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中文摘要：
针对可变机翼后掠角近空间飞行器存在严重非线性、强耦合等特性,在考虑控制器存在摄动的情况下,设计了可以平滑切换的多模型软切换保性能非脆弱控制方案.首先利用可测前提变量将系统的工作空间划分为多个子空间,然后在每一个子空间中根据给定的性能指标设计局部模糊鲁棒保性能非脆弱控制器.由于采用了广义系统的设计方法,有效地减少了求解的计算量和复杂度.系统的全局控制器由各局部控制器进行模糊加权得到,从而实现了软切换.对变机翼后掠角近空间飞行器的仿真实验表明了所提方法是有效的.
英文摘要：
For the near-space vehicle with variable sweep wings,we present a multi-model soft-switching costguaranteed non-fragile controller with perturbation gain to tackle the strong nonlinearity and interaction characteristics.According to the observable premise variables,the working space of the controller is divided into multiple subspaces.In each subspace,we design a local robust cost-guaranteed non-fragile fuzzy controller based on the required performance index.Because the descriptor system method is employed in the design,the computation complexity and cost are greatly reduced.The global controller of the system is obtained by fuzzy-weighting the local controllers to realize the soft-switching.Results of simulation experiments to a near-space vehicle validate the robust and the non-fragile performance of the proposed method.
同期刊论文项目
同项目期刊论文
Attitude Tracking Control for Variable Structure Near Space Vehicles Based on Switched Nonlinear Sys
Maintaining synchronization by decentralized feedback control in time delay neural networks with par
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