Berlin 2024 – scientific programme

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AKE: Arbeitskreis Energie

AKE 1: Innovative Energy Transformation Concepts

AKE 1.7: Talk

Monday, March 18, 2024, 17:00–17:15, TC 006

Simulation of an electromagnetic vibration energy harvester and possibilities of increasing efficiency and scalability — •Eugen Vambolt — Technische Hochschule Nürnberg Georg Simon Ohm

To ensure the reliability of infrastructures such as roads, bridges, buildings, etc., they must be constantly monitored. To this end, networks of wireless sensor nodes are increasingly being used, which can be operated autonomously through the use of energy harvesters. Energy harvesters are small modules that can convert ambient energy such as light, vibration or temperature differences into electrical energy. The use of Vibration Energy Harvesters (VEH) is therefore ideal for applications that are associated with vibrations or shocks. There are several types of VEH, depending on how they work. One type of VEH is based on electromagnetic induction. Although there are different designs, the principle is the same: a magnet set in oscillation by vibrations or shocks induces an electrical voltage in a fixed coil, which can be used to supply the sensor nodes with energy through the use of low-power electronics. By changing the topological and material properties of the individual components, it is possible to increase performance and efficiency. In this thesis, a model of the electromagnetic vibration energy collector is constructed and a multiphysical simulation is carried out. In addition, a possibility of scaling by varying the design and materials will be demonstrated.