Aimed at the finite-time stabilization problem of a class of flexible manipulators,a finite-time state feedback stabilization controller was proposed in this paper.Firstly,the nonlinear model of flexible manipulators ...Aimed at the finite-time stabilization problem of a class of flexible manipulators,a finite-time state feedback stabilization controller was proposed in this paper.Firstly,the nonlinear model of flexible manipulators was transformed into linear system through the exact state feedback linearization,and then using the finite time stabilization control method of the linear system,a finite-time state feedback stabilization controller was designed for the flexible manipulators.Furthermore,it was proved that all the states of flexible manipulators could be stabilized to equilibrium in finite-time under the proposed controller.The simulation results show that the performance of the flexible manipulators under the proposed finite-time state feedback controller is better than the traditional state-feedback controller.The proposed finite-time stabilization controller can improve the performance of the flexible manipulators.展开更多
提出一种基于精确反馈线性化的有源电力滤波器(active power filter,APF)准滑模变结构复合控制策略,解决了传统有源电力滤波器滑模控制器设计结构复杂及抖振问题。根据三相有源电力滤波器在d-q坐标系下的仿射非线性模型,推导相应的坐标...提出一种基于精确反馈线性化的有源电力滤波器(active power filter,APF)准滑模变结构复合控制策略,解决了传统有源电力滤波器滑模控制器设计结构复杂及抖振问题。根据三相有源电力滤波器在d-q坐标系下的仿射非线性模型,推导相应的坐标变换矩阵与状态反馈表达式,得到系统精确反馈线性化模型。针对此线性系统设计积分滑模函数,并证明等效控制的存在性与滑模控制的可达性。最终实现了准滑模变结构控制器设计,并给出参数选取范围。仿真与实验结果证明,该复合控制方法结合了精确反馈线性化控制与滑模控制的优点,具有较优的动态控制响应与稳态控制性能。展开更多
基金Sponsored by the Doctoral Fund of Ministry of Education of China(20070288022)the Natural Science Foundation of Jiangsu Province of China(BK2008404)the Young Teacher Academic Foundation of Nanjing University of Technology(39710013)
文摘Aimed at the finite-time stabilization problem of a class of flexible manipulators,a finite-time state feedback stabilization controller was proposed in this paper.Firstly,the nonlinear model of flexible manipulators was transformed into linear system through the exact state feedback linearization,and then using the finite time stabilization control method of the linear system,a finite-time state feedback stabilization controller was designed for the flexible manipulators.Furthermore,it was proved that all the states of flexible manipulators could be stabilized to equilibrium in finite-time under the proposed controller.The simulation results show that the performance of the flexible manipulators under the proposed finite-time state feedback controller is better than the traditional state-feedback controller.The proposed finite-time stabilization controller can improve the performance of the flexible manipulators.
文摘提出一种基于精确反馈线性化的有源电力滤波器(active power filter,APF)准滑模变结构复合控制策略,解决了传统有源电力滤波器滑模控制器设计结构复杂及抖振问题。根据三相有源电力滤波器在d-q坐标系下的仿射非线性模型,推导相应的坐标变换矩阵与状态反馈表达式,得到系统精确反馈线性化模型。针对此线性系统设计积分滑模函数,并证明等效控制的存在性与滑模控制的可达性。最终实现了准滑模变结构控制器设计,并给出参数选取范围。仿真与实验结果证明,该复合控制方法结合了精确反馈线性化控制与滑模控制的优点,具有较优的动态控制响应与稳态控制性能。
