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요약정보
考虑线路运行环境的牵引变流器IGBT寿命评估 / Life Evaluation of IGBT in Traction Converter Considering Line Operating Environment
Resource Type
Academic Journal
Authors
黄先进
;
杜田倩
;
李鑫
;
穆峰
;
HUANG Xianjin
;
DU Tianqian
;
LI Xin
;
MU Feng
Source
电源学报 / Journal of power supply
. 19(4):153-161
Subject
IGBT寿命
变流器
运行环境
运行状态
Language
Chinese
Online Access
Find it @ DONGA
초록
列车在行驶的过程中其自身的运行工况和外界的环境工况都在发生变化.IGBT作为列车变流器的核心器件,列车自身的运行工况会影响变流器的运行工况进而影响IGBT的寿命,环境工况会影响变流器的散热进而影响IGBT的寿命.从牵引计算的角度,考虑速度、加速度、坡度等因素,搭建了电仿真模型;从热计算的角度,考虑变流器散热方式、环境温度等,搭建了热仿真模型.为了让热仿真模型更加贴近实际,基于瞬态双界面法测试了IGBT热参数,并得到当前IGBT的老化程度为6.98%.最终实现了Simulink与PLECS的电热联合仿真,得到了IGBT的损伤度,给出了基于变流器运行工况的IGBT寿命评估流程.
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