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Title: Double-Line-Frequency Ripple Model, Analysis & Impedance Design for Energy Stored Single-Phase Quasi-Z Source Photovoltaic System

Abstract

The battery energy stored quasi-Z-source (BESqZS) based photovoltaic (PV) power generation system combines advantages of the qZS inverter and the battery energy storage system. But, the second harmonic (2ω) power ripple degrades the system’s performance and affects the system’s design. An accurate model to analyze the 2ω ripple is very important. The existing models did not consider the battery, or assumed a symmetric qZS network with L1=L2 and C1=C2, which limits the design freedom and causes oversized impedance parameters. Our paper proposes a comprehensive model for the single-phase BES-qZS-PV inverter system, where the battery is considered and there is no restriction of L1=L2 and C1=C2. Based on the built model, a BES-qZS impedance design method is proposed to mitigate the 2ω ripple with asymmetric qZS network. Simulation and experimental results verify the proposed 2ω ripple model and impedance design method.

Authors:
 [1];  [2];  [3];  [4];  [5]; ORCiD logo [6]
  1. Beijing Jiaotong Univ. (China)
  2. Texas A & M Univ., Doha (Qatar)
  3. Texas A & M Univ., College Station, TX (United States). Dept. of Electrical and Computer Engineering
  4. Texas A & M Univ., Doha (Qatar). Electrical and Computer Engineering Dept.
  5. Texas A & M Univ., College Station, TX (United States). Electrical and Computer Engineering
  6. Siemens Corporation, Princeton, NJ (United States). Corporate Technology
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1394770
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
IEEE Translations on Industrial Electronics
Additional Journal Information:
Journal Volume: PP; Journal Issue: 99; Journal ID: ISSN 0278-0046
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 2ω ripple model; quasi-Z-source inverter; battery energy storage; photovoltaic power system

Citation Formats

Liang, Weihua, Liu, Yushan, Ge, Baoming, Abu-Rub, Haitham, Balog, Robert S., and Xue, Yaosuo. Double-Line-Frequency Ripple Model, Analysis & Impedance Design for Energy Stored Single-Phase Quasi-Z Source Photovoltaic System. United States: N. p., 2017. Web. doi:10.1109/TIE.2017.2750630.
Liang, Weihua, Liu, Yushan, Ge, Baoming, Abu-Rub, Haitham, Balog, Robert S., & Xue, Yaosuo. Double-Line-Frequency Ripple Model, Analysis & Impedance Design for Energy Stored Single-Phase Quasi-Z Source Photovoltaic System. United States. doi:10.1109/TIE.2017.2750630.
Liang, Weihua, Liu, Yushan, Ge, Baoming, Abu-Rub, Haitham, Balog, Robert S., and Xue, Yaosuo. Fri . "Double-Line-Frequency Ripple Model, Analysis & Impedance Design for Energy Stored Single-Phase Quasi-Z Source Photovoltaic System". United States. doi:10.1109/TIE.2017.2750630. https://www.osti.gov/servlets/purl/1394770.
@article{osti_1394770,
title = {Double-Line-Frequency Ripple Model, Analysis & Impedance Design for Energy Stored Single-Phase Quasi-Z Source Photovoltaic System},
author = {Liang, Weihua and Liu, Yushan and Ge, Baoming and Abu-Rub, Haitham and Balog, Robert S. and Xue, Yaosuo},
abstractNote = {The battery energy stored quasi-Z-source (BESqZS) based photovoltaic (PV) power generation system combines advantages of the qZS inverter and the battery energy storage system. But, the second harmonic (2ω) power ripple degrades the system’s performance and affects the system’s design. An accurate model to analyze the 2ω ripple is very important. The existing models did not consider the battery, or assumed a symmetric qZS network with L1=L2 and C1=C2, which limits the design freedom and causes oversized impedance parameters. Our paper proposes a comprehensive model for the single-phase BES-qZS-PV inverter system, where the battery is considered and there is no restriction of L1=L2 and C1=C2. Based on the built model, a BES-qZS impedance design method is proposed to mitigate the 2ω ripple with asymmetric qZS network. Simulation and experimental results verify the proposed 2ω ripple model and impedance design method.},
doi = {10.1109/TIE.2017.2750630},
journal = {IEEE Translations on Industrial Electronics},
number = 99,
volume = PP,
place = {United States},
year = {2017},
month = {9}
}

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