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ZHANG Fengyan,WEI Wen,MENG Chao.Research on Equilibrium Control Strategy for MMC-based Lithium Battery Management System Based on Sub-module Bypass and Locked Access[J].JOURNAL OF POWER SUPPLY,2019,17(1):104-111
Research on Equilibrium Control Strategy for MMC-based Lithium Battery Management System Based on Sub-module Bypass and Locked Access
Received:January 13, 2017  Revised:March 13, 2018
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DOI:10.13234/j.issn.2095-2805.2019.1.104
Keywords:lithium battery  modular multi-level converter(MMC)  equilibrium of battery capacity  bi-directional converter
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AuthorInstitutionEmail
ZHANG Fengyan College of Energy, Xiamen University, Xiamen , China
WEI Wen College of Energy, Xiamen University, Xiamen , China
MENG Chao College of Energy, Xiamen University, Xiamen , China meng@xmu.edu.cn
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Abstract:
      With the development of energy storage technology, lithium battery management system and its control strategies have become hot research topics. Aiming at the lithium battery management system based on modular multi-level converter(MMC), the limitations and constraints of the existing voltage equilibrium control strategy are discussed, and an intelligent equilibrium control strategy based on sub-module bypass and locked access is proposed, with which the fast equilibrium control of battery capacity can be realized under the premise of guaranteeing the equivalent two-level output. Simulation and experimental results verified the feasibility of the proposed control strategy.
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