再入机动飞行器的模糊自适应H_2/H_∞控制  

Fuzzy adaptive H_2/H_∞ control for maneuvering reentry vehicle

作　　者：史震[1] 张玉芳[1] 王飞[1] 

机构地区：[1]哈尔滨工程大学自动化学院,哈尔滨150001

出　　处：《控制与决策》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)

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.

关 键 词：再入机动飞行器 H2 H∞控制 模糊自适应 不确定非线性 控制性能 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]