Robust PID controller design for the magnetic levitation system: Frequency domain approach

2017 ◽  
Author(s):  
Maria Hypiusova ◽  
Alena Kozakova
Keyword(s):  
Frequency Domain ◽  
Pid Controller ◽  
Controller Design ◽  
Magnetic Levitation ◽  
Levitation System ◽  
Pid Controller Design ◽  
Magnetic Levitation System ◽  
Frequency Domain Approach ◽  
System Frequency

Backstepping Based Adaptive Control of Magnetic Levitation System

2013 ◽  
Vol 341-342 ◽  
pp. 945-948 ◽  
Author(s):  
Wei Zhou ◽  
Bao Bin Liu
Keyword(s):  
Parameter Uncertainty ◽  
Closed Loop ◽  
Controller Design ◽  
Magnetic Levitation ◽  
Adaptive Controller ◽  
Closed Loop System ◽  
Actual System ◽  
Levitation System ◽  
Magnetic Levitation System ◽  
Control Accuracy

In view of parameter uncertainty in the magnetic levitation system, the adaptive controller design problem is investigated for the system. Nonlinear adaptive controller based on backstepping is proposed for the design of the actual system with parameter uncertainty. The controller can estimate the uncertainty parameter online so as to improve control accuracy. Theoretical analysis shows that the closed-loop system is stable regardless of parameter uncertainty. Simulation results demonstrate the effectiveness of the presented method.

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