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Modulation and Control of Series/Parallel Module for Ripple-Current Reduction in Star-Configured Split-Battery Applications

Li, Zhongxi and Lizana, Ricardo and Yu, Zhujun and Sha, Sha and Peterchev, Angel V. and Goetz, Stefan M. (2020) Modulation and Control of Series/Parallel Module for Ripple-Current Reduction in Star-Configured Split-Battery Applications. IEEE Transactions on Power Electronics, 35 (12). pp. 12977-12987. ISSN 0885-8993. https://resolver.caltech.edu/CaltechAUTHORS:20200529-073401559

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Abstract

Split-battery converters based on cascaded H-bridges (CHBs) are gaining popularity due to their excellent physical modularity. During operation, however, the batteries experience substantial current ripple. Conventional ripple-current reduction methods rely on bulky passive components or complicated control. This article presents modulation and common-mode voltage injection methods for cascaded double-H-bridge converters (CHB²). The control methods directly mitigate the source of the ripple current—the fluctuating arm power—by exploiting the parallel interconnection across the CHB² arms. In the lab setup, the proposed solution approximately halves the battery current ripple compared to the CHB counterpart. Finally, this article studies component sizing and limitations of the proposed solution.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/tpel.2020.2996542DOIArticle
ORCID:
AuthorORCID
Li, Zhongxi0000-0002-4839-2045
Lizana, Ricardo0000-0001-8348-5258
Yu, Zhujun0000-0001-7427-1952
Sha, Sha0000-0003-4971-6336
Peterchev, Angel V.0000-0002-4385-065X
Goetz, Stefan M.0000-0002-1944-0714
Additional Information:© 2020 IEEE. Manuscript received January 5, 2019; revised April 17, 2019, July 8, 2019, September 12, 2019, and December 11, 2019; accepted May 1, 2020. Date of publication May 20, 2020; date of current version July 31, 2020. The preliminary study “Ripple Current Suppression Methods for Star-Configured Modular Multilevel Converters” was presented on 43rd Annual Conference of the IEEE Industrial Electronics Society, Beijing, 2017. This work was supported in part by the National Science Foundation under Grant 1608929, in part by the North Carolina Biotechnology Center under Grant 2016-CFG-8004, in part by a seed grant from the Duke University Energy Initiative, and in part by Fondecyt Regular under Grant 1201344. Recommended for publication by Associate Editor L. Huber.
Funders:
Funding AgencyGrant Number
NSFECCS-1608929
North Carolina Biotechnology Center2016-CFG-8004
Duke UniversityUNSPECIFIED
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1201344
Subject Keywords:Cascaded H-bridge; ripple-current reduction; split-battery converter
Issue or Number:12
Record Number:CaltechAUTHORS:20200529-073401559
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200529-073401559
Official Citation:Z. Li, R. Lizana, Z. Yu, S. Sha, A. V. Peterchev and S. M. Goetz, "Modulation and Control of Series/Parallel Module for Ripple-Current Reduction in Star-Configured Split-Battery Applications," in IEEE Transactions on Power Electronics, vol. 35, no. 12, pp. 12977-12987, Dec. 2020, doi: 10.1109/TPEL.2020.2996542.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103535
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:29 May 2020 15:50
Last Modified:28 Aug 2020 17:15

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