摘要
针对一类不确定非线性系统 ,基于王立新 1 994年提出的监督控制方案并利用 II型模糊系统的逼近能力 ,提出了一种间接自适应模糊控制器设计的新方案 .该方案通过引入最优逼近误差的自适应补偿项来消除建模误差的影响 ,从而在稳定性分析中取消了要求逼近误差平方可积或逼近误差上确界已知的条件 .理论分析证明了闭环控制系统是全局稳定的 ,跟踪误差收敛到零 .仿真结果表明了该方法的有效性 .
A new scheme of indirect adaptive fuzzy control for a class of nonlinear systems is proposed. The design is based on the supervisory control strategy presented by Wang Li-Xin in 1994 and the approximation capability of the second type fuzzy systems. The adaptive compensation term of the optimal approximation error is adopted. The approach does not require the optimal approximation error to be square integrable of the supremum of the optimal approximation error to be known. By theoretical analysis, the closed-loop fuzzy control system is proven to be globally stable, with tracking error converging to zero. Simulation results demonstrate the effectiveness of the approach.
出处
《自动化学报》
EI
CSCD
北大核心
2002年第6期977-983,共7页
Acta Automatica Sinica
基金
国家自然科学基金 ( 6 0 0 74 0 13)
江苏省教育厅高校科研基金 ( 0 0 KJB510 0 0 6 )
扬州大学科研基金资助
关键词
自适应模糊控制器
设计
分析
非线性系统
模糊控制
自适应控制
全局稳定性
Adaptive control systems
Closed loop control systems
Computer simulation
Control equipment
Convergence of numerical methods
Fuzzy control
Mathematical models
Optimization
System stability
