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针对参数不确定性非线性系统 ,分析了在未知扰动下的输出调节问题 ,提出了基于李亚普诺夫稳定性理论意义下的时变滑模变结构控制律 ,该控制律能保证系统误差的快速收敛性及对外部扰动和参数不确定性的不敏感性 ,最后给出的仿真实例证实了理论分析结果的正确性 .
Aiming at the nonlinear system with parametric uncertainties, the output adjustment problem under unknown disturbance is analyzed. A time-varying sliding mode variable structure control law based on Lyapunov stability theory is proposed. The control law can ensure fast system error Convergence and insensitivity to external disturbances and parameter uncertainties. Finally, the simulation examples are given to verify the correctness of the theoretical analysis.