Research on Electromagnetic Vibration Energy Harvester for Casing of Transformers

Abstract

In the daily inspection of the existing power system, a series of parameters such as temperature, pressure, flow rate, magnetic field and so on need to be obtained in time to ensure the safety and stability of the system. Therefore, the stable operation of the power sensor needs to be ensured. However, the energy problem is one of the key issues in the sensor, this article puts forward a kind of electromagnetic vibration energy harvester for transformer casing, and establishes the three-dimensional structural mechanics model of the device and magnetic field two axisymmetric model through the simulation software. Finally, the effective value of the output voltage of the device is 3.9V and the output power is 14.45mW, which verifies the feasibility of the design and research. The device has the advantages of simple structure, compact size, simplicity, economy and universality, which is conducive to the development of intelligent integrated monitoring system of transformer operation status, and improves the transformer operation level to a certain extent.