Single-Phase Induction Motors Winding Parameters Optimization with Maximum Efficiency

Single-phase induction motors are widely used in industry and the domestic sector. Their production in the world reaches several million pieces. In this regard, the share of electric energy consumption, despite the fact that their unit power is 0.5-1.5 kW, is up to 10% of the total power consumption by AC motors. Therefore, obtaining high rates, such as efficiency and power factor, is an urgent task in their design. The article studies the influence of magnetic flux, which is created by the main winding of the motor, on the nature of the field in the air gap. Its energy performance ultimately depends on the degree of ellipticity of the circular field in the air gap of a single-phase induction motor. In the ideal case, the field should have a circular shape, but this indicator is practically impossible to achieve. As a result, a technique is proposed for obtaining a field that is as close to circular as possible by designing the main motor winding. This technique has been successfully tested at an industrial enterprise when developing a series of single-phase induction motors.