Parameter identification of simplified common-mode equivalent circuit for inverter-fed motor drive systems by applying computer-aided optimization software

Yizhanyi Tang, Satoshi Ogasawara, Masatsugu Takemoto, Tsuyoshi Tokiwa, Masaki Kanamori

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This paper deals with common-mode (CM) electromagnetic interference (EMI) in an inverter-fed motor drive system. A simplified CM equivalent circuit including π-type equivalent circuit for the motor winding is proposed by using the waveform of the common-mode current flowing in the ground conductor. Moreover, a parameter identification method applying the computer-aided software modeFRONTIER is proposed to decide objectively the circuit parameters of the proposed simplified equivalent circuit. Validity and effectiveness of the proposed equivalent circuit are confirmed by comparing the measured impedance characteristics with the calculated ones. Finally, the possibility of a nonlinear phenomenon is discussed in this system. It is shown that the accuracy of simulation result can be improved by introducing the nonlinear element.

Original languageEnglish
Pages (from-to)243-249
Number of pages7
JournalIEEJ Transactions on Electrical and Electronic Engineering
Volume11
Issue number2
DOIs
Publication statusPublished - Mar 1 2016
Externally publishedYes

Keywords

  • Common mode
  • Computer optimization
  • EMI
  • Equivalent circuit
  • Inverter-fed motor
  • Nonlinear
  • π-type

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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