期刊文献+
共找到95篇文章
< 1 2 5 >
每页显示 20 50 100
Pure State Feedback Switching Control Based on the Online Estimated State for Stochastic Open Quantum Systems
1
作者 Shuang Cong Zhixiang Dong 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2024年第10期2166-2178,共13页
For the n-qubit stochastic open quantum systems,based on the Lyapunov stability theorem and LaSalle’s invariant set principle,a pure state switching control based on on-line estimated state feedback(short for OQST-SF... For the n-qubit stochastic open quantum systems,based on the Lyapunov stability theorem and LaSalle’s invariant set principle,a pure state switching control based on on-line estimated state feedback(short for OQST-SFC)is proposed to realize the state transition the pure state of the target state including eigenstate and superposition state.The proposed switching control consists of a constant control and a control law designed based on the Lyapunov method,in which the Lyapunov function is the state distance of the system.The constant control is used to drive the system state from an initial state to the convergence domain only containing the target state,and a Lyapunov-based control is used to make the state enter the convergence domain and then continue to converge to the target state.At the same time,the continuous weak measurement of quantum system and the quantum state tomography method based on the on-line alternating direction multiplier(QST-OADM)are used to obtain the system information and estimate the quantum state which is used as the input of the quantum system controller.Then,the pure state feedback switching control method based on the on-line estimated state feedback is realized in an n-qubit stochastic open quantum system.The complete derivation process of n-qubit QST-OADM algorithm is given;Through strict theoretical proof and analysis,the convergence conditions to ensure any initial state of the quantum system to converge the target pure state are given.The proposed control method is applied to a 2-qubit stochastic open quantum system for numerical simulation experiments.Four possible different position cases between the initial estimated state and that of the controlled system are studied and discussed,and the performances of the state transition under the corresponding cases are analyzed. 展开更多
关键词 Online state estimation state feedback control stochastic open quantum systems(OQST) switching control
下载PDF
Adaptive State Feedback Predictive Control and Expert Control for a Delayed Coking Furnace 被引量:14
2
作者 张伟勇 黄德先 +1 位作者 王毓栋 王京春 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2008年第4期590-598,共9页
An adaptive state feedback predictive control (SFPC) scheme and an expert control scheme are presented and applied to the temperature control of a 1200 kt·a^-1 delayed coking furnace, which is the key equipment... An adaptive state feedback predictive control (SFPC) scheme and an expert control scheme are presented and applied to the temperature control of a 1200 kt·a^-1 delayed coking furnace, which is the key equipment for the delayed coking process. Adaptive SFPC is used to improve the performance of temperature control in normal operation. A simplified nonlinear model on the basis of first principles of the furnace is developed to obtain a state space model by linearization. Taking advantage of the nonlinear model, an online model adapting method is presented to accommodate the dynamic change of process characteristics because of tube coking and load changes. To compensate the large inverse response of outlet temperature resulting from the sudden increase of injected steam of a particular velocity to tubes, a monitoring method and an expert control scheme based on heat balance calculation are proposed. Industrial implementation shows the effectiveness and feasibility of the proposed control strategy. 展开更多
关键词 delayed coking furnace adaptive control state feedback predictive control expert control
下载PDF
Comparative Study of Trajectory Tracking Control for Automated Vehicles via Model Predictive Control and Robust H-infinity State Feedback Control 被引量:13
3
作者 Kai Yang Xiaolin Tang +3 位作者 Yechen Qin Yanjun Huang Hong Wang Huayan Pu 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2021年第4期168-181,共14页
A comparative study of model predictive control(MPC)schemes and robust Hstate feedback control(RSC)method for trajectory tracking is proposed in this paper.The main objective of this paper is to compare MPC and RSC co... A comparative study of model predictive control(MPC)schemes and robust Hstate feedback control(RSC)method for trajectory tracking is proposed in this paper.The main objective of this paper is to compare MPC and RSC controllers’performance in tracking predefined trajectory under different scenarios.MPC controller is designed based on the simple longitudinal-yaw-lateral motions of a single-track vehicle with a linear tire,which is an approximation of the more realistic model of a vehicle with double-track motion with a non-linear tire mode.RSC is designed on the basis of the same method as adopted for the MPC controller to achieve a fair comparison.Then,three test cases are built in CarSim-Simulink joint platform.Specifically,the verification test is used to test the tracking accuracy of MPC and RSC controller under well road conditions.Besides,the double lane change test with low road adhesion is designed to find the maximum velocity that both controllers can carry out while guaranteeing stability.Furthermore,an extreme curve test is built where the road adhesion changes suddenly,in order to test the performance of both controllers under extreme conditions.Finally,the advantages and disadvantages of MPC and RSC under different scenarios are also discussed. 展开更多
