Title :
Simulation of Excitation Current for No-Load Transformers Based on Jiles-Atherton Model
Author :
Zhang, Zhongyuan ; Yang, Lei ; Li, Wenbo
Author_Institution :
Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Baoding, China
Abstract :
This paper describes a method for simulating excitation current for no-load transformers based on Jiles-Atherton model, and the saturation and hysteresis effect of the iron core is taken into consideration. Matlab is used to obtain different excitation current waveforms under different voltage levels. Then the method has been applied to an 11kV transformer. The B-H curves and excitation current waveforms show nonlinear distortion, especially when the voltage is high. The results are in agreement with the facts.
Keywords :
electric current; hysteresis; power transformers; transformer cores; B-H curves; Jiles-Atherton model; excitation current waveform; hysteresis effect; iron core; no-load transformer; nonlinear distortion; saturation effect; voltage 11 kV; Circuit faults; Magnetic domains; Magnetic hysteresis; Magnetization; Mathematical model; Power transformers; Saturation magnetization;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0545-8
DOI :
10.1109/APPEEC.2012.6307365
