D7.1 - A Hybrid Simulation Approach for Piezoelectric Vibration Energy Harvesting
- AMA Conferences 2015
2015-05-19 - 2015-05-21
- Proceedings SENSOR 2015
- D7 - Energy Harvesting
- D. Gedeon, S. Meyer, S. Rupitsch, R. Lerch - University Erlangen-Nuremberg (FAU), Erlangen (Germany)
- 621 - 625
We present a hybrid modeling method for the simulation of vibration Energy Harvester devices on a system level. A Finite Element solver for coupled problems (CFS++) is linked to a Simulink-based circuit simulator. The method addresses the need for optimization of the electromechanical device, the electronic energy extraction circuit as well as its control. By employing the Finite Element Method, precise modeling of piezoelectric harvesting devices can be accomplished. The investigation of nonlinear electronics (e.g., switched converters, diodes, etc.), however, demands for efficient transient computation. We resolve this discrepancy by using a modal truncation method for the Finite Element model. Through an automated procedure, simultaneous optimization of the system components is enabled.