Linear active-disturbance-rejection control parameter optimization method for fast steering mirror

By redesigning the linear expansion state observer and error feedback controller, the optimization of linear self-immune control parameters of fast-reflection mirrors is simplified, and the problems of complex parameter estimation and poor control results in the prior art are solved, and the burst is improved Disturbance suppression ability and system performance.

CN119225161APending Publication Date: 2024-12-31UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Application Number
CN202411333828.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2024-12-31

AI Technical Summary

Technical Problem

In the existing self-immune control methods, the parameter estimation of the nonlinear expansion state observer is complex and the control law is difficult to set. The linear expansion state observer has great errors in the system's higher-order state estimation, resulting in insufficient control results.

Method used

The linear expansion state observer is used to estimate the fast mirror system state. By redesigning the observer gain matrix and error feedback controller, the system parameters are adjusted to achieve linear self-immunity control, which simplifies the parameter optimization process.

Benefits of technology

Improve the ability of fast mirror to suppress sudden disturbances, optimize the performance of laser communication, photoelectric detection and other systems, and provide parameter optimization methods for LADRC with high model parameter determination, reducing the overshoot and oscillation of control results. , improves the stability and tracking rate of the system.

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Abstract

The invention discloses a linear active-disturbance-rejection control parameter optimization method for a fast steering mirror, and belongs to the technical field of laser communication and photoelectric detection. According to the method, when the LADRC is used, the internal state of the system is obtained according to a fast reflecting mirror model, and then a linear expansion state observer of the LADRC is redesigned to focus on observation of external unmodeled disturbance. According to the method, on the basis of LADRC, a fast reflecting mirror transfer function is introduced, a linear expansion state observer is redesigned, and therefore LADRC optimal control parameters are obtained. The research not only can further improve the performance of photoelectric systems such as laser communication, photoelectric detection, laser radar and the like using the fast reflecting mirror, but also can provide a new method for LADRC parameter optimization with high model parameter determinacy.
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Citation Information

Patent Citations

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