Prediction of Common-Mode Current Reduction using Ferrites in Systems with Cable Harnesses
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.
N. G. Bondarenko et al., "Prediction of Common-Mode Current Reduction using Ferrites in Systems with Cable Harnesses," Proceedings of the 2012 IEEE International Symposium on Electromagnetic Compatibility (2012, Pittsburgh, PA), pp. 80-84, Institute of Electrical and Electronics Engineers (IEEE), Jan 2012.
The definitive version is available at http://dx.doi.org/10.1109/ISEMC.2012.6351807
2012 IEEE International Symposium on Electromagnetic Compatibility (2012: Aug. 6-10, Pittsburgh, PA)
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Ferrites; Impedance; Current Measurement; Impedance Measurement; Inductors; Analytical Models; Calibration
International Standard Book Number (ISBN)
International Standard Serial Number (ISSN)
Article - Conference proceedings
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