关键词 Trajectory tracking Automated vehicles Model predictive control Robust H∞state feedback control
下载PDF
State Feedback Sliding Mode Control without Chattering by Constructing Hurwitz Matrix for AUV Movement 被引量:4
4
作者 Huan-Yin Zhou Kai-Zhou Liu Xi-Sheng Feng 《International Journal of Automation and computing》 EI 2011年第2期262-268,共7页
This paper presents a new method to eliminate the chattering of state feedback sliding mode control (SMC) law for the mobile control of an autonomous underwater vehicle (AUV) which is nonlinear and suffers from un... This paper presents a new method to eliminate the chattering of state feedback sliding mode control (SMC) law for the mobile control of an autonomous underwater vehicle (AUV) which is nonlinear and suffers from unknown disturbances system. SMC is a well-known nonlinear system control algorithm for its anti-disturbances capability, while the chattering on switch surface is one stiff question. To dissipate the well-known chattering of SMC, the switching manifold is proposed by presetting a Hurwitz matrix which is deducted from the state feedback matrix. Meanwhile, the best switching surface is achieved by use of eigenvalues of the Hurwitz matrix. The state feedback control parameters are not only applied to control the states of AUV but also connected with coefficients of switching surface. The convergence of the proposed control law is verified by Lyapunov function and the robust character is validated by the Matlab platform of one AUV model. 展开更多
关键词 Autonomous underwater vehicle (AUV) state feedback sliding mode control (SMC) switching manifold Hurwitz matrix Matlab platform Lyapunov function.
下载PDF
State Feedback Control for a Class of Fractional Order Nonlinear Systems 被引量:2
5
作者 Yige Zhao Yuzhen Wang Haitao Li 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI 2016年第4期483-488,共6页
Using the Lyapunov function method, this paper investigates the design of state feedback stabilization controllers for fractional order nonlinear systems in triangular form, and presents a number of new results. First... Using the Lyapunov function method, this paper investigates the design of state feedback stabilization controllers for fractional order nonlinear systems in triangular form, and presents a number of new results. First, some new properties of Caputo fractional derivative are presented, and a sufficient condition of asymptotical stability for fractional order nonlinear systems is obtained based on the new properties. Then, by introducing appropriate transformations of coordinates, the problem of controller design is converted into the problem of finding some parameters, which can be certainly obtained by solving the Lyapunov equation and relevant matrix inequalities. Finally, based on the Lyapunov function method, state feedback stabilization controllers making the closed-loop system asymptotically stable are explicitly constructed. A simulation example is given to demonstrate the effectiveness of the proposed design procedure. © 2014 Chinese Association of Automation. 展开更多
关键词 Closed loop systems Controllers Differentiation (calculus) Linear transformations Lyapunov functions Nonlinear systems STABILIZATION State feedback
下载PDF
The feedback control of fractional order unified chaotic system 被引量:2
6
作者 齐冬莲 杨捷 张建良 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第2期145-148,共4页
This paper studies the stability of the fractional order unified chaotic system. On the unstable equilibrium points, the equivalent passivity'' method is used to design the nonlinear controller. With the definition ... This paper studies the stability of the fractional order unified chaotic system. On the unstable equilibrium points, the equivalent passivity'' method is used to design the nonlinear controller. With the definition of fractional derivatives and integrals, the Lyapunov function is constructed by which it is proved that the controlled fractional order system is stable. With Laplace transform theory, the equivalent integer order state equation from the fractional order nonlinear system is obtained, and the system output can be solved. The simulation results validate the effectiveness of the theory. 展开更多
关键词 state feedback control fractional order unified chaotic system Lyapunov function
下载PDF
Geometric Structures of Stable Time-Variant State Feedback Systems 被引量:2
7
作者 仲锋惟 孙华飞 张真宁 《Journal of Beijing Institute of Technology》 EI CAS 2007年第4期500-504,共5页
