A new sliding mode controller design method is proposed for a class of system with mismatched uncertainties such that the dynamic function restricted on the sliding surface is completely insensitive to the uncertainti...A new sliding mode controller design method is proposed for a class of system with mismatched uncertainties such that the dynamic function restricted on the sliding surface is completely insensitive to the uncertainties. A sufficient and necessary condition which the system possessing this sliding mode controller should satisfy is explicitly presented. The issue of chattering free is also explored. It is concluded that this class of mismatched term does not bring any chattering problem.Finally, a numerical example illustrates the developed method.展开更多
Y2001-62730-1451 0114420ATM 可用比特率拥挤控制的直接自适应控制器的收敛性=On the convergence of a direct adaptive controllerfor ATM ABR congestion control [会, 英]/Laberteaux,K. P. & Rohrs, C. E.//2000 IEEE Interna...Y2001-62730-1451 0114420ATM 可用比特率拥挤控制的直接自适应控制器的收敛性=On the convergence of a direct adaptive controllerfor ATM ABR congestion control [会, 英]/Laberteaux,K. P. & Rohrs, C. E.//2000 IEEE International Con-ference on Communications Vol. 3.—1451～1456(HC)展开更多
Y2001-62832-3501 0116218智能机控制(含6篇文章)=FM02:Intelligent vehiclecontrol[会,英]∥2000 IEEE American Control Confer-ence,Vol.5.—3501～3527(NiE)本部分收录6篇论文,内容涉及动态结构径向基函数神经网络飞行控制,自调整...Y2001-62832-3501 0116218智能机控制(含6篇文章)=FM02:Intelligent vehiclecontrol[会,英]∥2000 IEEE American Control Confer-ence,Vol.5.—3501～3527(NiE)本部分收录6篇论文,内容涉及动态结构径向基函数神经网络飞行控制,自调整模糊滑动模控制器,离散时间非线性伺服问题的保证性能伺服问题,不同结构神经网络和性能函数对机车控制的影响等。展开更多
A new sliding mode controller for semi-active suspension system with magnetorheological (MR) damper is presented in this paper. In the proposed sliding mode controller, a semi-active suspension based on the skyhook da...A new sliding mode controller for semi-active suspension system with magnetorheological (MR) damper is presented in this paper. In the proposed sliding mode controller, a semi-active suspension based on the skyhook damper system is chosen as the reference model to be followed, and the control law is so determined that the asymptotically stable error dynamics occurs between the controlled state and the reference model state. Numerical simulations are carried out to study the performance of the new sliding mode controller. The results show that the proposed controller yields almost perfect tracking to the reference model and has a high robustness against model parameter uncertainties and disturbances.展开更多
This paper introduces the mathematical model of ammonia and urea reactors and suggested three methods for designing a special purpose controller. The first proposed method is Adaptive model predictive controller, the ...This paper introduces the mathematical model of ammonia and urea reactors and suggested three methods for designing a special purpose controller. The first proposed method is Adaptive model predictive controller, the second is Adaptive Neural Network Model Predictive Control, and the third is Adaptive neuro-fuzzy sliding mode controller. These methods are applied to a multivariable nonlinear system as an ammonia–urea reactor system. The main target of these controllers is to achieve stabilization of the outlet concentration of ammonia and urea, a stable reaction rate, an increase in the conversion of carbon monoxide(CO) into carbon dioxide(CO_2) to reduce the pollution effect, and an increase in the ammonia and urea productions, keeping the NH_3/CO_2 ratio equal to 3 to reduce the unreacted CO_2 and NH_3, and the two reactors' temperature in the suitable operating ranges due to the change in reactor parameters or external disturbance. Simulation results of the three controllers are compared. Comparative analysis proves the effectiveness of the suggested Adaptive neurofuzzy sliding mode controller than the two other controllers according to external disturbance and the change of parameters. Moreover, the suggested methods when compared with other controllers in the literature show great success in overcoming the external disturbance and the change of parameters.展开更多
文摘A new sliding mode controller design method is proposed for a class of system with mismatched uncertainties such that the dynamic function restricted on the sliding surface is completely insensitive to the uncertainties. A sufficient and necessary condition which the system possessing this sliding mode controller should satisfy is explicitly presented. The issue of chattering free is also explored. It is concluded that this class of mismatched term does not bring any chattering problem.Finally, a numerical example illustrates the developed method.
文摘Y2001-62730-1451 0114420ATM 可用比特率拥挤控制的直接自适应控制器的收敛性=On the convergence of a direct adaptive controllerfor ATM ABR congestion control [会, 英]/Laberteaux,K. P. & Rohrs, C. E.//2000 IEEE International Con-ference on Communications Vol. 3.—1451～1456(HC)
文摘Y2001-62832-3501 0116218智能机控制(含6篇文章)=FM02:Intelligent vehiclecontrol[会,英]∥2000 IEEE American Control Confer-ence,Vol.5.—3501～3527(NiE)本部分收录6篇论文,内容涉及动态结构径向基函数神经网络飞行控制,自调整模糊滑动模控制器,离散时间非线性伺服问题的保证性能伺服问题,不同结构神经网络和性能函数对机车控制的影响等。
基金the Nature Science Foundation of China (No: 51035030) and the Applied and Basic Research Foundation of Chongqing University.
文摘A new sliding mode controller for semi-active suspension system with magnetorheological (MR) damper is presented in this paper. In the proposed sliding mode controller, a semi-active suspension based on the skyhook damper system is chosen as the reference model to be followed, and the control law is so determined that the asymptotically stable error dynamics occurs between the controlled state and the reference model state. Numerical simulations are carried out to study the performance of the new sliding mode controller. The results show that the proposed controller yields almost perfect tracking to the reference model and has a high robustness against model parameter uncertainties and disturbances.
文摘This paper introduces the mathematical model of ammonia and urea reactors and suggested three methods for designing a special purpose controller. The first proposed method is Adaptive model predictive controller, the second is Adaptive Neural Network Model Predictive Control, and the third is Adaptive neuro-fuzzy sliding mode controller. These methods are applied to a multivariable nonlinear system as an ammonia–urea reactor system. The main target of these controllers is to achieve stabilization of the outlet concentration of ammonia and urea, a stable reaction rate, an increase in the conversion of carbon monoxide(CO) into carbon dioxide(CO_2) to reduce the pollution effect, and an increase in the ammonia and urea productions, keeping the NH_3/CO_2 ratio equal to 3 to reduce the unreacted CO_2 and NH_3, and the two reactors' temperature in the suitable operating ranges due to the change in reactor parameters or external disturbance. Simulation results of the three controllers are compared. Comparative analysis proves the effectiveness of the suggested Adaptive neurofuzzy sliding mode controller than the two other controllers according to external disturbance and the change of parameters. Moreover, the suggested methods when compared with other controllers in the literature show great success in overcoming the external disturbance and the change of parameters.
