A compact seven switches topology and reduced DC-link capacitor size for single-phase stand-alone PV system with hybrid energy storages

Xiong  Liu; Peng  Wang; Poh Chiang  Loh; Frede Blaabjerg; Feng  Gao

doi:10.1109/APEC.2011.5744858

A compact seven switches topology and reduced DC-link capacitor size for single-phase stand-alone PV system with hybrid energy storages

Xiong Liu, Peng Wang, Poh Chiang Loh, Frede Blaabjerg, Feng Gao

AAU Energy

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

9 Citations (Scopus)

Abstract

Single-phase stand-alone PV system is suitable for household applications in remote area. Hybrid battery/ultra-capacitor energy storage can reduce charge and discharge cycles and avoid deep discharges of battery. This paper proposes a compact seven switches structure for stand-alone PV system, which otherwise needs nine switches configuration, inclusive of one switch for boost converter, four switches for single-phase inverter and four switches for two DC/DC converters of battery and ultra-capacitor. It is well-known that a bulky DC-link capacitor is always required to absorb second-order harmonic current caused by single-phase inverter. In the proposed compact topology, a small size DC-link capacitor can achieve the same function through charging/discharging control of ultra-capacitor to mitigate second-order ripple current. Simulation results are provided to validate the effectiveness of the topology and control schemes of the proposed system.

Original language	English
Title of host publication	Proceedings of the 26th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2011)
Number of pages	6
Publisher	IEEE Press
Publication date	Mar 2011
Pages	1920-1925
ISBN (Print)	978-1-4244-8084-5
DOIs	https://doi.org/10.1109/APEC.2011.5744858
Publication status	Published - Mar 2011

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Liu, X., Wang, P., Loh, P. C., Blaabjerg, F., & Gao, F. (2011). A compact seven switches topology and reduced DC-link capacitor size for single-phase stand-alone PV system with hybrid energy storages. In Proceedings of the 26th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2011) (pp. 1920-1925 ). IEEE Press. https://doi.org/10.1109/APEC.2011.5744858

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title = "A compact seven switches topology and reduced DC-link capacitor size for single-phase stand-alone PV system with hybrid energy storages",

abstract = "Single-phase stand-alone PV system is suitable for household applications in remote area. Hybrid battery/ultra-capacitor energy storage can reduce charge and discharge cycles and avoid deep discharges of battery. This paper proposes a compact seven switches structure for stand-alone PV system, which otherwise needs nine switches configuration, inclusive of one switch for boost converter, four switches for single-phase inverter and four switches for two DC/DC converters of battery and ultra-capacitor. It is well-known that a bulky DC-link capacitor is always required to absorb second-order harmonic current caused by single-phase inverter. In the proposed compact topology, a small size DC-link capacitor can achieve the same function through charging/discharging control of ultra-capacitor to mitigate second-order ripple current. Simulation results are provided to validate the effectiveness of the topology and control schemes of the proposed system.",

author = "Xiong Liu and Peng Wang and Loh, {Poh Chiang} and Frede Blaabjerg and Feng Gao",

year = "2011",

month = mar,

doi = "10.1109/APEC.2011.5744858",

language = "English",

isbn = "978-1-4244-8084-5 ",

pages = "1920--1925 ",

booktitle = "Proceedings of the 26th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2011)",

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}

A compact seven switches topology and reduced DC-link capacitor size for single-phase stand-alone PV system with hybrid energy storages. / Liu, Xiong ; Wang, Peng ; Loh, Poh Chiang et al.
Proceedings of the 26th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2011). IEEE Press, 2011. p. 1920-1925 .

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - A compact seven switches topology and reduced DC-link capacitor size for single-phase stand-alone PV system with hybrid energy storages

AU - Liu, Xiong

AU - Wang, Peng

AU - Loh, Poh Chiang

AU - Blaabjerg, Frede

AU - Gao, Feng

PY - 2011/3

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N2 - Single-phase stand-alone PV system is suitable for household applications in remote area. Hybrid battery/ultra-capacitor energy storage can reduce charge and discharge cycles and avoid deep discharges of battery. This paper proposes a compact seven switches structure for stand-alone PV system, which otherwise needs nine switches configuration, inclusive of one switch for boost converter, four switches for single-phase inverter and four switches for two DC/DC converters of battery and ultra-capacitor. It is well-known that a bulky DC-link capacitor is always required to absorb second-order harmonic current caused by single-phase inverter. In the proposed compact topology, a small size DC-link capacitor can achieve the same function through charging/discharging control of ultra-capacitor to mitigate second-order ripple current. Simulation results are provided to validate the effectiveness of the topology and control schemes of the proposed system.

AB - Single-phase stand-alone PV system is suitable for household applications in remote area. Hybrid battery/ultra-capacitor energy storage can reduce charge and discharge cycles and avoid deep discharges of battery. This paper proposes a compact seven switches structure for stand-alone PV system, which otherwise needs nine switches configuration, inclusive of one switch for boost converter, four switches for single-phase inverter and four switches for two DC/DC converters of battery and ultra-capacitor. It is well-known that a bulky DC-link capacitor is always required to absorb second-order harmonic current caused by single-phase inverter. In the proposed compact topology, a small size DC-link capacitor can achieve the same function through charging/discharging control of ultra-capacitor to mitigate second-order ripple current. Simulation results are provided to validate the effectiveness of the topology and control schemes of the proposed system.

U2 - 10.1109/APEC.2011.5744858

DO - 10.1109/APEC.2011.5744858

M3 - Article in proceeding

SN - 978-1-4244-8084-5

SP - 1920

EP - 1925

BT - Proceedings of the 26th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2011)

PB - IEEE Press

ER -

A compact seven switches topology and reduced DC-link capacitor size for single-phase stand-alone PV system with hybrid energy storages

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