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Global Transformer Optimization Method Using Evolutionary Design and Numerical Field Computation | IEEE Journals & Magazine | IEEE Xplore

Global Transformer Optimization Method Using Evolutionary Design and Numerical Field Computation


Abstract:

This paper addresses the complex optimum transformer design problem, which is formulated as a mixed-integer nonlinear programming problem, by introducing an integrated de...Show More

Abstract:

This paper addresses the complex optimum transformer design problem, which is formulated as a mixed-integer nonlinear programming problem, by introducing an integrated design optimization method based on evolutionary algorithms and numerical electromagnetic and thermal field computations. The main contributions of this research are: i) introduction of a new overall transformer optimization method, minimizing either the overall transformer materials cost or the overall transformer materials and operating cost, ii) expansion of the solution space by innovative techniques that define the variation of crucial design variables such as the conductors' cross-section, ensuring global optimum transformer designs, and iii) incorporation of numerical field computation in order to validate the feasibility of the optimum designs. The proposed method is compared with a heuristic optimization method of the transformer manufacturing industry and the results demonstrate the robustness and the superiority of this new approach.
Published in: IEEE Transactions on Magnetics ( Volume: 45, Issue: 3, March 2009)
Page(s): 1720 - 1723
Date of Publication: 24 February 2009

ISSN Information:


I. Introduction

The difficulty in achieving the optimum balance between the transformer cost and performance is becoming even more complicated nowadays, as the main materials used in transformer manufacturing (copper or aluminum for transformer windings, steel for magnetic circuit) are variable stock exchange commodities and their prices are modified on a daily basis. Techniques that include mathematical models employing analytical formulas, based on design constants and approximations for the calculation of the transformer parameters are often the base of the design process adopted by transformer manufacturers [1].

References

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