文档介绍：第八届海峡两岸航空航天学术研讨会 The on Aeronautics andAstronautics 直升机变结构鲁棒飞行控制系统设计万劢,苏媛(北京航空航天大学航空科学与工程学院,北京,100191) 摘要:运用滑模变结构控制(SMC)基本理论,提出一种直升机鲁棒飞行控制系统的频域设计方法。使用直升机降阶模型进行控制器的设计,将设计好的控制器应用到原高阶模型中进行验证。在设计过程中利用渐近状态观测器消除旋翼等未建模衍生动态的影响。引入作动器模型、驾驶员模型和观测器噪声,使变结构鲁棒控制系统设计更为有效实用;,进行设计验证及飞行品质评估。结果表明,直升机在系统参数摄动和外来扰动下,仍能保持良好的跟踪性能,体现了飞行控制系统的鲁棒性。关键词:滑模变结构控制;直升机降阶模型;渐近观测器;鲁棒控制 ARobust Helicopter Flight Control System Design Based on Variable Structure Control WanMai,SuYuan (School ofAeronautic Science andEngineering,Beijing University ofAeronautics andAstronautics, Beijing 100191,China) Abstract:A frequency domain design methodology based on sliding mode control applied to helicopter robust flight controller was designed upon helicopter reduced order model and testedupon thehelicopter originalhigh order observer was used toeliminate theeffect ofunmodeled parasiticdynamics such as rotor ,pilot model and observer noisy were utilized tomake thedesign more proposed approach was applied to an S-6 helicopter near ,handing qualities were resultdemonstrates agood trackperformance under parameters perturbation and externaldisturbance andverifiestherobustofthecontrolsystem. Key words:sliding mode control;helicopter reducedmodel;asymptotic observer;robust control 固定翼飞行器的鲁棒飞行控制技术已有