Investigating the grounding of EMI filters in power electronics systems

Author

Wang, Shuo ; Maillet, Yoann Yorrick ; Wang, Fred ; Lai, Rixin ; Burgos, Rolando ; Luo, Fang

Author_Institution

Center for Power Electron. Syst., Virginia Polytech. Inst. & State Univ., Blacksburg, VA

fYear

2008

fDate

15-19 June 2008

Firstpage

1625

Lastpage

1631

Abstract

It is difficult to suppress high-frequency common mode (CM) EMI noise in power electronics systems. CM filters are used to suppress CM noise, but their performance is greatly affected by the effectiveness of their grounding. In this paper, the grounding issues for EMI filters, such as the mutual inductance between two grounding paths are discussed. The paper then discusses and analyzes several grounding approaches. Based on this investigation, guidelines for efficient grounding are proposed. Experiments are then carried out to verify the theoretical analysis.

Keywords

earthing; electromagnetic interference; filters; interference suppression; power electronics; EMI filters; grounding; high-frequency common mode EMI noise; mutual inductance; power electronics systems; theoretical analysis; Cable shielding; Circuit noise; Delta modulation; Electromagnetic interference; Grounding; Low pass filters; Motor drives; Power cables; Power electronics; Power filters; EMI filter; grounding; inductive coupling; mutual inductance; one-point ground; two-point ground;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Conference_Location

Rhodes

ISSN

0275-9306

Print_ISBN

978-1-4244-1667-7

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2008.4592173

Filename

4592173