Domain decomposition with subdomain pre-processing for finite element modelling of transformers with stranded conductors
Source abstract
Abstract
Finite element analysis of transformers with stranded conductors can be computationally heavy due to the fine mesh required for winding domains. In this paper, a domain decomposition method with subdomain pre-processing is proposed to overcome with this problem. In order to solve the field-circuit problem with finite element analysis, the winding domain is modelled initially. Next, the reduced matrix system is obtained from the winding domain formulation. The solution of the entire problem is obtained by solving the winding domain formulation and the reduced matrix system separately. The method is tested on a transformer model in no load operation. Accurate solutions are obtained in both frequency and time domains 7-9 times faster than when using brute-force method.
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Research context
OpenAlex topics: Magnetic Properties and Applications · Electric Motor Design and Analysis · Silicon Carbide Semiconductor Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Aalto University 1 , Espoo 02150, Finland
Smeklab Oy 2 , Espoo 02120, Finland
Tampere University 3 , Tampere 33720, Finland
Trafotek Oy 4 , Turku 20540, Finland
Funding
Academy of Finland
References (25)
Show source-provided references
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