Substantiation of Energy Performance Indicators of a Pole-Changing Two-Speed Induction Motor

This article examines the substantiation of the energy performance indicators of a pole-changing two-speed induction motor. The main objective of the study is to develop an energy-efficient electric drive solution for mechanisms operating under variable load conditions, such as pumping units. In the research, the electromagnetic and energy parameters of the two-speed induction motor were initially designed using mathematical methods, and its main operating modes were determined through theoretical calculations.

To verify and refine the obtained theoretical results, a digital model of the motor was developed using the ANSYS Maxwell software environment. During numerical simulation, the magnetic field distribution, flux density, losses, and efficiency were investigated under various speed and load conditions. The simulation results were compared with the outcomes of the mathematical calculations, and a good agreement between them was observed.

The research results showed that the application of a pole-changing two-speed induction motor makes it possible to reduce energy consumption under partial load conditions and improve overall energy efficiency. This solution has practical significance for the implementation of energy-efficient electric drives at pumping stations of water supply enterprises.