Title :
DSP control of high power UPS systems feeding nonlinear loads
Author :
von Jouanne, A. ; Enjeti, P. ; Lucas, D.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
Many facilities, such as patient health care centers, data processing systems, and critical telecommunication links, rely on uninterruptible power supplies (UPS) to maintain a continuous supply of power in case of a line outage. In addition to requiring continuous power, many critical nonlinear loads are sensitive to incoming line transients and input harmonic voltage distortion. Conventional UPS systems operate to protect against such disturbances using complex filtering schemes employing large passive components. This paper presents the advantages of using real time digital signal processing (DSP) control of UPS systems. A DSP controlled UPS inverter and harmonic conditioning system is described and the performance is verified on a 150 kVA system
Keywords :
DC-AC power convertors; digital control; digital signal processing chips; harmonic distortion; invertors; power engineering computing; power system harmonics; power system transients; uninterruptible power supplies; 150 kVA; DSP control; continuous power supply; critical telecommunication links; data processing systems; harmonic conditioning system; high power UPS systems; incoming line transients; input harmonic voltage distortion; inverter; line outage; nonlinear loads; patient health care centers; real time digital signal processing control; uninterruptible power supplies; Control systems; Data processing; Digital signal processing; Medical services; Nonlinear control systems; Power harmonic filters; Power supplies; Power system harmonics; Telecommunication control; Uninterruptible power systems;
Conference_Titel :
American Control Conference, Proceedings of the 1995
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2445-5
DOI :
10.1109/ACC.1995.529299
