摘要
可变电抗器是电力系统中调压调功控制、谐波治理和无功补偿的关键设备。电力电子电抗器是一种新型的可变电抗器,它采用电磁技术、电力电子技术、控制技术、计算机技术等实现阻抗值的连续可调。这里介绍了电力电子电抗器的拓扑结构,分析了其阻抗变换原理,对其阻抗变换进行了仿真,并将其应用在电机软起动中,给出了实验结果。仿真及实验结果表明,基于电力电子电抗器阻抗可连续变化的特性,可将其应用在电机软起动、无功补偿、谐波抑制等方面,具有良好的应用前景。
The variable reactor is a very important equipment in power system to adjust voltage and power, and it can be used to restrain the harmonics and compensates reactive power.The power electronic reactor is a new variable reactor.It can change reactance smoothly through using electromagnetic technique,power electronics technique,control technique, computer technique and so on.This paper describes the topology structure of the power electronic reactor and analyzes the principle of impedance conversion.The reactor is used in soft start of motor.The simulation and experimental results show that the power electronic reactor can be used in soft start, restraining harmonics, compensating reactive power and has excellent application prospects.
出处
《电力电子技术》
CSCD
北大核心
2012年第2期21-22,29,共3页
Power Electronics
基金
国家科技部科技人员服务企业行动项目(2009-GJD10042)
湖北省科技攻关项目(2006AA101B27)~~
关键词
电抗器
阻抗变换
软起动
power electronic reactor
impedance conversion
soft start
