Cylindrical Linear Induction Motor with Intermittent Phase Switching used in the Borehole Plunger Pump Drive with Mechanical Energy Storage Elements

This paper discusses a mathematical model and an experimental plant developed and studied for a borehole plunger pump driven by the cylindrical linear induction motor (CLIM) and equipped with elastic elements of mechanical energy storage, where a single phase switching is performed at a three phase power supply. A design was put forward for a borehole plunger pump equipped with the cylindrical linear induction motor and mechanical energy storage elastic elements. The design ensures energy efficient operation of the pump and enables its performance to be controlled. An open phase operation mode at the reverse stroke of the plunger reduces inrush currents when the linear motor is reversed.