Position control system via active disturbance rejection for laser optical systems
In this work, an Active Disturbance Rejection Control scheme for a Laser Beam Stabilization system is presented in a pragmatic way. First, a Linear Extended State Observer is designed, which allows estimating external disturbances, non-model dynamics, and the transverse displacement speed of the bea...
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| Main Authors: | , |
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| Format: | Article |
| Language: | Spanish |
| Published: |
Universitat Politècnica de València
2021-12-01
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| Series: | Revista Iberoamericana de Automática e Informática Industrial RIAI |
| Subjects: | |
| Online Access: | https://polipapers.upv.es/index.php/RIAI/article/view/14852 |
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| Summary: | In this work, an Active Disturbance Rejection Control scheme for a Laser Beam Stabilization system is presented in a pragmatic way. First, a Linear Extended State Observer is designed, which allows estimating external disturbances, non-model dynamics, and the transverse displacement speed of the beam. Subsequently, a control law is proposed for regulation and tracking tasks. The stability analysis in the Input-to-State-Stability framework shows that the closed-loop system, plant-observer-controller is stable when the total disturbance is viewed as the input, and the state is the beam position error. This analysis presents new perspectives to a now-classic result. The experimental results show the performance of the control scheme. Using the L2 norm and the Integral of the Squared Error, the closed-loop performance is evaluated and compared with three controls generally used in this type of systems: PID, observer-based state feedback, and linear quadratic gaussian regulator. |
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| ISSN: | 1697-7912 1697-7920 |