- In this paper, we present a novel and practical approach in optimal design of stator rewinding of high voltage three-phase induction motor by using Genetic Algorithm (GA) to achieve permissible new voltage. More than 90 percent of industrial electrical motors are three-phase induction motors and still are in development; therefore, the improvement of these systems as the most widely used electrical loads is important. Non-linear equations with complex variables, non-continues solution space, magnetic tension and thermal limitation are important parameters in utilization of linearize models in design of motors. Changing the level of voltage- modifying the transformers- needs to change the input voltages of electrical motors. In this situation, rewinding of stator is acceptable providing the observance of international standards. Lack of complicated and sophisticated mathematical calculations is the most benefit of GA in contrast with Non-Linear Parameters (NLPs) techniques. The optimization of stator rewinding is done for minimization of cost function and lost, maximization of full load torque and multi targets optimization. Finally, we simulate the obtained results for 2-pole, 50-hetrz and 260 kw for changing the voltage from 6600 volt to 3300 volt. By comparison with the results of industrial software for design of electrical machine, SMART, our results show a decrease in final weight of winding and cost.

کلمات کلیدی