Single-Phase Uninterruptible Power Supply Based on Z-Source Inverter

This paper presents a new topology of uninterruptible power supply (UPS) by using a Z-source inverter, where a symmetrical LC network is employed to couple the main power circuit of an inverter to a battery bank. With this new topology, the proposed UPS can maintain the desired ac output voltage at...

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Bibliographic Details
Published inIEEE transactions on industrial electronics (1982) Vol. 55; no. 8; pp. 2997 - 3004
Main Authors Zhi Jian Zhou, Xing Zhang, Po Xu, Shen, W.X.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.08.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Banks
Batteries
Battery
Circuit topology
Control systems
Costs
Dual loops
Electric batteries
Electric potential
Inverters
Network topology
Power supplies
Pulse width modulation inverters
shoot-through
Switches
Topology
Uninterruptible power supplies
uninterruptible power supply (UPS)
Uninterruptible power systems
UPS
Voltage
Z-source inverter
shoot-through
Z-source inverter
Dual loops
uninterruptible power supply
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Summary:This paper presents a new topology of uninterruptible power supply (UPS) by using a Z-source inverter, where a symmetrical LC network is employed to couple the main power circuit of an inverter to a battery bank. With this new topology, the proposed UPS can maintain the desired ac output voltage at the significant voltage drop of the battery bank with high efficiency, low harmonics, fast response, and good steady-state performance in comparison with traditional UPSs. The simulation and experimental results of a 3-kW UPS with the new topology confirm its validity.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2008.924202