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针对一类单输入单输出未建模动态不确定非线性系统,提出一种模糊自适应backstepping控制方法.设计中利用模糊逻辑系统逼近系统的未知函数,应用非线性阻尼项抵消系统的非线性不确定项,通过引入一个动态信号克服未建模动态.该模糊自适应控制方法保证了整个闭环系统的有界性,输出信号可调节到零的小邻域内.仿真结果进一步验证了该方法的有效性.
In this paper, a fuzzy adaptive backstepping control method is proposed for a class of single-input / single-output unmodeled dynamic uncertain nonlinear systems. In the design, the fuzzy logic system is used to approximate the unknown function of the system, and the nonlinear damping is used to counteract the nonlinearity of the system Which can overcome the unmodeled dynamics by introducing a dynamic signal.The fuzzy adaptive control method ensures the boundedness of the entire closed-loop system and the output signal can be adjusted to a small neighborhood of 0. The simulation results further verify the effectiveness of the method Sex.