摘要
随着电力电子技术的发展,可逆变流装置得到了广泛应用传统的相控整流器存在功率因数低、输入电流谐波成分高等缺点,影响了电网的供电质量。针时这类非线性负载所产生的负面影响,提出了一种滞环电流控制的新型三相电压型变流器,分析了系统的控制原理,论述了系统的设计过程,运用Psim软件进行仿真分析,采用IGBT作为功率元件,基于DSP构造了一套可逆变流器装置。该装置实现了单位功率因数,并使输入电流为正弦电流。
Comcntional rectifiers have the defects of low power factor and high harmonic which affect the power quality. A novel three-phase voltage souree eonverter with b.vsteresis current control was presented to reduce the negative influence of nonliner load. The system control theory was analyzed and the system designing process was presented. The simulation was realized by using Psim software. The reversible converter was eonslrueted based on DSP and IGBT. The unity power factor and sinusoidal current were achieved in the device. The experimental results were identical to the simulation.
出处
《继电器》
CSCD
北大核心
2005年第16期58-61,共4页
Relay
基金
天津市教委基金项目资助(20030523)
关键词
单位功率因数
变流器
滞环电流控制
unity power factor
converter
hysteresis current control
