Optimization of single-phase induction motor design. I. Formulation of the optimization technique

The optimal design of the motor dimensions, the capacitance of the run capacitor, the winding distribution and the choice of the electrical steel are the most important sources for an improvement of the efficiency of modern single-phase induction motors for given performance and material cost constraints. The formulation of the techniques which realize this optimization is dealt with, based on nonlinear programming approaches. A comparative study for both the method of boundary search along active constraints and the Han-Powell method is performed from a theoretical convergence and practical application point of view to develop the best method for the optimization of single-phase induction motor designs