A Five Level Gird-Connected ANPC Inverter with a Novel Energy Transfer Strategy for Battery Energy Storage Systems

Hamid R. Teymour, Reza Sabzehgar, Mohammad Rasouli, Danny Sutanto, Kashem M. Muttaqi

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

Abstract

This paper presents a new configuration and control technique with a novel energy transfer strategy for gird-connected single-phase energy storage systems using five-level flying capacitor (FC) based active-neutral-point-clamped (ANPC) inverter. The proposed grid-connected energy storage system with eliminated common-mode voltage can use either one or two separate battery modules in the dc-link of the single-phase five-level inverter. By utilizing a proper modulation technique and a novel energy transfer strategy for one battery module on the dc side of the inverter, the dc-link capacitors' average voltage can be maintained balanced with smaller size capacitors. In case of using two separate battery modules in the dc-link of the five-level inverter, even under unequal dc-link voltages, the inverter will have high quality grid side current waveform during charging and discharging of the dc-link batteries. By using this novel energy transfer strategy, the two dc-link battery modules can have different energy transfer rates, which will add flexibility to the control of the system and can be used for battery balancing techniques. The effectiveness of the proposed methodology is investigated through simulation studies in different scenarios.

Original languageEnglish (US)
Title of host publication2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages983-989
Number of pages7
ISBN (Electronic)9781728103952
DOIs
StatePublished - Sep 2019
Event11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States
Duration: Sep 29 2019Oct 3 2019

Publication series

Name2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
CountryUnited States
CityBaltimore
Period9/29/1910/3/19

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All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Teymour, H. R., Sabzehgar, R., Rasouli, M., Sutanto, D., & Muttaqi, K. M. (2019). A Five Level Gird-Connected ANPC Inverter with a Novel Energy Transfer Strategy for Battery Energy Storage Systems. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019 (pp. 983-989). [8912711] (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2019.8912711