静不稳定无人机伪攻角三回路驾驶仪设计研究  

Design and Research on Pseudo Angle of Attack Three-loop Autopilot of Statically Unstable UAV

作　　者：盛启辉 赵璐 李允伟 黄子露 Sheng Qihui;Zhao Lu;Li Yunwei;Huang Zilu(AVIC Hongdu,Nanchang,Jiangxi,330024;Jiangxi Precision Guided Technology Engineering Research Center,Nanchang,Jiangxi,330024)

机构地区：[1]中航工业洪都,江西南昌330024 [2]江西省精确制导技术工程研究中心,江西南昌330024

出　　处：《教练机》2025年第1期57-62,共6页Trainer

摘　　要：静不稳定机体是典型的不稳定非最小相位系统,RHP零点和RHP极点限制和约束了驾驶仪的设计。根据期望的时域性能指标,转化为期望的闭环极点,应用状态反馈对不稳定对象进行极点配置,设计了伪攻角三回路驾驶仪的控制参数,得到较好的频域和时域性能。对动力系数ɑ2摄动进行分析,表明动力系数ɑ2摄动对时域性能影响较大,频域性能影响较小。As the statically unstable airframe is a typical unstable non-minimum-phase system,RHP zero and RHP pole restrict the design of autopilot.According to the desired time domain performance index,the desired closed-loop pole can be converted so as to set up the pole configuration as per unstable objects by applying status feedback.Therefore,the control parameter of pseudo angle of attack three-loop autopilot is designed to gain better frequency domain and time domain performance.Based on analyzing the perturbation of the aerodynamic coefficientɑ2,it is found that the perturbation of aerodynamic coefficient would have greater affect on performance of time domain and smaller affect on that of frequency domain.

关 键 词：静不稳定 非最小相位 伪攻角 极点配置 

分 类 号：TN9[电子电信—信息与通信工程]