Influence of Electromechanical Parameters on Electric Power in a Vibratory Energy Harvester Using Magnetic Shape Memory Alloys

In this paper, a versatile model for predicting the effect ofmechanical and electrical parameters on commercialmagnetic shape memory alloy (MSMA) based energyharvester systems is presented. Such systems use permanentmagnet as the source of bias magnetic field in a magneticcircuit. Modeling strategy incorporates the constitutivemodel developed before together with the magnetic andelectric equivalent circuits. Validation of the proposedmodel has shown a 2.5% mean squared error in accordancewith the reference experimental data. As the main noveltyof this paper, the parameters in the proposed model such asMSMA dimensions, material and dimensions offerromagnetic core, electrical elements etc. are alterable.Thus, the results from simulations can be used in futureenergy harvester design and parameters optimization indifferent situations.