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Analysis of Stray Losses in Transformers using Finite Element Method Modelling | IEEE Conference Publication | IEEE Xplore

Analysis of Stray Losses in Transformers using Finite Element Method Modelling


Abstract:

The integration of classical transformer design procedures with the staggering speed and coherent versatility of modernistic computational methods to evaluate and manage ...Show More

Abstract:

The integration of classical transformer design procedures with the staggering speed and coherent versatility of modernistic computational methods to evaluate and manage stray losses in transformers incite better understanding into the transformer design philosophy especially for renewable energy (RE) application. This is on account of tools suchlike Finite Element Method (FEM) that can perform several unwieldy and iterative computations in a judicious and stepwise approach yielding transformer designs that meet the stringent technical specification of REs. In the present work, the key objective is to carry out the computation of the winding Eddy loss which fosters in mapping the hotspot temperature in the transformer windings. To enable the computation of dispersed winding Eddy loss, FEM based Ansys Maxwell is employed to treat the magnetic flux density calculations at the hub of individual winding conductors. The vector decomposition of the flux density gives winding Eddy loss as a result of axial and radial magnetic flux leakage components.
Date of Conference: 23-27 August 2021
Date Added to IEEE Xplore: 28 September 2021
ISBN Information:
Conference Location: Nairobi, Kenya

I. Introduction

In recent decades, a surge in the emergence of research in the direction toward the utilization of modernistic computational methods to evaluate and manage stray losses in transformers has been witnessed. These losses can be significantly higher in transformers intended to be of service to renewable energy application due to the irregularity of renewable energy sources and related arduous operating conditions. A daunting task for transformer designers in this day and age is the capitalization of significantly higher guaranteed loss requirement, competitive transformer pricing, and superlative performance. The advancement of computational power enables utilization of tools suchlike Finite Element Method (FEM) to grant opportunities to improve transformer designs and performance. The introduction of FEM into the transformer challenges and design philosophy in renewable application has ceded new horizons and principles in addition to economizing the engineering labour hours.

References

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