Using Surrogate Model for Shape Optimization of Busbar

Methodology of shape optimization of the frequency converter blades, which are heated by Joule losses due to nonuniform current flow, is presented. For processing this coupled and nonlinear problem, its full mathematical model is replaced by a suitable equivalent model, on which the optimization is subsequently performed. The paper demonstrates the possibilities of acceleration of complete simulations, where it is often problematic to carry out the optimization process, using a suitable equivalent model, which would be able to provide sufficiently accurate results in the initial design stages.