IGBT串聯(lián)用的有源電壓控制技術(shù)

摘要：IGBT有源電壓控制技術(shù)（Active Voltage Control，簡稱AVC），是在IGBT控制過程中引入多重閉環(huán)反饋，使IGBT開通和關(guān)斷過程中集電極-發(fā)射極電壓VCE的軌跡始終跟隨預(yù)先設(shè)定的參考信號(hào)，實(shí)現(xiàn)高壓應(yīng)用時(shí)IGBT器件直接串聯(lián)的同步工作和有效均壓。本文介紹了有源電壓控制技術(shù)的基本概念，串聯(lián)IGBT的實(shí)驗(yàn)波形和相應(yīng)的損耗計(jì)算。 敘詞：IGBT 串聯(lián) 驅(qū)動(dòng) 均壓 有源電壓控制 Active Voltage Control Abstract：The so-called IGBT AVC technology is something that during the IGBT control process, various layers of closed loop reaction is introduced to ensure that the pathway of collector-emitter voltage VCE　during the process of On-Off of the IGBT follows the predefined referential signal, to realize synchronous function and effective voltage-sharing when IGBT components are connected in series with the high-voltage application. The article introduces basic concepts of AVC, experimental wave of IGBT connected in series and related loss calculation. Keyword：IGBT, Connection in series, Drive, Voltage sharing, Active voltage control