Abstract
Magnetic levitation is a phenomenon of levitation objects by using a magnetic field to defy gravity. Magnetic levitation is an interesting research topic widely used in industry or transportation such as magnetic levitation trains, conveyors, lifts, and many more. In general, magnetic levitation can be realized by regulating the current as a magnetic field source. However, due to the normally unstable power supply source, results in magnetic field instability. Therefore, a magnetic field control system is needed to stabilize the magnetic levitation system. In this study, a magnetic lifting system has been developed using the Proportional-Integral-Derivative (PID) control method and hall effect sensor. The result shows that by using the PID controller, the magnetic object successfully floated stably at the reference point form 1.4 cm to 6.5 cm with an error ± 0.02 cm and overshoot 0.2 cm, if without using PID, oscillations occur with an error rate of ± 0.1 cm and overshoot of 0.6 cm.
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