Title :
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
fDate :
12/1/1995 12:00:00 AM
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;
Journal_Title :
Industrial Electronics, IEEE Transactions on
