BETA axis

Presentation :

The BETA Axis is the result of a real industrial system allowing to control, by Foucault current, the tubes of the steam generators in a nuclear power plant.

The learned BETA Axis reproduces part of this control system by positioning a camera in front of the tubes, which are marked by a perforated plate. This system uses a servo-control system.

The learned BETA Axis integrates an axis control board and a variable speed drive (myRIO control/command) and a piloting and simulation software offering a complete parameterization of the control law.

Technical solutions discussed :

Travel axis with DC motor gearbox with encoder on a slide linkage (guide with rail and bushings)

5 Mpx USB Industrial camera, 15 frames per second, resolution 2592 x 1944

Plaque perforée reproduisant les tubes du générateur de vapeur

PWM variable speed drive, 4 quadrants

National Instruments' myRIO real-time control / command board

Identification, control/command and curve display software developed under Labwiev with superimposition of expected, real and simulated performances for the quantification of deviations.

Pedagogical activities :

Characterise the power and energy required to operate a product or system

Locating energy exchanges on a structural diagram

Quantify the performance differences between expected values, measured values and values obtained by simulation7

Associating a model with a controlled system

Analysing the behaviour of a controlled system

Implement a numerical simulation based on a multi-physics model to qualify and quantify the performance of a real or imagined object.

Study bench for the analysis of the behaviour of the real system's declining servo-control system

Display of the differences between expected, simulated and real

Real-time adjustment of the PID corrector

Accompanying documents with a technical file including a description of the actual product and the product being taught, a learning file including practical activities by blocks (statements and corrections) and a resource file.

Reference :

S2I/200 : BETA axis didactised with the hardware part (BETA axis and control / command software) and all accompanying documents.