基于微分代数方法的运载火箭自抗扰姿态控制  

Auto-disturbance-rejection attitude control of carrier rockets using differential algebraic approach

作　　者：赵党军[1,2] 李新民[3] 王永骥[1] 陈虹[1] 

机构地区：[1]华中科技大学图像信息处理与智能控制教育部重点实验室,湖北武汉430074 [2]武汉工程大学电气信息学院,湖北武汉430073 [3]北京航天自动控制研究所,北京100854

出　　处：《华中科技大学学报（自然科学版）》2011年第8期104-107,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家高技术研究发展计划资助项目(2008AA04Z207);国家自然科学基金资助项目(60975058);航天支撑基金资助项目(2010)

摘　　要：提出了一种基于微分代数方法的运载火箭自抗扰姿态控制方法.通过微分代数观测器得到输出的一、二阶导数估计,将二阶导数估计值作为模型摄动及外部扰动的观测值,在输出反馈控制器中加以补偿.控制器采用改进的PID控制算法,并给出了一种控制器参数选取方法.仿真结果表明:该方法不仅具有自抗扰的性质,而且对于火箭发动机停摆故障具备很好的容错控制性能.Based on automatic disturbing attitude control method,a differential algebraic approach for carrier rockets was proposed.The first-order and second-order derivative estimates from the observation of output were acted as compensation of the external disturbances and of internal perturbations in the output-feedback controller.An improved PID algorithm was used in the controller design,meanwhile an easy way to choose controller parameters was presented.The convincing numerical simulations indicate that the proposed method can deals well with various disturbances of the system,and handle with any unknown fault situations of servo-mechanisms.

关 键 词：运载火箭 姿态控制 微分代数方法 自抗扰 容错控制 

分 类 号：V448.1[航空宇航科学与技术—飞行器设计]