A Development of Piezoelectric Model as an Energy Harvester from Mechanical Vibration

Abstract

Energy harnessing has gain much interest and become more essential to achieve environment sustainability. By harnessing ambient energy from the environment, it will reduce the electricity energy consumption. Nowadays, vibration energy shows a promising amount of energy generation. This paper presents the modelling for conversion of mechanical vibration into electricity using piezoelectric converter. The model development was based on the piezoelectric model of PI P-876 and the non –adaptive rectifier circuit was employed in order for direct voltage conversion that are much useful for electronic devices nowadays. Several sources of vibration energy literally reviewed such as ducting and piping system which then fed into the piezoelectric model converter in Matlab SIMULINK. As a result, a maximum direct voltage of 0.14 V and 1.96 Watt of energy could be harnessed from ducting system. This power output is sufficient for mini home appliances and low-powered wireless sensor networks in silent mode which can be used in variety of applications.