A new UPS scheme provides harmonic suppression and input power factor correction

Author

Wu, Jinn-Chang ; Jou, Hurng-Liahng

Author_Institution

Dept. of Electr. Eng., Kao Yuan Junior Coll. of Technol. & Commerce, Kaohsiung, Taiwan

Volume

42

Issue

6

fYear

1995

fDate

12/1/1995 12:00:00 AM

Firstpage

629

Lastpage

635

Abstract

A new parallel processing uninterruptible power supply (UPS) configuration is proposed in this paper. It provides active power line conditioning to minimize mains current distortion. This performance is superior to a conventional UPS. A prototype has been implemented and tested to verify its performance. The experimental results show that the input power factor of the proposed UPS is nearly unity, and the total harmonic distortion (THD) of the input current under nonlinear loading is only 3.618% for a mains voltage with THD of 1.633%

Keywords

harmonic distortion; load flow; power factor correction; power system harmonics; uninterruptible power supplies; THD; UPS; active power line conditioning; harmonic suppression; input power factor correction; mains current distortion; nonlinear loading; parallel processing; performance; total harmonic distortion; uninterruptible power supply; Batteries; Harmonic distortion; Parallel processing; Pollution; Power factor correction; Power harmonic filters; Power system harmonics; Reactive power; Uninterruptible power systems; Voltage;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.475503

Filename

475503