A new technique for considering the stabilizing time-variant state feedback gains is proposed from the viewpoint of information geometry. First, parametrization of the set of all stabilizing time-variant state feedbac... A new technique for considering the stabilizing time-variant state feedback gains is proposed from the viewpoint of information geometry. First, parametrization of the set of all stabilizing time-variant state feedback gains is given. Moreover, a diffeomorphic structure between the set of stabilizing time-variant state feedback gains and the Cartesian product of positive definite matrix and skew symmetric matrix satisfying certain algebraic conditions is constructed. Furthermore, an immersion and some results about the eigenvalue locations of stable state feedback systems are derived. 展开更多
关键词 geometric structure state feedback IMMERSION DIFFEOMORPHISM
下载PDF
Mixed H_2/H_∞ State Feedback Attitude Control of Microsatellite Based on Extended LMI Method 被引量:2
8
作者 Keke Shi Chuang Liu +1 位作者 Feng Wang Zhaowei Sun 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2016年第5期15-22,共8页
For the appearance of the additive perturbation of controller gain when the controller parameter has minute adjustment at the initial running stage of system,to avoid the adverse effects,this paper investigates the mi... For the appearance of the additive perturbation of controller gain when the controller parameter has minute adjustment at the initial running stage of system,to avoid the adverse effects,this paper investigates the mixed H_2/H_∞ state feedback attitude control problem of microsatellite based on extended LMI method.Firstly,the microsatellite attitude control system is established and transformed into corresponding state space form.Then,without the equivalence restriction of the two Lyapunov variables of H_2 and H∞performance,this paper introduces additional variables to design the mixed H_2/H_∞ control method based on LMI which can also reduce the conservatives.Finally,numerical simulations are analyzed to show that the proposed method can make the satellite stable within 20 s whether there is additive perturbation of the controller gain or not.The comparative analysis of the simulation results between extended LMI method and traditional LMI method also demonstrates the effectiveness and feasibility of the proposed method in this paper. 展开更多
关键词 microsatellite attitude control mixed H2 / H∞ additive perturbationcontrol state feedback control extended LMI method
下载PDF
Robust adaptive control for a class of uncertain non-affine nonlinear systems using neural state feedback compensation 被引量:1
9
作者 赵石铁 高宪文 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第3期636-643,共8页
A robust adaptive control is proposed for a class of uncertain nonlinear non-affine SISO systems. In order to approximate the unknown nonlinear function, an affine type neural network(ATNN) and neural state feedback c... A robust adaptive control is proposed for a class of uncertain nonlinear non-affine SISO systems. In order to approximate the unknown nonlinear function, an affine type neural network(ATNN) and neural state feedback compensation are used, and then to compensate the approximation error and external disturbance, a robust control term is employed. By Lyapunov stability analysis for the closed-loop system, it is proven that tracking errors asymptotically converge to zero. Moreover, an observer is designed to estimate the system states because all the states may not be available for measurements. Furthermore, the adaptation laws of neural networks and the robust controller are given based on the Lyapunov stability theory. Finally, two simulation examples are presented to demonstrate the effectiveness of the proposed control method. Finally, two simulation examples show that the proposed method exhibits strong robustness, fast response and small tracking error, even for the non-affine nonlinear system with external disturbance, which confirms the effectiveness of the proposed approach. 展开更多
关键词 adaptive control neural networks uncertain non-affine systems state feedback Lyapunov stability
下载PDF
Disturbance Attenuation State-Feedback Control for Uncertain Interconnected Systems 被引量:1
10
作者 Chen Qi, Bai Jingfeng & Chen Yazhu Biomedical Instrument Institute, Shanghai Jiaotong University, Shanghai 200030, P. R. China 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2002年第4期66-72,共7页
This paper studies the problem of robust H∞ control design for a class of uncertain interconnected systems via state feedback. This class of systems are described by a state space model, which contains unknown nonlin... This paper studies the problem of robust H∞ control design for a class of uncertain interconnected systems via state feedback. This class of systems are described by a state space model, which contains unknown nonlinear interaction and time-varying norm-bounded parametric uncertainties in state equation. Using the Riccati-equation-based approach we design state feedback control laws, which guarantee the decentralized stability with disturbance attenuation for the interconnected uncertain systems. A simple example of an interconnected uncertain linear system is presented to illustrate the results. 展开更多
关键词 Interconnected system State feedback Internal stability H~∞ control.
