Integrated PWM and transformer switching technique for AC voltage regulation

George G. Karady, Pramod Parihar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

This paper presents a novel approach for precise and fast AC voltage regulation. The proposed method integrates switching of transformer taps and AC PWM control to achieve smooth voltage control. This paper presents the results of computer simulations and mathematical analysis made with the proposed voltage regulation concept implemented in a typical distribution system. The electro magnetic transient program (EMTP) was used for computer simulations. This paper demonstrates that the circuit has a good voltage control range and a response time, typically a half cycle. Harmonic analysis of the system bus voltage has shown that the total harmonic distortion produced by the PWM action is small and acceptable. The integrated PWM and transformer tap switching regulator can be implemented with forced commutated switches. A conceptual implementation of the control strategy has also been presented.

Original languageEnglish (US)
Title of host publicationConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
PublisherPubl by IEEE
Pages961-967
Number of pages7
ISBN (Print)0780314565
StatePublished - Jan 1 1994
EventProceedings of the 9th Annual Applied Power Electronics Conference and Exposition - Orlando, FL, USA
Duration: Feb 13 1994Feb 17 1994

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2

Other

OtherProceedings of the 9th Annual Applied Power Electronics Conference and Exposition
CityOrlando, FL, USA
Period2/13/942/17/94

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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