Mathematical models of a three-level advanced static VAr compensator

Author

Ekanayake, J.B. ; Jenkins, N.

Author_Institution

Centre for Electr. Energy, Univ. of Manchester Inst. of Sci. & Technol., UK

Volume

144

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

201

Lastpage

206

Abstract

Two mathematical models of an advanced static VAr compensator (ASVC) are described. One model was obtained using time-domain analysis of the ASVC circuit and then developed into an s-domain model which was used to study the compensator´s control system. Both models were validated using a three phase, 4 kVAr hardware model of a three-level ASVC. The time-domain model was also validated using computer simulations carried out with the EMTDC program. Two switching strategies were considered in the study: fundamental frequency modulation (FFM) and selective harmonic modulation (SHEM). The time domain model was used to predict the waveforms at various parts of the ASVC circuit, for both switching strategies

Keywords

control systems; digital simulation; frequency modulation; invertors; power engineering computing; power system harmonics; static VAr compensators; time-domain analysis; 4 kVAr; EMTDC program; computer simulations; fundamental frequency modulation; mathematical models; s-domain model; selective harmonic modulation; switching strategies; three phase; three-level advanced static VAr compensator; time-domain analysis; voltage source inverters; waveforms prediction;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings-

Publisher

iet

ISSN

1350-2360

Type

jour

DOI

10.1049/ip-gtd:19970718

Filename

591222