State of Charge Balancing Control of a Multi-Functional Battery Energy Storage System Based on a 11-Level Cascaded Multilevel PWM Converter

Songcen Wang, Remus Teodorescu, Lászlo Máthé, Erik Schaltz, Paul Dan Burlacu

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

5 Citations (Scopus)

Abstract

This paper focuses on modeling and SOC (State of Charge) balancing control of lithium-ion battery energy storage system based on cascaded multilevel converter for both grid integration and electric vehicle propulsion applications. The equivalent electrical circuit model of lithium-ion battery module is established based on the relationship between SOC (State of Charge) and OCV (Open Circuit Voltage) which is obtained from the battery charge and discharge test curves. A hierarchical control structure is proposed to realize different operating modes. The decoupled current control scheme is adopted to control active power and reactive power independently, and the zero-sequence voltage injection and a sorting and select algorithm are employed for SOC balancing control. The simulation results have been carried out with PLECS Simulation Software and are presented to validate the SOC control schemes.
Original languageEnglish
Title of host publicationProceedings of 2015 International Conference on Optimization of Electrical & Electronic Equipment (OPTIM)
Number of pages7
PublisherIEEE Press
Publication dateNov 2015
Pages336 - 342
DOIs
Publication statusPublished - Nov 2015
Event2015 International Aegean Conference on Electrical machines and Power Electronics ACEMPOPTIM- ELECTROMOTION Joint Conference - Side, Side, Turkey
Duration: 2 Sep 20154 Sep 2015
Conference number: 1
http://www.acemp-metu.com/Pages/Home

Conference

Conference2015 International Aegean Conference on Electrical machines and Power Electronics ACEMPOPTIM- ELECTROMOTION Joint Conference
Number1
LocationSide
Country/TerritoryTurkey
CitySide
Period02/09/201504/09/2015
Internet address

Keywords

  • Battery energy storage system
  • State of charge
  • Battery modeling
  • Cascaed multilevel converter
  • Zero sequence voltage injection

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