘　　要：电压暂降是目前动态电能质量问题中最严重也是最受关注的问题之一,特别是对工业应用场合中广泛使用的可调速驱动设备。而单相电压暂降又是其中最常见的故障。本文对电压暂降问题作了简要介绍,引入了电压暂降敏感度的概念,对工业生产中大量采用的无刷直流电机驱动在不同电压暂降条件下的动态特性进行了软件仿真和分析,并提出了解决电压暂降问题的主要途径。Voltage sag is one of the most serious dynamic power quality problems, especially to those ASD devices widely used in current industry applications. Therefore it attracts the most attention of researchers. Single-phase voltage sag is one of the most frequent problems. In this paper, we briefly introduce the voltage sag problem, and the equipment sensitivity to voltage sag. Then we make some simulation and analysis on the performance of the widely used brushless DC motor driver under different voltage sag situation with MATLIB. Finally we give some advices on how to deal with voltage sag problems.

关 键 词：电压暂降 负荷敏感度 可调速驱动 无刷直流电机 

分 类 号：TM33[电气工程—电机]