DC-link capacitor second carrier band switching harmonic current reduction in two-level back-to-back converters

Shen, Lei and Bozhko, Serhiy and Hill, Chris and Wheeler, Patrick (2017) DC-link capacitor second carrier band switching harmonic current reduction in two-level back-to-back converters. IEEE Transactions on Power Electronics . ISSN 0885-8993

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Abstract

This paper proposes an active switching harmonic current reduction method within the DC-link capacitor of two-level, three-phase, back-to-back converters. The method is based on the derived analytical solution for switching harmonic currents in the DC-link. It is shown that by controlling the PWM carrier waveform’s phase angles, the harmonics in the 2nd carrier band of the rectifier and the inverter can be synchronized such that cancellation occurs in the DC-link capacitor. This synchronization is provided by harmonic phase feedback control. The feasibility of the proposed approach has been verified experimentally and results are presented in the paper

Item Type: Article
Additional Information: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works
Keywords: converters, AC-DC power conversion, capacitors, harmonic analysis, switching functions, power quality, pulse-width modulation, testing
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number: 10.1109/TPEL.2017.2706972
Depositing User: Burns, Rebecca
Date Deposited: 30 Aug 2017 09:45
Last Modified: 12 Oct 2017 23:05
URI: http://eprints.nottingham.ac.uk/id/eprint/44164

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