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Energy harvesting systems provide a sustainable way to capture and convert various forms of energy into usable electrical power. The Electromagnetic Energy Harvester (EMEH) systems function based on Faraday’s law and are usually implemented in small systems where the demand for electrical energy is low.
This study aims to expand the use of a pneumatic cylinder by enabling it to work as an EMEH.
The objective can be achieved by adding a coil arrangement wrapped around the pneumatic cylinder and taking advantage of the rectilinear motion of the cylinder's inner magnet, which is a moving magnetic field. The paper explored the influence of key parameters on the induced voltage through a series of simulations of several designs in COMSOL software.
The simulation results of the final model show that the obtained induced voltage can be effectively improved by optimizing the main parameters of the coil within a certain range. When the coil is made up of a coil wire with a diameter of 0.4 mm, wound into 1000 turns, the induced peak voltage obtained is 3.22 V, which represents a significant improvement over the initial design parameters.
Furthermore, the simulation shows that the optimized model is capable of achieving an effective voltage of 922 mV. This demonstrates the impact of the key design parameters on the system output, thus confirming the potential application value of enhanced pneumatic cylinders with energy harvesting capabilities.
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