Intelligent Proportional-Integral-Derivative Control-Based Modulating Functions for Laser Beam Pointing and Stabilization

This paper studies the problem of high-precision positioning of laser beams using an intelligent proportional-integral-derivative (i-PID) controller. The control problem addressed in laser beams aims at maintaining the position of the laser beam on a position sensing device under the effects of nois...

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Bibliographic Details
Published in:IEEE transactions on control systems technology 2020-05, Vol.28 (3), p.1001-1008
Main Authors: N'Doye, Ibrahima, Asiri, Sharefa, Aloufi, Adil, Asem Al-Awan, Asem, Laleg-Kirati, Taous-Meriem
Format: Article
Language:English
Subjects:
Closed loops
Computational modeling
Control systems
Controllers
Disturbances
Estimation
intelligent proportional–integral–derivative (i-PID) control
Laser beams
Laser modes
Laser stability
Lasers
model-free control (MFC)
modulating functions
PID control
Position sensing
Proportional integral derivative
robust PID (RPID) control
Robustness
Uncertainty
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Summary:This paper studies the problem of high-precision positioning of laser beams using an intelligent proportional-integral-derivative (i-PID) controller. The control problem addressed in laser beams aims at maintaining the position of the laser beam on a position sensing device under the effects of noise and active disturbances. The design of an i-PID control is based on the so-called ultralocal model. The i-PID controller has been implemented and validated on a real test bench. For the sake of enhancing the performance of the closed loop, it has been combined with a nonasymptotic and robust modulating function-based estimation method, which is used to estimate the unmodeled dynamics and disturbances. The proposed i-PID controller has shown good performance in handling the active disturbances and uncertainties present in the platform. A comparison to the classical PID and robust PID is also provided based on the experimental setup. Robustness tests are performed experimentally to show the effectiveness of the i-PID control.
ISSN:1063-6536
1558-0865
DOI:10.1109/TCST.2018.2884197