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Novel Integrated CM Inductor for Single-Phase Power Converters With Reduced EMI

Hedayati, Mohammad H and John, Vinod (2016) Novel Integrated CM Inductor for Single-Phase Power Converters With Reduced EMI. In: IEEE International Transportation Electrification Conference (ITEC), AUG 27-29, 2015, Chennai, INDIA.

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Abstract

Ground leakage current and electromagnetic interference (EMI) noise are important challenges during design of grid-connected power converters. Use of common-mode (CM) choke helps to mitigate these issues. A common practice is to use separate CM filter and differential mode (DM) LCL filter. In this paper an integrated CM inductor (ICMI) is proposed. In the proposed ICMI, the LCL filter boost inductor and the CM choke are combined into a single component. This results in size and cost reduction of the overall power converter. Steps involving design of the ICMI are provided. The proposed ICMI is fabricated in the laboratory. Experimental test are carried out on a 5kW single-phase grid-connected power converter, to validate the effectiveness of the proposed ICMI. The results show that the use of proposed ICMI along with a capacitor C-Mg in the power circuit as common mode filter can reduce EMI noise level up to 30dB.

Item Type: Conference Proceedings
Additional Information: Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Keywords: Electromagnetic interference (EMI); Single-phase power converter; CM choke; LCL filter
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Depositing User: Id for Latest eprints
Date Deposited: 15 Jun 2016 05:05
Last Modified: 15 Jun 2016 05:05
URI: http://eprints.iisc.ac.in/id/eprint/54025

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