Parameter optimization with Gray Correlation Analysis Based Design of Interior V-Shaped PM Synchronous Motor for SWPS

In this paper, the parameter optimization along with the gray correlation analysis is used for design of interior V-shaped permanent magnet synchronous motor (IVS-PMSM), which is used in solar water pump system (SWPS). The motor design based on the fundamental equations does not produce the optimal performance indicators. This necessitates the optimization of initially designed motor to improve its performance in terms of torque ripples and saliency ratio. This also improves the overall system performance. Thus, the parameter optimization based on finite element methods, is used here for achieving the optimum design of IVS-PMSM. However, the selection of final design values is not so obvious due to the contradictory needs of various design objectives and the presence of a number of design variables. Therefore, a statistical method based on the gray correlation analysis is used for selection of final design. Thereafter, a comparison is carried out between the two designs to demonstrate the superiority of later over the former through various performance indicators.