2D Finite Element Modeling and Analysis of Single-Turn Coil Configuration in Magnetic Spring Energy Harvester

This paper investigates a magnetic spring energy harvester configuration with single-turn coil to increase the electrical performance. This nonlinear energy harvester that converts vibration into useful electric power consists of an oscillating levitated magnet in-between two stationary magnets. The magnetic interaction with single-turn coil and magnetic spring energy harvester is analyzed in an experimental evaluation and using the 2D finite element method (FEM). Therefore the configuration of magnetic spring and multi-turn electric coil is simulated in 2D FEM to achieve the coil size and number of turns. This study can provide the geometric design parameters and performance of magnetic spring energy harvester based on multi-turn coil.