Title :
Power Transformer No Load Loss Optimization considering Manufacturing Process Effects
Author :
Kefalas, Th D. ; Tsili, M.A. ; Kladas, A.G. ; Georgilakis, P.S. ; Souflaris, A.T. ; Paparigas, D.G.
Author_Institution :
Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens
Abstract :
Transformer no load loss optimization is crucial for transformer manufacturers as well as for electric utilities, since it results to significant economic benefits. In this article, the three-dimensional finite element analysis is applied to power transformers in order to predict and minimize the iron loss. The proposed model is based on a particular reduced scalar potential formulation, necessitating no prior source field calculation, and employs detailed modeling of the core geometry and material, considering for manufacturing core formation process effects by convenient hysteresis phenomenological models. Comparisons between this method and test values for a number of commercial transformers, prove its validity and accuracy, rendering it a reliable tool for customized design of an industrial plant
Keywords :
cores; design engineering; finite element analysis; losses; power transformers; convenient hysteresis phenomenological models; core formation process; core geometry; economic benefits; electric utilities; industrial plant; iron loss; manufacturing process effects; no load loss optimization; particular reduced scalar potential formulation; power transformer; source field calculation; three-dimensional finite element analysis; Economic forecasting; Finite element methods; Geometry; Iron; Manufacturing processes; Power generation economics; Power industry; Power transformers; Solid modeling; Transformer cores;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1633160
