wind turbine transformer optimum design assuming a 3d wound core

a wind turbine transformer (wtt) is designed using a 3d wound core while the transformer’s total owning cost (toc) and its inrush current performance realized as the two objective functions in a multi-objective optimization process. multi-objective genetic algorithm is utilized to derive pareto optimal solutions. the effects of inrush current improvement on other operating and design parameters of the transformer such as: losses, dimensions, and weights are investigated. an approach is presented to select one design from optimal pareto solutions based on relative improvement of the inrush current performance.  finally, this multi-objective optimum wind turbine transformer design is compared with an optimum transformer design obtained when just toc is the objective function.