Original scientific paper
Estimation of Parameters for Synchronous Generator from Sudden Short-circuit Test Data Considering Rotor Speed Variation
Muharem Mehmedović
Zdravko Rabuzin
Tomislav Bičanić
Abstract
Procedure to estimate parameters of synchronous hydro-generator (18 MVA) from sudden short-circuit measurement data is presented. Test performed was under small and slow speed variation and reduced excitation current. Data were collected in the form of sampled time series of measured armature voltage and currents
prior to and during the sudden short-circuit test. Neither the rotor speed nor the angle between rotor and stator were measured. Detailed method of initial and final estimation of parameters were also appraised (Prony's method and constrained minimization technique) considering behaviour of the rotor angle and speed
during the test.
Keywords
constrained minimization; estimation of parameters; Prony's method; sudden short-circuit test; synchronous generator
Hrčak ID:
18370
URI
Publication date:
15.11.2007.
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