基于扰动转矩估计的导引头自适应内模控制  

Adaptive Internal Model Control of Seeker Based on Disturbance Torque Estimation

作　　者：朱海荣 张先进 吴瑜 焦子韵 李奇[3] ZHU Hairong;ZHANG Xianjin;WU Yu;JIAO Ziyun;LI Qi(School of Mechanical and Electrical Engineering Jiangsu College of Engineering and Technology,Nantong 226014 China;Electrical Engineering School Nantong University,Nantong 226019 China;School of Automation Southeast University,Nanjing 210096 China)

机构地区：[1]江苏工程职业技术学院机电工程学院,江苏南通226014 [2]南通大学电气工程学院,江苏南通226019 [3]东南大学自动化学院,南京210096

出　　处：《电光与控制》2020年第3期110-114,共5页Electronics Optics & Control

基　　金：国家自然科学基金(51307089);江苏省高校青蓝工程项目;南通市重点实验室项目(CP12015007);南通市基础科学研究项目(JC2018028);江苏工程职业技术学院自然科学研究项目(GYKY/2018/2)。

摘　　要：为了降低扰动转矩变化对导引头伺服控制系统的影响,提出了一种基于扰动转矩估计的自适应内模控制方案。首先建立导引头伺服控制系统的数学模型,设计系统的内模控制器;接着采用扰动转矩估计的方法,辨识导引头伺服控制系统转动惯量的变化情况;最后根据转动惯量的变化、通过线性自适应率自动调整内模控制器的参数,从而确保控制器的控制性能。实验结果表明,该控制方案对系统工况变化有着很强的自适应性,提高了导引头伺服控制系统的抗干扰性能和鲁棒性,取得了较好的控制效果。In order to reduce the influence of disturbance torque variation on Seeker Servo Control System(SSCS)an adaptive Internal Model Control(IMC)scheme based on disturbance torque estimation is proposed.Firstly the mathematic model of the SSCS is established and an internal model controller is designed.The change of the rotating inertia of the SSCS is identified by using the method of disturbance torque estimation.According to the change of the rotating inertia the parameters of the internal model controller are adjusted automatically by the linear adaptive rate to ensure the control performance of the controller.The simulation and experimental results show that the control scheme has strong adaptability to the change of system working conditions which improves the anti-interference performance and robustness of the SSCS and achieves good control effects.

关 键 词：导引头 伺服控制系统 参数变化 内模控制 扰动转矩观测 自适应控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]