Title

Prediction of Common-Mode Current Reduction using Ferrites in Systems with Cable Harnesses

Abstract

Bulk ferrite chokes are widely used to reduce common-mode (CM) currents on system harnesses. The impact of the ferrite on the CM currents depends on a variety of factors and is difficult to predict. A simple closed-form analytical model of the CM impedance of the ferrite that allows efficient evaluation of the impact of the ferrite is considered. In order to apply this model to a real active power system with cable harnesses, information about the system's CM loop impedance is measured using the minimally-invasive dual current clamp method. The predicted impact of the ferrite on the CM loop impedance of the system and the CM currents on the harness showed reasonable agreement with measurements in both a simple passive test setup and in a real active system.

Meeting Name

2012 IEEE International Symposium on Electromagnetic Compatibility (2012: Aug. 6-10, Pittsburgh, PA)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

Ferrites; Impedance; Current Measurement; Impedance Measurement; Inductors; Analytical Models; Calibration

International Standard Book Number (ISBN)

978-1-4673-2061-0

International Standard Serial Number (ISSN)

2158-110X

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2012 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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