Three-winding Transformers Design by means of Differential Evolution Algorithm

The aim of the paper is the development of an optimal design for the sizing of a three windings transformer. The sizing was carried out through the solution of an optimization problem so that the leakage reactances are available within a fixed range to reduce the couplings between the two secondary windings. The optimization problem was solved with a software that uses finite element method to improve settlement procedure based on a differential evolution algorithm. Starting from an initial population of transformers, through the differential evolution we obtained the optimal solution which fits perfectly the required specifications.