Useful Techniques for Field Analysts in the Design and Optimization of Induction Motors

Induction motor optimization can be time consuming. One of the parameters central to the design is slip, and the slip at peak torque changes greatly as the field analyst modifies the layout of the machine. Vector controllers allow induction motor manufacturers to operate very close to pull out. The designer has the continued task of predicting performance near peak for all proposed modifications in order to compare the designs equitably. This paper discusses techniques useful for working with the smallest sub-portion of the machine possible during optimization. Second, it discusses the importance of integrating multiple objectives into the optimization index. Special attention is given to a linear induction motor which introduces the added complexity of end effects