Title: Computations of the electrical part of Rybnik power plant generating unit parameters based on measurements
Authors: Majka, Łukasz
Paszek, Stefan
Citation: AMTEE ’07 : seventh international conference on Advanced Methods in the Theory of Electrical Engineering : September 10-12, 2007 [Pilsen, Czech Republic].
Issue Date: 2007
Publisher: University of West Bohemia
Document type: konferenční příspěvek
URI: http://amtee.zcu.cz/AMTEE/ArchivedProceedings/proceedings_AMTEE_2007/data/section_i.html
ISBN: 978-80-7043-564-9
Keywords: dynamická stabilita napájecích systémů;optimalizace;studium dynamických modelů
Keywords in different language: dynamic stability of power systems;optimization;study of dynamic models
Abstract in different language: The paper presents the methodology and results of the generator and electromachine excitation system model parameters computations. The computations were based on real dynamic waveforms obtained from possible to perform in Rybnik Power Plant measurements of the generator steady state disturbed with different test disturbances. The disturbances used for parameters estimation are a load rejection test and a step change in AVR voltage reference value by +/- 5%. The voltage controller was operating (automatic control) during the test. The methodology of parameter determination consists in performing a number of simulations and comparing the simulation results with test results. The estimation process is iterative and in each iteration the model parameters are changed so that the simulated response becomes as close as possible to the test results. In the effect, the parameter estimation problem is transformed into an optimisation one, where the objective function is defined as the squared deviations between the test and simulation results and then it is locally minimised using the large-scale, trust-region, reflective Newton gradient algorithm. The methodology of filtering measurement signals recorded is also given in the paper.
Rights: © University of West Bohemia
Appears in Collections:CPEE – AMTEE 2007

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