旋转弹控制耦合的分数阶滑模解耦  

Fractional Order Sliding Mode Decoupling of Rotating Missile Control Coupling

作　　者：戴树涛 陈华兵 程养民 杨宇星 DAI Shu-tao;CHEN Hua-bing;CHENG Yang-min;YANG Yu-xing(Xi’an Institute of Aerospace Propulsion Technology,Shaanxi Xi’an 710025,China)

机构地区：[1]西安航天动力技术研究所,陕西西安710025

出　　处：《现代防御技术》2020年第6期53-59,95,共8页Modern Defence Technology

摘　　要：针对绕自身纵轴旋转的导弹双通道舵系统产生的控制耦合问题,为了避免对传递函数矩阵求逆,提出一种基于滑模变结构控制原理的解耦方法。通过分析双通道耦合舵系统的状态空间模型,设计了相应的滑模控制律。并且为减小滑模控制方法的抖振,将滑模控制原理与分数阶微积分理论结合,设计了分数阶滑模解耦控制器。仿真结果表明,分数阶滑模解耦控制器能够解决传统的频域补偿解耦方法对参数摄动鲁棒性较差的问题,并减小滑模控制方法的抖振。Fractional Order Sliding Mode Decoupling of Rotating Missile Control Coupling Aiming at the problem of control coupling caused by the dual-channel actuator of missile rotating around its longitudinal axis,a decoupling method based on the sliding mode variable structure control principle is proposed in order to avoid inverting transfer function matrix.By analyzing the state space model of the dual-channel coupled actuator,the corresponding sliding mode control law is designed.In order to reduce the chatter of the sliding mode control method,the sliding mode control principle and the fractional order calculus theory are combined to design a fractional order sliding mode decoupling controller.Simulation results show that the fractional order sliding mode decoupling controller can solve the problem of poor robustness of the traditional frequency domain compensation decoupling method to parameter perturbation,and reduce the chatter of the sliding mode control method.

关 键 词：旋转导弹 舵机 解耦 滑模控制 分数阶理论 鲁棒性 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程] TP391.9[自动化与计算机技术—计算机应用技术]