Title :
Full digital control of a single-phase series-parallel uninterruptible power supply
Author :
Nasiri, A. ; Emadi, A.
Author_Institution :
Grainger Power Electron. & Motor Drives Lab., Illinois Inst. of Technol., Chicago, IL, USA
Abstract :
In this paper, a new digital deadbeat controller is designed, implemented, and applied to a single-phase series-parallel line-interactive uninterruptible power supply (UPS). In this topology, most of the power is supplied directly from the AC line to the load. Therefore, the overall efficiency is higher than that of the conventional on-line UPS. Current and voltage control of the system in different operating modes are discussed. Simulation and experimental results are presented, which show the viability of the proposed controller for this topology.
Keywords :
active filters; controllers; digital control; electric current control; power supply quality; uninterruptible power supplies; voltage control; AC line; UPS; active filter; current control; digital control; digital deadbeat controller; unified power quality conditioner; uninterruptible power supply; voltage control; Batteries; Bidirectional control; Digital control; Power supplies; Power system reliability; Reactive power; Switches; Topology; Uninterruptible power systems; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE
Print_ISBN :
0-7803-8269-2
DOI :
10.1109/APEC.2004.1295846
