Generation and suppression of conducted EMI from inverter-fed motor drives

Author

Chen, Shaotang

Author_Institution

Delphi R&D Center, Warren, MI, USA

Volume

3

fYear

1999

fDate

1999

Firstpage

1583

Abstract

This paper focuses on a systematic analysis of the conducted electromagnetic interference (EMI) from an inverter-fed motor drive system. It proposes a theory to explain how the conducted EMI is generated. The theory states that the EMI can be produced from the system by two different mechanisms: parasitic capacitive coupling and inductive load current switching. Each of the EMI mechanisms is discussed in detail. Suppression methods are also suggested to help effectively reduce the EMI emission. Validation of the theory and suppression methods are then performed experimentally based on a brushless PM motor drive

Keywords

AC motor drives; brushless machines; electromagnetic interference; interference suppression; invertors; permanent magnet motors; AC motors; EMI emission reduction; brushless PM motor drive; conducted EMI generation; conducted EMI suppression; conducted electromagnetic interference; inductive load current switching; inverter-fed motor drive system; inverter-fed motor drives; parasitic capacitive coupling; AC motors; Coupling circuits; Electromagnetic analysis; Electromagnetic interference; Inverters; Motor drives; Power harmonic filters; Rectifiers; Research and development; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.805952

Filename

805952