Sliding mode control based on proportion allocation for over-actuated saucer-shaped aircraft
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摘要: 为了避免一些执行机构提前出现饱和,针对具有位置约束的过驱动碟形飞行器,按照执行机构的约束范围,提出了一种比例分配策略.基于该策略,可以使双输入系统简化成单输入系统,并避免有执行机构提前出现饱和.考虑执行机构具有一阶动态特性和系统气动参数的不确定性,设计了滑模控制律.通过比例分配和伪逆分配的比较,得出了一种确定伪逆分配权矩阵的方法.仿真结果表明了该方法的正确性和有效性.
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关键词:
- 飞行器控制和导航技术 /
- 过驱动 /
- 控制分配 /
- 滑模控制 /
- 碟形飞行器
Abstract: In order to avoid some actuators saturation in advance, a proportion control allocation strategy was proposed in over-actuated saucer-shaped aircraft under position limits. The proportion was defined by the lower and upper position limits of the actuators. With the strategy, the system with two inputs was changed into one with single input, and the appearance of some actuators saturation in advance was avoided. The actuator dynamics and the uncertainty of the aerodynamic coefficients of the system were considered. A sliding mode control law was designed. The weighting matrix of the pseudoinverse control allocation was determined by comparison between proportion control allocation and pseudoinverse control allocation. Simulation results show that the proposed method is right and effective. -
[1] 闫彩霞,闫楚良,陆震.基于加权矩阵的过驱动并联机构驱动力矩调节法[J].吉林大学学报,2008,38(5):1215-1219 Yan Caixia,Yan Chuliang,Lu Zhen.Approach to coordinate driving torque of redundant actuated parallel manipulator based on weighted matrix[J].Journal of Jilin University,2008,38(5):1215-1219(in Chinese) [2] Hammad Ahmad,Trevor M Young,Daniel Toal,et al.Control allocation with actuator dynamics for aircraft flight controls .AIAA-2007-7828,2007 [3] Lin Zongli.Global control of linear systems with saturating actuators[J].Automatica,1998,34(7):897-905 [4] Byoung-Mun Min,Eung-Tai Kim,Min-Jea Tahk.Application of control allocation methods to SAT-II UAV .AIAA-2005-6411,2005 [5] Ola Hrkegrd.Backstepping and control allocation with applications to flight control .Linkping:Department of Electrical Engineering,Linkping University,2003 [6] 邓以高,顾文锦,赵红超,等.一类碟型飞行器质量/推力矢量复合控制研究[J].飞行力学,2005,23(3):28-31 Deng Yigao,Gu Wenjin,Zhao Hongchao,et al.Research on composite control of mass/thrust vectoring for a kind of saucer-like air vehicle[J].Flight Dynamics,2005,23(3):28-31 (in Chinese) [7] 张友安,李恒,梁国强.高性能飞航导弹的一种滑模控制器设计[J].飞行力学,2006,24(3):45-48 Zhang Youan,Li Heng,Liang Guoqiang.Design of sliding mode controller for an agile winged missile[J].Flight Dynamics,2006,24(3):45-48 (in Chinese) [8] 杨恩泉,高金源.先进战斗机控制分配方法研究进展[J].飞行力学,2005,23(3):1-4 Yang Enquan,Gao Jinyuan.Research and development on advanced fighter control allocation methods[J].Flight Dynamics,2005,23(3):1-4 (in Chinese) [9] 薛定宇.控制系统计算机辅助设计-MATLAB语言与应用[M].北京:清华大学出版社,2006:276-291 Xue Dingyu.Computer aided control systems design using MATLAB Language[M].Beijing:Tsinghua University Press,2006:276-291 (in Chinese)
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