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Author Kojori, H.A. ♦ Lavers, J.D. ♦ Dewan, S.B.
Sponsorship IEEE Power Electronics Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1986
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science ♦ Social sciences ♦ Commerce, communications & transportation ♦ Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Modern physics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics ♦ Other branches of engineering
Subject Keyword Stability analysis ♦ Pulse width modulation ♦ Transfer functions ♦ Space vector pulse width modulation ♦ Continuous time systems ♦ Reactive power ♦ Sampling methods ♦ Frequency domain analysis ♦ Pi control ♦ EMTP
Abstract A critical assessment of the approximate methods for the stability analysis of a pulse-width modulated (PWM) static volt-ampere reactive (VAr) compensator is presented. Different continuous system approximate models for the stability analysis of the system are developed and their validity is investigated. In particular, it is shown that continuous system approximate models, in which only the principal component of the open-loop pulse transfer function is considered, cannot be used for pulsed stability analysis and closed-loop design of the system. Although these approximate analyses can be misleading and/or erroneous, a standard method such as z-domain analysis or pulse transfer function analysis in the s domain in which the sampling effect is not neglected yields useful results. A frequency domain method based on direct computation of a pulse transfer function in the s domain is used for pulsed stability analysis. The closed-loop operation of the system with a proportional-integral controller is investigated. The dynamic performance and the closed-loop design of the system are verified with the Electro-Magnetic Transients Program (EMTP).<<ETX>>
Description Author affiliation :: Dept. of Electr. Eng., Toronto Univ., Ont., Canada
ISSN 08858993
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1993-01-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 8
Issue Number 1
Size (in Bytes) 733.92 kB
Page Count 9
Starting Page 76
Ending Page 84

Source: IEEE Xplore Digital Library