Electrical and thermal computation of stress grading system in inverter-driven medium voltage motors

Nguyen Nhat Nam, Satoshi Matsumoto

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This paper focuses on analyzing the electric field and the 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.

Original languageEnglish
JournalIEEJ Transactions on Fundamentals and Materials
Volume133
Issue number11
DOIs
Publication statusPublished - 2013

Fingerprint

Electric fields
Electric potential
Silicon carbide
Pulse width modulation
Tapes
Temperature distribution
Heat transfer
Hot Temperature
Electric Conductivity

Keywords

  • Electric field analysis
  • Heat transfer analysis
  • Inverter-driven
  • Nonlinear analysis
  • Partial discharge
  • Stress grading systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

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AB - This paper focuses on analyzing the electric field and the 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.

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