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Operation analysis of stress grading system in inverter-driven medium voltage motors

机译:逆变器驱动中压电动机应力分级系统的运行分析

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This paper focuses on analyzing the electric field and temperature distribution in a typical stress grading system used in medium voltage rotating machines under pulse width modulation voltage source conditions. Two analysis models for electric field and heat transfer processes are developed to take into account the nonlinear relationship between the electric field and the electrical conductivity of Silicon Carbide (SiC) semi-conductive tape. The simulation results give a fundamental background to explain the failure of the stress grading system in inverter-driven medium voltage motors.
机译:本文着重分析脉宽调制电压源条件下中压旋转电机中使用的典型应力分级系统中的电场和温度分布。考虑到电场和碳化硅(SiC)半导电带的电导率之间的非线性关系,开发了两种用于电场和传热过程的分析模型。仿真结果为解释变频器驱动的中压电动机中的应力分级系统的故障提供了基础背景。

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