Phase angle analysis for PWM-switched autotransformer voltage-sag compensator

Muhamad Mansor, N. A. Rahim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This study proposes a controller for a single- and a three-phase pulse width modulation (PWM) voltage sag compensator. The controller comprises a combination of a new sag detection technique namely phase angle analysis and a PWM voltage controller. The detection technique offers immediate voltage sag detection and compensation even with the presence of phase jump and harmonic content in the input voltage. The controller is then used to control a proposed singlephase and a three-phase voltage sag compensator. The proposed compensator's topology is able to reduce current stress in the switches and able to avoid non-stop operation during sag events. It also plays a role in assisting the system to avoid delay in compensating output voltage. The two systems are designed using MATLAB/Simulink simulation software and verified by a laboratory prototype with a TMS320F2812 as the main controller. Simulation and experimental results are provided to validate the system performance.

Original languageEnglish
Pages (from-to)1882-1891
Number of pages10
JournalIET Power Electronics
Volume5
Issue number9
DOIs
Publication statusPublished - 01 Dec 2012

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Pulse width modulation
Electric potential
Controllers
MATLAB
Switches
Topology

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

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Phase angle analysis for PWM-switched autotransformer voltage-sag compensator. / Mansor, Muhamad; Rahim, N. A.

In: IET Power Electronics, Vol. 5, No. 9, 01.12.2012, p. 1882-1891.

Research output: Contribution to journalArticle

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