Simulation model for electro active polymer generators

Energy harvesting using dielectric elastomers is an interesting possibility to convert ambient energy into electric energy. Different small scale prototypes of energy harvesting devices, like wave-power generators, have been developed so far. Nevertheless, the theoretical limits and practical implementation still have to be considered. To analyze and optimize the design of the dielectric elastomer generator, the material parameters and the energy harvesting cycles, a validate electromechanical model is necessary. Further on, the simulation model can also be used to optimize the Energy Harvesting Cycle. This paper presents a model for dielectric elastomer generators, combining the electrostatic properties of the electrical part with the nonlinear elastic behavior and damping of the polymer material, validated with measurement results of a test bench.