Improvement of multilevel inverters battery-balancing performance

Chia Hsuan Wu, Liang Rui Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper, an enhanced-battery-balancing strategy for seven-level inverter is proposed. There are three separate battery strings as the input voltage, the cascaded multilevel inverter and the digital controller. The output seven-level approximate sinusoidal waveform is produced by controlling the conduction period of different levels. The advantages of the proposed multilevel inverter are reducing the switching loss and the harmonic content as well as suitable for high-power applications. By proposed battery-balancing discharging strategy, two higher-capacity batteries are discharged to the load and also charge the lowest-capacity battery to prolong the available time of whole battery strings, efficiently use the battery energy and achieve the battery-balancing discharge. A multilevel inverter is designed for the system with the aged batteries to verify its feasibility and excellence. Finally, simulation and experimental results show that the proposed battery-balancing strategy for multilevel inverters actually and efficiently achieves the battery-balancing discharging function.

Original languageEnglish
Title of host publicationApplied System Innovation - Proceedings of the International Conference on Applied System Innovation, ICASI 2015
EditorsArtde Donald Kin-Tak Lam, Stephen D. Prior, Teen-Hang Meen
PublisherCRC Press/Balkema
Number of pages4
ISBN (Print)9781138028937
Publication statusPublished - 2016 Jan 1
EventInternational Conference on Applied System Innovation, ICASI 2015 - Osaka, Japan
Duration: 2015 May 222015 May 27

Publication series

NameApplied System Innovation - Proceedings of the International Conference on Applied System Innovation, ICASI 2015


OtherInternational Conference on Applied System Innovation, ICASI 2015

All Science Journal Classification (ASJC) codes

  • Business, Management and Accounting (miscellaneous)
  • Computer Networks and Communications
  • Computer Science Applications
  • Control and Optimization
  • Control and Systems Engineering
  • Social Sciences (miscellaneous)
  • Electrical and Electronic Engineering

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