Practical control implementation of a three- to single-phase online UPS

被引：28

作者：

Kim, Eung-Ho ^{[1
]}

Kwon, Jung-Min ^{[1
]}

Park, Jae-Kyu ^{[1
]}

Kwon, Bong-Hwan ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Elect & Elect Engn, Pohang 790784, South Korea

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2008年 / 55卷 / 08期

关键词：

adaptive gain control; charger/discharger; current-limiting technique; online uninterruptible power supply (UPS); power-factor correction (PFC);

D O I：

10.1109/TIE.2008.918476

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A high-performance three- to single-phase online uninterruptible power supply (UPS) is proposed. The proposed UPS is composed of a rectifier, a battery charger/discharger, and an inverter. The rectifier has the capability of power-factor correction and regulates a dc-link voltage. When the rectifier becomes unavailable or when the current required by the load exceeds the output rating of the rectifier, the charger/discharger supplies the power demanded by the load to a dc-link capacitor. The inverter provides a regulated sinusoidal output voltage and limits an output current under an impulsive load. New control algorithms of the rectifier, the charger/discharger, and the inverter are proposed. The proposed algorithms of the rectifier and the charger/discharger improve dynamic performance at step load change. To improve the transient response of the output voltage at outage of an input source, a mode change method of the charger/discharger is also proposed. Additionally, the proposed current-limit algorithm of the inverter can be implemented without additional hardware, and it increases the reliability of the UPS.

引用

页码：2933 / 2942

页数：10

共 22 条

[1] Three-phase rectifier with near sinusoidal input currents and capacitors connected on the AC side [J].

Alexa, Dimitrie ;

Sirbu, Adriana ;

Lazar, Alexandru .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2006, 53 (05) :1612-1620

[2]

Bekiarov SB, 2003, IEEE POWER ELECTRON, P451

[3] Uninterruptible power supplies: Classification, operation, dynamics, and control [J].

Bekiarov, SB ;

Emadi, A .

APEC 2002: SEVENTEENTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1 AND 23, 2002, :597-604

[4]

BURGOS RP, 1998, P ISIE 98 IEEE INT S, V1, P321

[5] Analysis and design of iterative learning control strategies for UPS inverters [J].

Deng, Heng ;

Oruganti, Ramesh ;

Srinivasan, Dipti .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2007, 54 (03) :1739-1751

[6] Repetitive. based controller for a UPS inverter to compensate unbalance and harmonic distortion [J].

Escobar, G. ;

Valdez, A. A. ;

Leyva-Ramos, J. ;

Mattavelli, P. .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2007, 54 (01) :504-510

[7] Multiple output AC/DC converter with an internal DC UPS [J].

Fernández, A ;

Sebastián, J ;

Hernando, MM ;

Martín-Ramos, JA ;

Corral, J .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2006, 53 (01) :296-304

[8]

GHOSH R, 2003, P IEEE PESC, P1306

[9] Uninteruptible Power Supply Systems Provide Protection [J].

Guerrero, Josep M. ;

Garcia De Vicuna, Luis ;

Uceda, Javier .

IEEE INDUSTRIAL ELECTRONICS MAGAZINE, 2007, 1 (01) :28-38

[10]

*IEC, 1999, 620403 IEC

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