摘要
针对再入机动飞行器(MRV)动态的非线性和不确定性,将模糊自适应理论与鲁棒H2/H∞控制理论相结合,提出一种MRV的模糊自适应H2/H∞控制方法.该方法利用模糊逻辑系统逼近导弹模型的非线性函数,补偿其建模的不确定性;并且基于H2/H∞混合优化控制与非零和博弈理论,设计了鲁棒H2/H∞控制器补偿模糊系统的逼近误差和外界干扰,进而改善控制性能,使得性能指标在达到最优化的同时满足H2/H∞性能指标.通过仿真分析,验证了所提出控制方法的有效性.
A fuzzy adaptive H2/H∞ control is proposed for a maneuvering reentry vehicle（MRV）.The controller consists of two parts： An adaptive fuzzy controller which is constructed to approximate the uncertain nonlinear function,and a robust mixed H2/H∞ controller.Based on the mixed H2/H∞control and the non zero sum game theory,a robust H2/H∞ controller is designed to attenuate approximation errors of the fuzzy system and external disturbance,thus the controller performance is improved,while the controller possesses a optimal H2 performance index and meets the ∞performance index.Simulation studies demonstrate the effectiveness of the proposed controller.
出处
《控制与决策》
EI
CSCD
北大核心
2013年第9期1365-1371,共7页
Control and Decision
基金
第二炮兵装备部预研基金项目(103020101)
