A study on vibration energy harvesting in electric generators

This paper aimed to provide an overview on a potential source of renewable energy, and take advantage of the wasted energy produced by the vibration of an electric generator. A system called VEHD or Vibration Energy Harvesting Device was designed to harness this vibration energy and convert it into electrical energy with the use of a Piezoelectric Transducer, with the generator providing the vibration needed for the piezoelectric transducer to produce voltage. Then, the electrical energy was measured, monitored and compared this from other trials from different test points of the generator. The researchers were able to verify that the greater the percent unbalanced of the line currents, the greater the generated voltage. As for the concept's feasibility, since the prototype was only of small scale, a larger scale set up would be more effective in harnessing energy and generating power.