Modeling, analysis, and impedance design of battery energy stored single-phase quasi-Z source photovoltaic inverter system

Weihua Liang, Baoming Ge, Yushan Liu, Haitham Abu-Rub, Robert Balog, Yaosuo Xue

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

13 Citations (Scopus)

Abstract

The battery energy stored quasi-Z-source (BES-qZS) based photovoltaic (PV) power generation system combines advantages of the qZS inverter and the battery energy storage system. However, the second harmonic (2ω) power ripple will degrade the system's performance and affect the system's design. An accurate model to analyze the 2ω ripple is very important. The existing models did not consider the battery, and with the assumption L1=L2 and C1=C2, which causes the non-optimized design for the impedance parameters of qZS network. This paper proposes a comprehensive model for single-phase BES-qZS-PV inverter system, where the battery is considered and without any restriction of L1, L2, C1, and C2. A BES-qZS impedance design method based on the built model is proposed to mitigate the 2ω ripple. Simulation and experimental results verify the proposed 2ω ripple model and design method.

Original languageEnglish
Title of host publicationECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509007370
DOIs
Publication statusPublished - 13 Feb 2017
Event2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016 - Milwaukee, United States
Duration: 18 Sep 201622 Sep 2016

Other

Other2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016
CountryUnited States
CityMilwaukee
Period18/9/1622/9/16

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Keywords

  • 2ω ripple model
  • Battery energy storage
  • photovoltaic power system
  • quasi-Z-source inverter

ASJC Scopus subject areas

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

Cite this

Liang, W., Ge, B., Liu, Y., Abu-Rub, H., Balog, R., & Xue, Y. (2017). Modeling, analysis, and impedance design of battery energy stored single-phase quasi-Z source photovoltaic inverter system. In ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings [7855265] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2016.7855265