一类死区非线性系统的自适应控制

Adaptive Control of a Class of Nonlinear Systems with Dead Zones

针对一类具有死区输入的非线性系统,基于模糊逻辑系统的逼近能力,提出了自适应跟踪控制问题。通过设计控制函数,解决了未知死区输入问题。利用反推技术,提出一种新的自适应控制方案。该方案保证了闭环系统的所有信号一致有界,并且跟踪误差收敛到原点的小邻域内。

For a class of nonlinear systems with dead-zone inputs,an adaptive tracking control problem is proposed based on the approximation capability of fuzzy logic systems.The unknown dead zone input problem is solved by designing the control function.A new adaptive control scheme is proposed using the backstepping technique.The scheme ensures that all signals of the closed-loop system are uniformly bounded and the tracking error converges to the small neighborhood of the origin.