Magnetic Levitation System 33-006

The Magnetic Levitation system presents this classic control problem of sustaining a metalic ball in an electromagnetic field with both analogue and digital solutions. The suspended body is a 25mm hollow steel ball. In the analogue mode the system is fully self-contained. In the digital mode it operates with MATLAB/Simulink software.

Features

Analogue operation

• Non-linear model
• Unstable system
• Linearisation about an operating point
• Infra-red sensor characteristics
• Closed-loop identification
• Lead-lag Compensation
• Perturbation sensitivity
• PD control

Digital operation

• Non-linear model
• Unstable system
• Linearisation about an operating point
• A/D and D/A conversion
• Closed-loop identification
• Perturbation sensitivity
• State space PD control
• Regulation + Tracking Control

Curriculum Coverage

Analogue Control using RC network

• Closed loop control
  
  Digital
  
• Real time digital control
• Linearisation of non-linear system
• Analogue-Digital control, conversion methods
• Closed loop PID control
• Sample time and sampling effects
• Animation
• On-line parameter adjustment