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

Volume

1

fYear

2004

fDate

2004

Firstpage

443

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE

Print_ISBN

0-7803-8269-2

Type

conf

DOI

10.1109/APEC.2004.1295846

Filename

1295846