下载PDF
State feedback design for singularly perturbed system using unified approach 被引量:1
11
作者 ChenxiaoCAI YunZOU DuanjinZHANG 《控制理论与应用(英文版)》 EI 2004年第3期276-280,共5页
The state feedback design for singularly perturbed systems described in Delta operator is considered. The composite state feedback controller for slow and fast subsystems is designed by using the direct method. The ob... The state feedback design for singularly perturbed systems described in Delta operator is considered. The composite state feedback controller for slow and fast subsystems is designed by using the direct method. The obtained results can bring previous conclusions of continuous and discrete time systems into the unified Delta framework. A simulation example is presented to demonstrate the validity and efficiency of the design. 展开更多
关键词 Singularly perturbed systems Delta operator State feedback
下载PDF
Nonlinear State Feedback Control of PEM Fuel Cell Systems 被引量:2
12
作者 E.S. Kim C.J. Kim 《Journal of Energy and Power Engineering》 2010年第2期8-14,共7页
In this paper, the nonlinear state feedback controller has been developed to control the pressures of the oxygen and the hydrogen in the PEM(Proton Exchange Membrane) fuel cell system. Nonlinear model of the PEM fue... In this paper, the nonlinear state feedback controller has been developed to control the pressures of the oxygen and the hydrogen in the PEM(Proton Exchange Membrane) fuel cell system. Nonlinear model of the PEM fuel cell system was introduced to study the design problems of the state observer and model based controller. A cascade observer using the filtering technique was used to estimate the pressure derivatives of the cathode and the anode in the system. In order to estimate the pressures of the cathode and the anode, the sliding mode observer was designed by using these pressure derivatives. To estimate the oxygen pressure and the hydrogen pressure in the system, the nonlinear state observer was designed by using the cathode pressure estimates and the anode it. These results will be very useful to design the state feedback controller. The validity of the proposed observers and the controller has been investigated by using a Lyapunov's stability analysis strategy. 展开更多
关键词 PEM fuel cell cascade observer sliding mode state feedback.
下载PDF
Delay-dependent H-infinity control for continuous time-delay systems via state feedback
13
作者 Xinchun JIA Yibo GAO +1 位作者 Jingmei ZHANG Nanning ZHENG 《控制理论与应用(英文版)》 EI 2007年第3期221-226,共6页
The delay-dependent H-infinity analysis and H-infinity control problems for continuous time-delay systems are studied. By introducing an equality with some free weighting matrices, an improved criterion of delay-depen... The delay-dependent H-infinity analysis and H-infinity control problems for continuous time-delay systems are studied. By introducing an equality with some free weighting matrices, an improved criterion of delay-dependent stability with H-infinity performance for such systems is presented, and a criterion of existence and some design methods of delay-dependent H-infinity controller for such systems are proposed in term of a set of matrix inequalities, which is solved efficiently by an iterative algorithm. Further, the corresponding results for the delay-dependent robust H-infinity analysis and robust H-infinity control problems for continuous time-delay uncertain systems are given. Finally, two numerical examples are given to illustrate the efficiency of the proposed method by comparing with the other existing results. 展开更多
关键词 Time-delay system Delay-dependent stability H-infinity control State feedback LMI approach
下载PDF
Feedback Control of Chaos in Delay Maps
14
作者 Zhang Yongdong Liu Yongqing & Liu Shutang Department of Automatic Control Engineering, South China University of Technology, Guangzhou 510640, P. R. China 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2001年第1期75-77,共3页
In this paper, we discuss feedback control of a class of delay chaotic maps. Our aim is to drive the chaotic maps to its initially unstable fixed points by using linear and nonlinear state feedback control. The contro... In this paper, we discuss feedback control of a class of delay chaotic maps. Our aim is to drive the chaotic maps to its initially unstable fixed points by using linear and nonlinear state feedback control. The control is achieved by using small, bounded perturbations. Some numerical simulations are given to demonstrate the effectiveness of the proposed control method. 展开更多
关键词 Chaos theory Computer simulation Matrix algebra Numerical analysis Perturbation techniques State feedback
下载PDF
Robust State Feedback Control of Wind-Excited Tall Buildings
15
作者 Liu Hui Tang Jia-xiang 《Wuhan University Journal of Natural Sciences》 EI CAS 2001年第3期709-714,共6页
The introduction of robust control theory into structure control, as well as design procedure of stabilizing controllers for structures with parameter uncertainty and model error is discussed. A stability bound is der... The introduction of robust control theory into structure control, as well as design procedure of stabilizing controllers for structures with parameter uncertainty and model error is discussed. A stability bound is derived from the polar decomposition of the nominal system matrix. In addition, our study shows that application of low pass filters avoids spillover by eliminating the unconsidered high frequency components. It is demonstrated, via an example, our approach leads to excellent control result and offers far better robustness than previous solutions. 展开更多
关键词 wind-exciting robust control state feedback ROBUSTNESS
下载PDF
New criteria on delayed state feedback stabilization for stochastic systems with time-varying delay
16
作者 Shiguo Peng 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2013年第3期519-527,共9页
The problems of robust exponential stability in mean square and delayed state feedback stabilization for uncertain stochastic systems with time-varying delay are studied. By using Jensen's integral inequality and com... The problems of robust exponential stability in mean square and delayed state feedback stabilization for uncertain stochastic systems with time-varying delay are studied. By using Jensen's integral inequality and combining with the free weighting matrix approach, new delay-dependent stability conditions and delayed state feedback stabilization criteria are obtained in terms of linear matrix inequalities. Meanwhile, the proposed delayed state feedback stabilization criteria are more convenient in application than the existing ones since fewer tuning parameters are involved. Numerical examples are given to illustrate the effectiveness of the proposed methods. 展开更多
关键词 stochastic system time-varying delay delay-depen- dent exponential stability delayed state feedback stabilization.
