基于离散模糊滑模的飞行器角度跟踪控制  

Aircraft Angle-Following Using Discrete-Time Fuzzy Sliding-Mode Control

作　　者：曹立佳[1] 颜诗源[1] 张胜修[1] 仇召辉[2] 

机构地区：[1]第二炮兵工程学院303室,陕西西安710025 [2]96604部队,北京100192

出　　处：《控制工程》2011年第3期377-379,409,共4页Control Engineering of China

基　　金：国家自然科学基金资助项目(60874093)

摘　　要：为解决某型飞行器的角度跟踪控制问题,设计了离散模糊滑模角度跟踪控制算法。以飞行器在空间的姿态运动方程为基础建立了其短周期运动模型。基于离散时间模糊滑模算法,设计了双入双出的模糊控制器,将滑模切换函数及其变化率作为模糊控制器的输入,以模糊控制器的二维输出信号为依据调整滑模趋近律的参数,该算法在减小了系统的抖振同时,保持了控制器对模型不确定和外界干扰的不敏感性。仿真表明,该跟踪控制算法动态响应快,具有良好的跟踪性能和较强的鲁棒性。Discrete-time fuzzy sliding-mode control algorithm is proposed to solve the problems of angle-following control for a specific aircraft. The model of short-period dynamics based on the attitude equations is given firstly. And the fuzzy controller for double-in-double-out is designed, in which switch function of sliding-mode and its change rate are used as the input of fuzzy-logic controller, output are used to regulate the approximation law of sliding-mode. This algorithm can reduce chattering of system and make the angle-following controller is insensitive to the model uncertainty and disturbance. The simulation results reveal that the angel-following control has good tracking quality and robustness.

关 键 词：飞行器 角度跟踪 离散时间 模糊滑模控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]