| The Magnetic Levitation system presents this classic control problem of sustaining a metalic ball in an electromagnetic field with both analogue and digital solutions. |
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Features
- Non-linear model
- Unstable system
- Linearisation about an operating point
- Infra-red sensor characteristics
- Closed-loop identification
- Lead-lag Compensation
- Perturbation sensitivity
- PD control
- 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
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Description
This classic magnetic levitation control problem
is now presented in a new and innovative form.
A 25mm diameter, hollow steel sphere is
suspended in space with visually appealing
results and convenient time constants. Both
analogue & digital control solutions are implemented.
Convenient sockets on the enclosure
panel allow for quick changes of analogue
controller gain and compensation components.
The equipment is self-contained in analogue
mode, with built-in power supply. In the digital
mode the system operates within a MATLAB
environment which allows the system parameters
to be determined and the system to be
modelled. Once the digital controller parameters
have been determined, the controller can
be used to run the hardware and the actual
control performance can be seen and analysed.
Curriculum Coverage
Closed loop control
Real time digital control
Linearisation of non-linear system
Analogue-Digital control, conversion methods
Closed loop PID control
Sample time and sampling effects
Animation