下载PDF
Finite-time State Feedback Stabilization Method for a Class of Flexible Manipulators
17
作者 王轶卿 李胜 陈庆伟 《Defence Technology(防务技术)》 SCIE EI CAS 2010年第4期284-288,共5页
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
关键词 automatic control technology flexible manipulators finite-time stabilization exact state feedback linearization
下载PDF
Robust H_∞ Stabilization of Uncertain Linear Time-Delay System with Delayed/Undelayed State Feedback Controllers
18
作者 陈万义 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2001年第4期71-76,共6页
This paper focuses on the H∞ controller design for linear systems with time-varying delays and norm-bounded parameter perturbations in the system state and control/disturbance. On the existence of delayed/undelayed f... This paper focuses on the H∞ controller design for linear systems with time-varying delays and norm-bounded parameter perturbations in the system state and control/disturbance. On the existence of delayed/undelayed full state feedback controllers, we present a sufficient condition and give a design method in the form of Riccati equation. The controller can not only stabilize the time-delay system, but also make the H∞ norm of the closed-loop system be less than a given bound. This result practically generalizes the related results in current literature. 展开更多
关键词 Closed loop control systems feedback control Linear control systems Perturbation techniques Riccati equations Robustness (control systems) State feedback System stability Time varying control systems Uncertain systems
下载PDF
State feedback stabilization for high-order stochastic nonlinear systems with zero dynamics
19
作者 Jie TIAN Xuejun XIE Chenghui ZHANG 《控制理论与应用(英文版)》 EI 2008年第1期74-79,共6页
In this paper, for a class of high-order stochastic nonlinear systems with zero dynamics which are neither necessarily feedback linearizable nor affine in the control input, the problem of state feedback stabilization... In this paper, for a class of high-order stochastic nonlinear systems with zero dynamics which are neither necessarily feedback linearizable nor affine in the control input, the problem of state feedback stabilization is investigated for the first time. Under some weaker assumptions, a smooth state feedback controller is designed, which ensures that the closed-loop system has an almost surely unique solution on [0,∞), the equilibrium at the origin of the closed-loop system is globally asymptotically stable in probability, and all the states can be regulated to the origin almost surely. A simulation example demonstrates the control scheme. 展开更多
关键词 High-order stochastic nonlinear systems Zero dynamics State feedback STABILIZATION
下载PDF
Optimal state feedback control of brushless direct-current motor drive systems based on Lyapunov stability criterion
20
作者 WANG Wei JIN Ruo-jun JIANG Jing-ping 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2007年第12期1889-1893,共5页
This paper develops a unified methodology for a real-time speed control of brushless direct-current motor drive systems in the presence of measurement noise and load torque disturbance. First, the mathematical model a... This paper develops a unified methodology for a real-time speed control of brushless direct-current motor drive systems in the presence of measurement noise and load torque disturbance. First, the mathematical model and hardware structure of system is established. Next, an optimal state feed back controller using the Kalman filter state estimation technique is derived. This is followed by an adaptive control algorithm to compensate for the effects of noise and disturbance. Those two algorithms working together can provide a very-high-speed regulation and dynamic response over a wide range of operating conditions. Simulated responses are presented to highlight the effectiveness of the proposed control strategy. 展开更多
关键词 Brushless DC motor Adaptive control Optimal state feedback
下载PDF
上一页 1 2 5 下一页 到第
使用帮助 返回顶部