Systematic Winding Adjustment Designs for Efficiency Improvements of Single-phase Capacitor-run Motors

By maintaining the same circuit components and structural constraints of a commercial single-phase capacitor-run motor, this paper provides a rational stator winding design scheme for rearranging the stator conductors during their repair or maintenance periods, such that the operational efficiencies of the motors can be effectively improved. Based on the developed mathematical models and the specified design objectives, the convenient adjustment scheme applied to rewinding the stator of a commercial single-phase 2-pole induction motor will be illustrated. Supported by finite-element emulations, the expected efficiency improvements can be achieved. Along with experimental hardware validations, evident performance improvements from measurements will confirm the design.