高功率因素整流器技术综述

High Power Factor Rectifier Technology Summarize

由三菱电机开发研制的MELVEC矢量控制变频调速系统的装置中,采用了具有PWM高功率因数整流的控制技术,并且使用了IGBT、GTO、IGCT等功率器件。提高了功率因数,已被广泛地应用在钢铁(冶金) 行业中。本文简要说明其电路构成的原理,重点介绍和分析了高功率因数的控制技术、控制系统的设计理念,并简述了装置中高次谐波的问题。

PWM high power factor rectifying technology has been adopted in MELVEC vector control Variable-Veloc-ity Variable- Frequency （VVVF） system developed by Mitsubishi. IGBT, GTO, and GCT etc. have been used in this system. It raised the power factor and widely used in metallurgic industry. This paper shows its principle of circuit structure, mainly introduces and analyzes the design concept of high power factor control technology and control system, and describes about harmonic problem briefly.