IGBT超音频电源并联逆变器的过载保护  

Over-loading Protection of IGBT Parallel Inverter in Ultra-audio Induction-heating Power Supply

作　　者：王瑞祥[1] 俞立天[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《电力电子技术》2005年第2期62-63,共2页Power Electronics

摘　　要：IGBT是80年代初出现的新一代全控型电力半导体器件,在感应加热领域生产的功率达数百千瓦、频率10～100kHz的IGBT超音频电源,正得到广泛应用.本文主要讨论了用于超音频感应加热电源的IGBT并联逆变器产生过压、过流的原因及采取的过载保护措施.在实践中已验证该保护措施的可靠性,提高了IGBT超音频电源并联逆变器这一感应加热装置的技术性能.IGBT emerged in early 1980s as a new type of entire-control power electronics transistor.The Induction-heating Power Supply(ISP) with power of hundreds kilowatt and frequency between 10～100 kHz is popularly used in induction-heating field.This thesis discusses the reasons for IPs parallel inverter bringing over-voltage or over-current and the protecting steps for over-load.These protecting steps were confirmed in practice and improve performance of IPs parallel inverter induction-heating facilities.

关 键 词：绝缘栅双极晶体管 逆变器/过载保护 

分 类 号：TM46[电气工程—电器]