A fast power loss calculation method for long real time thermal simulation of IGBT modules for a three-phase inverter system

Z. Zhou, M. S. Khanniche, P. Igic, S. T. Kong, M. Towers, P. A. Mawby

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A fast power losses calculation method for long real time thermal simulation of IGBT module for a three-phase inverter system is presented in this paper. The speed-up is obtained by simplifying the representation of the three-phase inverter at the system modelling stage. This allows the inverter system to be simulated predicting the effective voltages and currents whilst using large time-step. An average power losses is calculated during each clock period, using a pre-defined look-up table, which stores the switching and on-state losses generated by either direct measurement or automatically based upon compact models for the semiconductor devices. This simulation methodology brings together accurate models of the electrical systems performance, state of the art-device compact models and a realistic simulation of the thermal performance in a usable period of CPU time and is suitable for a long real time thermal simulation of inverter power devices with arbitrary load. Thermal simulation results show that with the same IGBT characteristics applied, the proposed model can give the almost same thermal performance compared to the full physically based device modelling approach.

Original languageEnglish
Pages (from-to)33-46
Number of pages14
JournalInternational Journal of Numerical Modelling: Electronic Networks, Devices and Fields
Volume19
Issue number1
DOIs
Publication statusPublished - 19 Dec 2005
Externally publishedYes

Keywords

  • IGBT
  • Modelling
  • Simulation
  • Thermal design
  • Voltage source inverters (vsi)

ASJC Scopus subject areas

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

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