Title :
Towards a ZHO output impedance UPS system
Author :
Boost, Mike ; Ziogas, Phoivos D.
Author_Institution :
Department of Electrical Engineering, Concordia university, 1455 De Maisonneuve Blvd West., Montreal, Quebec, Canada H3G-1MB
Abstract :
The spectrum of loads requiring clean uninterruptible power has expanded substantially during recent years. Since a number of these loads are unbalanced and/or non-linear, today´s typical UBS can no longer guarantee clean power for a large portion of loads without additives and/or interfacing techniques. This paper provides a categorization of these loads, presents a thorough analysis of their effects, and surveys present partial solutions. Further, this paper presents a topology of a low impRìanop 3-φ high power inverter stage to substantially alleviate the present difficulties UPS´s are faced with when dealing with the new breed of loads.
Keywords :
Harmonic analysis; Inverters; Power harmonic filters; Standards; Switches; Uninterruptible power systems;
Conference_Titel :
Power Electronics Specialists Conference, 1987 IEEE
Conference_Location :
Blacksburg, VA, USA
DOI :
10.1109/PESC.1987.7077220
