Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 57, Issue 9, Pages 3050-3059Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2009.2037643
Keywords
Electromagnetic-interference (EMI) filter; grounding; inductive coupling; motor drive; mutual inductance; parasitic
Categories
Funding
- SAFRAN Group
- National Science Foundation (NSF) [EEC-9731677]
- Industry Partnership Program
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High-frequency common-mode (CM) electromagnetic- interference (EMI) noise is difficult to suppress in electronics systems. EMI filters are used to suppress CM noise, but their performance is greatly affected by the parasitic effects of the grounding paths. In this paper, the parasitic effects of the grounding paths on an EMI filter's performance are investigated in a motor-drive system. The effects of the mutual inductance between two grounding paths are explored. Guidelines for the grounding of CM EMI filters are derived. Simulations and experiments are finally carried out to verify the theoretical analysis.
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