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Effect of Different Parameters on the Controller Performance for a DC Attraction Type Levitation System
Abstract
The basic parameters for electromagnetic levitation systems are inductance and resistance of the actuator, input DC link voltage, mass of the payload (object), air-gap between the pole face of the electromagnet and ferromagnetic guide-way or object, etc. All these parameters are supposed to change in real-life situations. DCALS is inherently unstable and strongly nonlinear in nature. In most cases, a classical controller has been designed for the linear model around an operating point for maintaining overall closed-loop stability. So, the performances of the linear controller with the change in different parameters have been studied. The parameters of the designed controller also vary during experimentation. So, a sensitivity study of the controller for a DCALS is also important.
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