ADRC在光通信APT系统下的扰动分析及参数整定

Perturbation Analysis and Parameter Tuning of ADRC in Optical Communication APT System

由于ADRC控制策略相比传统的PID控制方法有着诸多优点,因此该方法应用在了不同的领域。针对当今空间光通信APT系统精跟踪部分,采用自抗扰控制策略对其进行控制:首先分析了线性自抗扰参数对APT系统扰动的影响,然后将自抗扰控制策略加入到实验仿真中,对APT系统的扰动进行实时估计,并通过回路在控制量中加以补偿,最后对自抗扰控制的参数进行整定,以提升精跟踪部分的噪声抑制效果及APT系统的跟踪精度。实验结果表明,自抗扰控制策略应用在光通信APT系统精跟踪部分,减小了系统跟踪误差,提升了系统的快速性,增强了系统鲁棒性,满足空间光通信APT系统的高精度控制和噪声抑制需求。

Compared with the traditional PID control method, the Auto Disturbance Rejection Control （ADRC） strategy has many advantages and is applied to various areas. In this paper, the ADRC strategy is used to control the fine tracking part of the optical communication APT system. Firstly, the effect of linear auto disturbance rejection parameters on the perturbation of the APT system is analyzed. Then, the ADRC strategy is applied to the experimental simulation, a real-time estimation of the perturbation of the APT system is made, and the perturbation is compensated by the loop in the control quantity. Finally, the ADRC parameters are set to improve the noise suppression effect of the fine tracking part and the tracking accuracy of the APT system. The experimental results show that applying the ADRC strategy to the fine tracking part of the optical communication APT system can reduce the tracking error of the system, improve the system＇s fastness, enhance the robustness of the system, which meets the requirements of high control accuracy and noise suppression of the spatial optical communication APT system.