Magnetically Nonlinear Iron Core Characteristics of Transformers Determined by Differential Evolution (CROSBI ID 171747)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Štumberger, Gorazd ; Žarko, Damir ; Tokić, Amir ; Dolinar, Drago
engleski
Magnetically Nonlinear Iron Core Characteristics of Transformers Determined by Differential Evolution
An optimization based method for determining magnetically nonlinear iron core characteristics of transformers is proposed. The method requires a magnetically nonlinear dynamic model of the transformer as well as voltages and currents measured during the switch-on of unloaded transformer. The magnetically nonlinear iron core characteristic is in the model accounted for in the form of three different approximation functions. Their parameters are determined by the stochastic search algorithm called differential evolution. The optimization goal is to find those values of approximation functions parameters where the root mean square differences between measured and calculated currents are minimal. The impact of individual approximation functions on calculated dynamic responses of the transformer are evaluated by the comparison of measured and calculated results.
Transformer; Differential Evolution; optimization
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
327
2011.
247-259
objavljeno
1860-949X
1860-9503
10.1007/978-3-642-16225-1_14