Three-phase PWM-switched autotransformer voltage-sag compensator based on phase angle analysis

Muhamad Mansor, Nasrudin Abd Rahim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Many voltage sag compensators have been introduced, including the traditional dynamic voltage restorer (DVR), which requires an energy storage device but is inadequate for compensating deep and long-duration voltage sags. The AC-AC sag compensators introduced next do not require a storage device and they are capable of compensating voltage sags. This type of compensator needs an AC-AC converter to regulate the output voltage. Presented in this paper is a three-phase PWM-switched autotransformer voltage sag compensator based on an AC-AC converter that uses a proposed detection technique and PWM voltage control as a controller. Its effectiveness and capability in instantly detecting and compensating voltage sags were verified via MATLAB/Simulink simulations and further investigated through a laboratory prototype developed with a TMS320F2812 DSP as the main controller.

Original languageEnglish
Pages (from-to)897-903
Number of pages7
JournalJournal of Power Electronics
Volume11
Issue number6
DOIs
Publication statusPublished - Nov 2011

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All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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