Abstract
In this paper, an H ∞ controller is designed for disturbance attenuation of magnetically levitated steel plate. The system contains U-type hybrid electromagnet which constructed by using permanent magnet. A detailed model having nonlinear attraction force of a U-shaped hybrid electromagnet is presented and linearized for controller design purpose. Based on the linearized model, the H ∞ controller is designed to minimize air gap variation under unknown loading disturbances. Thereafter, a set of experiments conducted to compare performance of the H ∞ controller with our previously published I-PD controller on the same experimental setup.
Keywords
Controller (irrigation)
Electromagnet
Set (abstract data type)
Magnet
Computer science
Control theory (sociology)
Mechanical engineering
Engineering
Artificial intelligence
Control (management)
Subject Areas
Magnetic Bearings and Levitation Dynamics
·Control and Systems Engineering ·Physical Sciences
Electric Motor Design and Analysis
·Electrical and Electronic Engineering ·Physical Sciences
Electromagnetic Launch and Propulsion Technology
·Aerospace Engineering ·Physical Sciences
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