Title:
1-s2.0-S0952197602000878-main
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Description: The paper presents an in situ parameter estimation method to determine the equivalent circuit parameters of the three-winding
transformer (TWT). The suggested method also estimates geometrically a complex parameter that is mutual leakage between
secondary and tertiary windings, which would be useful in transient studies. Beside the saturation effect of the transformer is taken
into account by estimating a highly nonlinear parameter that is magnetizing circuit reactance. Different search based optimization
tools are applied for parameter estimation among which the results obtained using genetic algorithm is found to be encouraging.
Load test data at one particular operating point namely supply voltage, load currents, input power, and load impedance is suffi cient
to estimate the parameters.
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