A finite element method for transient analysis of power electronic motor drives including parasitic capacitive effect and external circuit

Weinong Fu, Siu Lau Ho

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)


A two dimensional (2-D) finite element method (FEM) of transient electromagnetic field for modeling power electronic motor drives is presented. The proposed method takes into account the parasitic capacitive effect and can be coupled with arbitrarily connected circuits. The FEM formulation which includes the displacement current in the direction of the modelpsilas depth is deduced. The displacement current effect in the plane of the solution domain is represented by coupling the circuit of capacitances into the FEM equations. By introducing additional unknowns, the final set of the system equations has a symmetrical coefficient matrix. A method using electric charge as an excitation for the computation of the capacitance matrix is also proposed for reducing the computation time. The developed algorithm has been applied to simulate systems with power sources having high frequency and/or high dv/dt.
Original languageEnglish
Title of host publicationEMC 2008 : IEEE International Symposium on Electromagnetic Compatibility, 2008, 18-22 Aug. 2008, Detroit, MI
Number of pages6
ISBN (Electronic)9781424416981
Publication statusPublished - 2008
Event2008 IEEE International Symposium on Electromagnetic Compatibility, EMC 2008 - Detroit, MI, Germany
Duration: 18 Aug 200822 Aug 2008

Publication series

NameIEEE International Symposium on Electromagnetic Compatibility
ISSN (Print)1077-4076


Conference2008 IEEE International Symposium on Electromagnetic Compatibility, EMC 2008
CityDetroit, MI


  • Circuit
  • Displacement current
  • Electromagnetic field
  • Finite element method
  • Motor
  • Parasitic capacitance
  • Power electronic
  • Transient

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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