Mathematical Modelling of Electromagnetic Transduction for Optimal Power Harvesting from Induction Motors

Induction motors are widely used to convert electrical power into mechanical power because they are simple, rugged, robust, efficient, and suitable for applications in harsh environments. Previous studies have been conducted on magnetic energy harvesting from manufacturing machinery, such as an induction motor, the electromagnetic transducer developed employed the clamped current-transformer technique. Until now, no study has been conducted on mathematical modelling for harvesting magnetic energy using a Clampless Current-Transformer method, specifically from an induction motor. This article proposes the mathematical modelling of electromagnetic transduction from an induction motor using Ansys Engineering Simulation Software. It models and simulates the core design with each material before using Clampless Current-Transformer method electromagnetic transducer to capture the radiation of magnetic field energy in various core designs. The simulation contrasts Stainless and Carbon Steel for the core material consisting of different core shapes; cylindrical and square rods with 300 and 500 turns. The proposed electromagnetic transduction provides better flexibility due to its clampless feature from the incoming supply to the induction motor; instead, it can be placed anywhere near the most substantial magnetic field radiation. The modelling demonstrates that long cylindrical core Carbon Steel produces higher output power for 500 turns. The proposed modelling with the Clampless Current-Transformer approach can efficiently harvest magnetic field energy. It could have practical implications for energy harvesting from induction motors, enabling the transducer to be conveniently near the strongest magnetic field without clamping to the motor supply.