一种基于标称点和干扰观测器设计的天线俯仰伺服控制系统  

A servo control system for antenna pitch based on nominal point and disturbance observer design

作　　者：侯官茂 HOU Guanmao(Southwest Institute of Electronic Equipment,Chengdu 610036,China)

机构地区：[1]西南电子设备研究所,成都610036

出　　处：《空间电子技术》2024年第6期66-73,共8页Space Electronic Technology

基　　金：国家自然科学基金项目(编号:U20B2043)。

摘　　要：针对一种天线俯仰伺服系统的设计展开研究。首先介绍了俯仰伺服系统总体设计方案,系统主要由俯仰机构子系统和驱动控制子系统组成。其次对系统被控对象进行数学建模,包括建立电机和机械传动的数学模型。同时为克服系统的非线性特性和干扰特性,创新性的采用了基于标称点和干扰观测器的三回路比例积分微分控制方案进行控制系统设计,主要是对电流环校正器、速度环校正器、位置环校正器和干扰观测器的设计。最后进行了仿真验证,仿真结果表明所设计的控制系统具有良好的位置跟踪性能和鲁棒性;并通过实装实验,进一步验证了所设计的伺服控制系统具备良好的俯仰角位置跟踪性能。This paper focuses on the design of an antenna pitch servo system.The entire article first introduces the overall scheme of the pitch servo system,which is mainly composed of the pitch mechanism subsystem and the drive control subsystem.Then,mathematical modeling is carried out on the controlled object of the system,including the establishment of mathematical models for the motor and mechanical transmission.To overcome the nonlinear and interference characteristics of the system,this paper innovatively adopts a three loop proportional-integral-derivative control scheme based on nominal point and disturbance observer for control system design,mainly focusing on the design of current loop corrector,speed loop corrector,position loop corrector,and disturbance observer.Finally,simulation verification was conducted,and the simulation results showed that the designed control system has good position tracking performance and robustness;and through practical experiments,it was further verified that the designed servo control system has good pitch angle position tracking performance.

关 键 词：俯仰伺服 比例积分微分 标称点 干扰观测器 

分 类 号：V443[航空宇航科学与技术—飞行器设计] TP272[自动化与计算机技术—检测技术与自动化装置]