Optimal design of three phase induction motors and their comparison with a typical industrial motor
Three optimally designed three-phase squirrel-cage induction motors are compared with an industrial (conventional) motor having the same ratings. The HookeJeeves search routine is used for optimization and three objective functions, namely efficiency, efficiencycost and cost, are considered. Comparison of the optimum designs with the initial and industrial design reveals that better than the proposed performance can be obtained by a simple optimization method. It is interesting to note that the industrial design satisfies some performance of the cost optimum design, and efficiency optimum design, of course with a lower efficiency. The most desirable variation of motor performance with line voltage and output power is due to the efficiency optimum design.
squirrel-cage induction motor objective functions design optimization