Title :
Reduced parts three-phase series-parallel UPS system with active filter capabilities
Author :
Nasiri, A. ; Bekiarov, S.B. ; Emadi, A.
Author_Institution :
Grainger Power Electron. & Motor Drives Lab., Illinois Inst. of Technol., Chicago, IL, USA
Abstract :
In this paper, a new three-phase series-parallel line-interactive uninterruptible power supply (UPS) topology is presented. The new topology has less number of power electronic devices as well as control functions. Most of the power is supplied directly from the AC line to the load. Therefore, the overall efficiency is higher than that of on-line UPS. Different operating modes of the system and series and parallel converters are investigated as well. Simulation and experimental results are presented, which show the viability of the proposed topology.
Keywords :
active filters; switching convertors; uninterruptible power supplies; 1300 W; active filter capabilities; control functions; efficiency; eight switch series-parallel UPS; operating modes; parallel converters; power converters; reduced parts three-phase series-parallel UPS system; series converters; series-parallel line-interactive uninterruptible power supply; twelve-switch series-parallel UPS; Active filters; Bidirectional control; Power electronics; Pulse width modulation inverters; Reactive power; Switches; Switching converters; Topology; Uninterruptible power systems; Voltage;
Conference_Titel :
Industry Applications Conference, 2003. 38th IAS Annual Meeting. Conference Record of the
Print_ISBN :
0-7803-7883-0
DOI :
10.1109/IAS.2003.1257654
