大功率IGCT 变流器阳极电抗器优化设计方法  

Optimization Design Method for Anode Reactor of High Power IGCT Converter

作　　者：李洪涛[1] 张瀚锐 李子衿 李晓光 LI Hong-tao;ZHANG Han-rui;LI Zi-jin;LI Xiao-guang(State Grid Beijing Electric Power Company,Beijing 100031,China;Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]国网北京市电力公司,北京100031 [2]清华大学,电机工程与应用电子技术系,北京100084

出　　处：《电力电子技术》2025年第3期116-120,共5页Power Electronics

基　　金：国家电网公司总部科技项目(5400-20221150-7A-3-0-SF)。

摘　　要：集成门极换流晶闸管(IGCT)在实际使用场景中需要在电压直流母线与器件之间串联阳极电抗器以限制器件开关过程中的电流变化率。本文首先对IGCT开关暂态换流过程进行分析,研究阳极电抗器在此过程中的充放电机理。在此基础上,通过建立IGCT开通和关断损耗、二极管关断损耗以及箝位电路损耗的数学模型,对阳极电抗器的参数与各部分损耗之间的关系进行分析,提出一种兼顾电流变化率抑制与电路损耗优化的阳极电抗器设计方法。实验验证了理论分析的正确性和所提方法的可行性。For integrated gate commutated thyristor(IGCT),an anode reactor must be serially connected between the DC voltage bus and the device to limit the current change rate during the device’s switching process.This article initially examines the transient commutation process IGCT and investigates the charging and discharging mechanisms of anode reactors during this process.Building on this,by developing mathematical models for IGCT turn-on and turn-off losses,diode turn-off losses,and clamp circuit losses,the study analyzes the relationship between the anode reactor's param-eters and the losses of each component.It proposes a design method for the anode reactor that optimizes both current change rate suppression and circuit losses.Experiments have confirmed the theoretical analysis's accuracy and the proposed method's feasibility.

关 键 词：集成门极换流晶闸管 阳极电抗器 损耗 设计 

分 类 号：TN34[电子电信—物理电子学]