Power analysis for an electromagnetic generator with magnets destined to vibration energy harvesting

摘要

This paper presents an analysis of power for an electromagnetic generator based on permanent magnets dedicated to energy harvesting from ambient vibrations. This analysis refers to: determination of power equations for a sinusoidal input signal depending on frequency and for resonance conditions; increasing the generator power using broadband energy harvesting methods, how are, the methods to tuning the resonant frequency or the non-linear methods for wider bandwidth; experimental results regarding energy harvesting from linear and nonlinear oscillations in the described generator that uses the magnetic levitation.