A single phase uninterruptible power supply system using a bidirectional sinusoidal PWM inverter

Author

Nayar, C.V. ; Ashari, M. ; Keerthipala, W.W.L.

Author_Institution

Centre of Renewable Energy Syst. Technol. Australia, Curtin Univ. of Technol., Perth, WA, Australia

Volume

2

fYear

1998

fDate

1-3 Dec. 1998

Firstpage

671

Abstract

This paper presents an uninterruptible power supply system using a bidirectional sinusoidal PWM inverter. This system offers a smooth transition during grid failure, load voltage stabilisation under varying input grid voltage and lower line current harmonic distortion. The inverter maintains the load voltage and the power flow from the grid by controlling its magnitude and phase angle with respect to the grid. Some preliminary results from computer simulation and laboratory testing are presented in this paper.

Keywords

PWM invertors; failure analysis; harmonic distortion; load flow control; power conversion harmonics; uninterruptible power supplies; voltage control; bidirectional sinusoidal PWM inverter; computer simulation; grid failure; harmonic distortion; load voltage stabilisation; magnitude control; phase angle control; power flow; smooth transition; uninterruptible power supply system; Batteries; Bidirectional control; Harmonic distortion; Inductors; Power supplies; Pulse width modulation inverters; Switches; Topology; Uninterruptible power systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronic Drives and Energy Systems for Industrial Growth, 1998. Proceedings. 1998 International Conference on

Print_ISBN

0-7803-4879-6

Type

conf

DOI

10.1109/PEDES.1998.1330681

Filename

1330681