Recently, efforts in providing alternative energy sources have been widely explored with the consideration of extending their application according to energy source characteristics. However, vibration energy harvesting is among the most promising source of free energy scavenging. In this project development, a system that generates power from Direct Current (DC) generator, however, power generators usually produced waste vibration energy. Therefore, the final development, providing as an alternative method for harvesting the waste vibration energy and convert this vibration energy into electricity using piezoelectric material. The project has been simulated in MATLAB Simulink while the main study concern about the combination of rotor and the piezoelectric device. In this scenario, modeling of DC machine has been considered for rotor design and the Piezoelectric (PZT) material has been considered a piezoelectric material. The final result provided piezoelectric output voltage, DC generator voltage, effects of damping of the system while few ways used to improve the system were suggested.
