Gunsal, I., Stone, D.A. and Foster, M.P. orcid.org/0000-0002-8565-0541 (2019) Suppressing leakage current for cascaded H-bridge converters in grid-tie renewable energy systems. In: 2019 European Conference on Power Electronics and Applications (EPE'19 ECCE-Europe). 2019 European Conference on Power Electronics and Applications (EPE'19 ECCE-Europe), 02-06 Sep 2019, Genova, Italy. Institute of Electrical and Electronics Engineers (IEEE) ISBN 9789075815306
Abstract
Photovoltaic panels contain parasitic capacitance causing leakage currents in transformerless converters, which raises safety concerns and reduces system performance. This work presents a common-mode equivalent circuit for Cascaded H-Bridge (CHB) converters with symmetrical filter configuration. In this paper, we develop a novel modulation technique for CHB multilevel converter, which can suppress the leakage current. The simulation and experimental results for standard phase shifted pulse width modulation and novel leakage reduction pulse width modulation (LRPWM) are provided. It is found that LRPWM is more effective in suppressing leakage current and conforms VDE-0126-1-1 German leakage current standard.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 European Power Electronics and Drives Association & the Institute of Electrical and Electronics Engineers (IEEE). |
Keywords: | Multilevel Converters; Modulation Strategy; Pulse Width Modulation (PWM); Renewable Energy Systems; Photovoltaics |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 25 Oct 2019 13:36 |
Last Modified: | 25 Oct 2019 13:36 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
Refereed: | Yes |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:151528 |