现代控制论与控制实际之间存在一些"鸿沟",根据PID (Proportional-integral-derivative)控制器具有良好抗扰性的事实,提出了一种基于PID的二阶内反馈控制器(Second order of internal feedback controller, SO-IFC).基于在新...现代控制论与控制实际之间存在一些"鸿沟",根据PID (Proportional-integral-derivative)控制器具有良好抗扰性的事实,提出了一种基于PID的二阶内反馈控制器(Second order of internal feedback controller, SO-IFC).基于在新型"高效"滤波方法上的一些进展,将一种新型正弦跟踪滤波方法 (New sinusoid tracking filter, NSTF)运用于SO-IFC控制回路的噪声干扰滤波.针对被控对象的准确数学模型难以获取的问题,将一种根据过程增益(Process gain, PG)和过程总滞后(Process all lag, PAL)的工程参数整定方法 (Engineering parameter tuning method, EPTM)运用于SO-IFC参数的整定,降低了SO-IFC参数整定的难度.将SO-IFC运用于大滞后过程的控制,具有良好的控制性能包括良好的扰动抑制性能.数学分析、仿真实验和实际应用的结果验证了文中所提出观点和方法的正确性和有效性.展开更多
The tracking problem of nonholonomic mobile robots with uncertainties is investigated in this paper. An uncertain model of the nonholonomic kinematic system is presented based on the visual feedback and the state and ...The tracking problem of nonholonomic mobile robots with uncertainties is investigated in this paper. An uncertain model of the nonholonomic kinematic system is presented based on the visual feedback and the state and input transformations for a kind of mobile robots in chained form with uncertainties. Two transformations are exploited based on the idea of backstepping and the structure of tracking error system. Then, both an adaptive control law and a dynamic feedback robust controller are designed to track the desired trajectory by using Lyapunov direct method and the extended Barbalat Lemma. The asymptotic convergence of a closed-loop error system is proved rigorously. Finally, simulation results demonstrate the effectiveness of the proposed strategies.展开更多
文摘现代控制论与控制实际之间存在一些"鸿沟",根据PID (Proportional-integral-derivative)控制器具有良好抗扰性的事实,提出了一种基于PID的二阶内反馈控制器(Second order of internal feedback controller, SO-IFC).基于在新型"高效"滤波方法上的一些进展,将一种新型正弦跟踪滤波方法 (New sinusoid tracking filter, NSTF)运用于SO-IFC控制回路的噪声干扰滤波.针对被控对象的准确数学模型难以获取的问题,将一种根据过程增益(Process gain, PG)和过程总滞后(Process all lag, PAL)的工程参数整定方法 (Engineering parameter tuning method, EPTM)运用于SO-IFC参数的整定,降低了SO-IFC参数整定的难度.将SO-IFC运用于大滞后过程的控制,具有良好的控制性能包括良好的扰动抑制性能.数学分析、仿真实验和实际应用的结果验证了文中所提出观点和方法的正确性和有效性.
基金Supported by National Natural Science Foundation of China(61374040,61304004,61473179)Scientific Innovation Program(13Z Z115)+2 种基金Hujiang Foundation of China(C14002)Graduate Innovation Program of Shanghai(54-13-302-102)and the Natural Science Foundation of Shandong Province(ZR2013FM012,ZR2014FM007)
文摘The tracking problem of nonholonomic mobile robots with uncertainties is investigated in this paper. An uncertain model of the nonholonomic kinematic system is presented based on the visual feedback and the state and input transformations for a kind of mobile robots in chained form with uncertainties. Two transformations are exploited based on the idea of backstepping and the structure of tracking error system. Then, both an adaptive control law and a dynamic feedback robust controller are designed to track the desired trajectory by using Lyapunov direct method and the extended Barbalat Lemma. The asymptotic convergence of a closed-loop error system is proved rigorously. Finally, simulation results demonstrate the effectiveness of the proposed strategies.
