Fast procedure for constructing an accurate dynamic average-value model of synchronous machine-rectifier systems

TitleFast procedure for constructing an accurate dynamic average-value model of synchronous machine-rectifier systems
Publication TypeJournal Article
Year of Publication2006
AuthorsJatskevich, J., S. D. Pekarek, and A. Davoudi
JournalEnergy Conversion, IEEE Transactions on
Volume21
Pagination435 - 441
Date Publishedjun.
ISSN0885-8969
Keywordsalgebra, dc filter configuration, dynamic average-value model, frequency-domain analysis, full-order qd generator model, large-signal time-domain transients, nonlinear algebraic functions, nonlinear equations, power filters, rectifiers, small-signal frequency-domain characteristics, synchronous generators, synchronous machine-fed rectifier systems, time-domain analysis
Abstract

The analytical derivation of the average-value models (AVMs) for synchronous-machine-fed rectifier systems depends on many factors and is challenging in general. Various models presented in the literature rely on a single operating mode and a dc filter configuration. A recently proposed parametric approach utilizes a detailed simulation as a basis to establish an AVM that uses a proper full-order qd generator model. This paper presents a procedure to extract the appropriate nonlinear algebraic functions to represent the rectifier averaged behavior. In contrast to existing methods, the proposed procedure does not require significant analytical derivations and/or computational resources and results in a highly accurate dynamic AVM. The proposed methodology is validated with the results of detailed simulation and hardware experiment, and is shown to be very accurate in predicting the large-signal time-domain transients as well as the small-signal frequency-domain characteristics.

URLhttp://dx.doi.org/10.1109/TEC.2006.874249
DOI10.1109/TEC.2006.874249

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