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 S. Balog, Yaosuo Xue

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

23 Scopus citations

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
StatePublished - 2016
Event2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016 - Milwaukee, United States
Duration: Sep 18 2016Sep 22 2016

Publication series

NameECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings

Conference

Conference2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016
Country/TerritoryUnited States
CityMilwaukee
Period09/18/1609/22/16

Funding

This publication was made possible by NPRP-EP grant # X-033-2-007 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors

FundersFunder number
Qatar Foundation
Qatar National Research FundNPRP X - 033 - 2 - 007

    Keywords

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

    Fingerprint

    Dive into the research topics of 'Modeling, analysis, and impedance design of battery energy stored single-phase quasi-Z source photovoltaic inverter system'. Together they form a unique fingerprint.

    Cite this