摘要
有源电力滤波器在抑制电网谐波、提高电能质量方面有良好的应用前景。提高有源电力滤波器的装置容量是应用中有待解决的关键技术问题之一。文中在综合国内外目前实现大容量有源电力滤波器方法的基础上 ,介绍了一种采用多个模块化 PWM主电路单元组合实现的大容量并联型有源电力滤波器 ,给出了该有源电力滤波器的主电路结构拓扑 ,分析了系统的工作原理及控制方法 ,并对在实现该装置时所遇到的问题进行了讨论。工业现场实验结果表明 ,采用该方法实现的有源电力滤波器有着良好的补偿特性 ,有效地解决了有源电力滤波器在大容量时器件与装置容量之间的矛盾。
Active power filter has a good application foreground on decreasing harmonics and improving the power quality. How to increase the volume of the active power filter is one of the key problems in practice. Based on the existing methods of realizing large volume active power filter, a new large volume active power filter is introduced. The main circuit of the large volume active power filter consists of multiple modularized PWM converters. The topology structure of main circuit, system principles and control methods are described, and the exceptional problems are also discussed. The experiment results show that the large volume active power filter in use of multiple modularized PWM has good effects on decreasing harmonics and it effectively solves the contradiction between frequency and volume.
出处
《电力系统自动化》
EI
CSCD
北大核心
2002年第16期45-47,61,共4页
Automation of Electric Power Systems
基金
国家自然科学基金重点资助项目 (5 9737140 )
