Design And Development Of Miniature Electromagnetic Micro-Generator For Harvesting Energy From Vibration

Wong, Shi Quan (2015) Design And Development Of Miniature Electromagnetic Micro-Generator For Harvesting Energy From Vibration. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) Design And Development Of Miniature Electromagnetic Micro-Generator For Harvesting Energy From Vibration 24 Pages.pdf - Submitted Version Download (837kB)

Abstract

Nowadays, green energy is widely use in our life and it becomes popular since it is pollution free, energy conserve and cost saving. There are various types of green energy which we can harvest from the environment such as the solar energy, hydro energy, wind energy and vibration energy. One of the common energy we found in our surrounding is vibration energy. Moving cars, refrigerator, washing machine and industrial machine are the sources of the vibration energy. The vibration energy can be harvested and converted into useful electrical energy which can use to power up small electrical devices such as wireless sensor node. In this project, a miniature electromagnetic micro-generator has been designed and developed to harvest the free vibration energy from the vibration source. The generator works purely based on electromagnetic theory which use the magnetic induction to generate electricity. The structure of the generator consists of a cantilever, Neodymium magnets, magnetic wire coil and a rectifier circuit. The size of the generator is small with a volume approximately 24cm3 which made it capable to be deployed in some inaccessible place. Besides, the generator can be tuned to fit with the vibration source by adjusting the length of the cantilever. It is capable to produce a maximum power of 0.1Watt with a 2.1G vibration source at its resonant frequency of 49.1Hz.

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