Adaptable electromagnetic energy harvester design for industrial implementation

Vibration presents an important source of energy for different applications. Instead of that, most of such real sources are characterized by their low amplitude vibration and frequencies. Taking into account these parameters, optimization of an electromagnetic converter design in order to reach maximum generated power is proposed. In this paper, a novel cylindrical electrodynamic energy harvesting converter is developed. In order to have a reliable electrical connection, a fixed coil is taken into consideration in the design. For that, we use moving magnets with magnetic spring principle in order to avoid the use of mechanical spring to ensure high efficiency for the system. A finite element model is developed in order to optimize the magnets and coil layouts and size.