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一类不确定快时变系统的确保性能鲁棒自适应控制 被引量：1

Robust Adaptive Control for a Class of Uncertain Fast Time-Varying Systems with Prescribed Performance
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摘要 本文研究了一类一阶不确定快时变系统的确保跟踪性能控制问题.通过引入一个状态变换,将带性能约束的控制问题转化为无约束问题,提出一个鲁棒自适应控制律.该控制律除能确保原系统满足给定的性能约束外,还使得新的状态变量的最终界只和某些控制器参数有关.由于控制器参数已知,因此本方法对该最终界有较好的估计.数值仿真验证了该方法的有效性. A tracking control with prescribed performance is investigated for a class of uncertain one-order fast time-varying systems.Such control problem is firstly transformed into one without constraints by introducing a state transformation.Then,a robust adaptive controller is proposed.Our scheme can ensure not only that the systems satisfy the given performance constraints,but also the ultimate bound of the new state variable only depends on some control parameters.As the control parameters are known,this scheme can provide a good estimation of this bound.Finally,numerical simulations verify the validity of the proposed approach.
作者 李公军
机构地区 北京控制工程研究所 空间智能控制技术重点实验室
出处 《空间控制技术与应用》 CSCD 北大核心 2016年第1期25-30,共6页 Aerospace Control and Application
基金 国家自然科学基金资助项目(61333008和61273153)
关键词 时变系统 快时变参数 鲁棒自适应控制 外部干扰 确保性能控制 time-varying system fast time-varying parameter robust adaptive control external disturbance prescribed performance control
分类号 TP273 [自动化与计算机技术—检测技术与自动化装置]
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参考文献12

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空间控制技术与应用
2016年 第1期

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