Affiliations: Department of Electrical, Electronic and System Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi, Malaysia
Correspondence:
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Corresponding author: Ramizi Mohamed, Department of Electrical, Electronic and System Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Malaysia. Tel.: +60 0389118408; E-mail:[email protected],[email protected]
Abstract: The vibration based piezoelectric energy harvester system
is considered as an alternative solution for micro-devices, especially for
remote area. This paper presents an optimization approach to determine the
optimal cantilever beam of a rectangular shape piezoelectric energy
harvester to run the micro devices in which power is unavailable. In this
study, PZT-5H material has been utilized. The motivation behind this
research is to maximize the power behavior by optimizing the cantilever
beam's length, width and thickness. Therefore, the proposed rectangular
cantilever beam has been optimized by using modified particle swarm
optimization (MPSO) algorithm and designed in COMSOL software. Finally, the
optimization results of MPSO are compared with other technique to validate
the outcomes. The findings show that the performance of the proposed
technique is better than other technique in terms of quality and convergence
speed.
Keywords: Energy harvesting, modified particle swarm optimization, materials, piezoelectric, micro-device
