MATEC Web Conf.
Volume 217, 20182018 International Conference on Vibration, Sound and System Dynamics (ICVSSD 2018)
|Number of page(s)||7|
|Published online||17 October 2018|
Modeling and Experiment of Electromagnetic Energy Harvester System by Using Dual Moving Mechanical Systems at Low Frequency Range.
Universiti Kuala Lumpur Malaysian Spanish Institute, Kulim Hi-Tech Park
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This paper presented a concept of single degree of freedom (SDOF) electromagnetic vibration energy harvester device. This technique enable system to operate at wideband frequency range, low frequency and has multi-resonance frequencies. Each mechanical system operates at difference frequency where each system is attached with electromagnetic transducer components. the device is developed based on the parameter factors of vibration transmissibility from external vibration sources into the device through mathematical modelling. A prototype was tested by using vibration exciter and normal human walking. the fabricated device had showed multi-resonant behavior at 4.26 and 8.34 Hz during test. From experiment results, they have showed capability to operate at wide bandwidth frequency from 1.9 until 18.5 Hz at a periodic excitation of 0.04 g. the highest amount of rms voltage that has been produced about 108 mV with a maximum 78 µW average power across the 150 Ω load resistance. So, it has proven the dual-moving mechanical concept with low damping value in system has increased the operating bandwidth frequency and also increased the amount of output voltage from device.
Key words: Parameter factor / Vibration transmissibility ratio / Electromagnetic vibration energy harvester system
© The Authors, published by EDP Sciences, 2018
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