Fuzzy adaptive backstepping robust control for SISO nonlinear system with dynamic uncertainties

Fuzzy adaptive backstepping robust control for SISO nonlinear system with dynamic uncertainties
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动态不确定性SISO非线性系统的模糊自适应反步鲁棒控制

DOI:
10.1016/j.ins.2009.01.002
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发表时间:
2009-04
影响因子:
8.1
通讯作者:
Tong, Shaocheng
Tong, Shaocheng
中科院分区:
计算机科学1区
文献类型:
--
作者:
Li, Yongming;Shi, Peng;Tong, Shaocheng

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本文针对一类具有三种不确定性的非线性系统提出了一种模糊自适应反推设计方法:(I)非线性不确定性;(Ii)未建模动态;(Iii)动态扰动。用模糊逻辑系统逼近非线性不确定性,用非线性阻尼项抵消动态扰动和模糊逼近误差,引入动态信号控制未建模动态。导出的模糊自适应控制方法保证了所有信号和状态的全局有界性,同时将输出引导到原点的一个小邻域。仿真研究表明了该方法的有效性。
In this paper, a fuzzy adaptive backstepping design procedure is proposed for a class of nonlinear systems with three types of uncertainties: (i) nonlinear uncertainties; (ii) unmodeled dynamics and (iii) dynamic disturbances. The fuzzy logic systems are used to approximate the nonlinear uncertainties, nonlinear damping terms are used to counteract the dynamic disturbances and fuzzy approximation errors, and a dynamic signal is introduced to dominate the unmodeled dynamics. The derived fuzzy adaptive control approach guarantees the global boundedness property for all the signals and states, and at the same time, steers the output to a small neighborhood of the origin. Simulation studies are included to illustrate the effectiveness of the proposed approach.
DOI: 10.1080/002071798222280
发表时间: 1998
影响因子: 2.1
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