Title :
Loss analysis of transformer core using FEM method taking account of anisotropy
Author :
Wang, Xiaoyan ; Xie, Dexin ; Cheng, Zhiguang ; Zhang, Junjie
Author_Institution :
Dept. of Electr. Eng., Shenyang Univ. of Technol., Shenyang
Abstract :
A new method to analyze the losses of core of power transformers is proposed. Epstein frame and specimens that are sheared at different angles to rolling direction to measure B-H curves and Wt-B curves of grain-oriented silicon steel sheets are used with this method to take account of anisotropy of the core. The computational results using both the conventional and proposed methods of the iron loss of a three-phase transformer are compared to validate the new proposal.
Keywords :
finite element analysis; power transformers; B-H curves; Epstein frame; FEM method; Wt-B curves; anisotropy; grain-oriented silicon steel sheets; loss analysis; power transformers; three-phase transformer; transformer core; Anisotropic magnetoresistance; Magnetic cores; Magnetic field measurement; Magnetic fields; Magnetic flux density; Magnetic properties; Phase transformers; Silicon; Steel; Transformer cores;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
