Optimization of an electromagnetic micro generator Energy Harvesting Micro Power Generator

The cooperation partner of the research project has developed a micro generator [1] based on the principle of electromagnetic induction, which is used in the product of a rotation sensor. The rotation sensor using the micro-generator is capable of counting the revolutions of a drive without applied supply voltage. In this paper it is shown how the generator system can be simulated using a block diagram based, mechatronic simulation tool. Based on the simulated static flux density of the magnetic circuit and a spring mass dampersystem, the induced electric voltage of the unloaded electrical circuit can be simulated. The obtained simulation curves can be compared with measurement data from the micro generator. With the simulation model of the electromagnetic micro generator further steps of optimization for instance more energy output or miniaturization can be realized.