OPTIMIZED AND NUMERICAL MODELS OF ELECTROMECHANICAL DEVICES COUPLED WITH COMPUTATION OF PERFORMANCE CHARACTERISTICS

Vasilija Sarac – Tatjana Atanasova-Pacemska – Dragan Minovski – Goran Cogelja – Miroslava Smitková – Christian Schulze

   The method of genetic algorithms is used to optimize the efficiency factor of two objects: single a phase shaded pole motor and the main inductor for an LCL filter, aimed for independent operation. By varying the construction parameters, three motors and two inductor models have been designed and optimized. The optimized motors exhibited a gradual increase of the efficiency factor achieved for the same input power. Also an increased output power has been achieved, which considerably improved the low efficiency factor for this type of the motor. The optimized filter models have an increased efficiency due to the lower losses and a decreased warm-up. All models are evaluated by the finite element method, which allows to plot the magnetic flux density distribution in the cross section and hereby the possible weak parts of the construction with a high flux density can be discovered.

Keywords: single phase shaded pole motor, inductor for LCL filter, genetic algorithms, efficiency optimization

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