Analysis of CM Volt-Second Influence on CM Inductor Saturation and Design for Input EMI Filters in Three-Phase DC-Fed Motor Drive Systems

Author

Luo, Fang ; Wang, Shuo ; Wang, Fei ; Boroyevich, Dushan ; Gazel, Nicolas ; Kang, Yong ; Baisden, Andrew Carson

Author_Institution

Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ. (Virginia Tech), Blacksburg, VA, USA

Volume

25

Issue

7

fYear

2010

fDate

7/1/2010 12:00:00 AM

Firstpage

1905

Lastpage

1914

Abstract

Common-mode (CM) choke saturation is a practical problem in CM filter applications. It is generally believed that the leakage inductance of CM chokes makes the core saturated. This paper analyzes two new mechanisms for CM choke saturation due to CM voltage, and these mechanisms are verified in experiment. CM choke saturation is particularly important for motor drive systems, which have a high CM voltage and comparably higher stray grounding capacitance. A model is established to describe the relationship between the CM voltage and the volume of the CM magnetic components. According to the analysis, line impedance stabilization networks (LISNs) play an important role in the design of CM magnetic components.

Keywords

DC motor drives; electromagnetic interference; power filters; common-mode choke saturation; common-mode magnetic components; common-mode volt-second influence; input EMI filters; line impedance stabilization networks; three-phase DC-fed motor drive systems; CM voltage; Common-mode (CM) inductor; volt-second;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2010.2043541

Filename

5420004