互联系统的分布输出反馈自适应动态面控制

Output-feedback adaptive dynamic surface decentralized control for interconnected systems

本文所提方案具有如下特点:1)通过使用初始化技术,给出了互联系统中各个子系统跟踪误差的L∞性能指标;2)采用动态面控制方法,避免了反推法带来的"微分爆炸"问题;3)通过估计未知参数向量范数,极大减轻了控制系统的计算负担;4)引入了一种高增益观测器,保证了互联系统中各个子系统跟踪误差可以收敛到任意小,仿真结果验证了所提方案的有效性.

The proposed scheme has features： 1） by using dynamic surface control technique, it eliminates the problem of differentiation explosion whieh is inherent to the backstepping design; 2） by estimating the norm of unknown parameter vectors, it reduces the computational burden greatly; 3） high gain observers are introduced, which forces the tracking error of each subsystem to converge to an arbitrarily small residual set. Simulation results are presented to illustrate the effectiveness of the proposed scheme.