检索结果-内蒙古大学图书馆

Corrigendum to “Stabilizing Parametric Region of Multiloop PID controllers for Multivariable Systems Based on Equivalent Transfer Function”

引用

Mathematical Problems in engineering 2017年第1期2017卷

作者： Xiaoli Luan Qiang Chen Pedro Albertos Fei Liu Key Laboratory of Advanced Process Control for Light Industry Ministry of Education and the Institute of Automation Jiangnan University Wuxi 214122 *** Department of System Engineering and Automatica Universidad Politécnica de Valencia 46022 Valencia Spainupv.es

来源：评论

学校读者我要写书评

暂无评论

Sliding Mode Observer based Composite controller for Spacecraft Attitude control System with Reaction Wheel Friction 34

Sliding Mode Observer based Composite Controller for Spacecr...

引用

第三十四届中国控制会议

作者： ZHANG Peixi QIAO Jianzhong ZHANG Yabin GUO Lei WANG Sen School of Instrumentation Science and Opto-Electronics Engineering Beihang University National Key Laboratory of Aerospace Intelligent Control Technology Beijing Aerospace Automatic Control Institute School of Automation Science and Electrical Engineering Beihang University

ISBN: (纸本)9781467374439

An anti-disturbance controller which considers the reaction wheel friction dynamic is proposed for spacecraft attitude control system to overcome the deterioration of performance under reaction wheel friction. The dynamic model of the system, including the reaction wheel dynamic and the spacecraft dynamic, is given beforehand. Then in order to counteract the effect of the reaction wheel friction, a sliding mode observer is designed to obtain the friction estimation. Finally a H controller is adopted to attenuate the estimate error and other bounded disturbances, such as the environment disturbance. The simulation on the microsatellite attitude control system demonstrates the correctness and effectiveness of the proposed method.

关键词： Attitude control,Reaction wheel friction,Sliding mode observer,H_∞ control

来源：评论

学校读者我要写书评

暂无评论

Sliding Mode control for Mars Entry with Flatness and Extended State Observer 34

Sliding Mode Control for Mars Entry with Flatness and Extend...

引用

第三十四届中国控制会议

作者： LU Kunfeng XIA Yuanqing YU Chunmei ZHOU Liuyu Beijing Aerospace Automatic Control Institute National key laboratory of science and technology on aerospace intelligent control School of Automation Beijing Institute of Technology Aerospace and Materials Engineering National University of Defense Technology Electrical Engineering Stanford University

ISBN: (纸本)9781467374439

This paper addresses high-precision Mars entry guidance and control approach via sliding mode control(SMC) and Extended State Observer(ESO). First, differential flatness(DF) approach is applied to the dynamic equations of the entry *** presented control law requires no information on high uncertainties that are estimated by ESO. Finally, simulation results are presented to demonstrate the effectiveness of the proposed approach.

关键词： Mars entry guidance and control,sliding mode control,Extended State Observer,Monte Carlo

来源：评论

学校读者我要写书评

暂无评论

Optimal control of quantum systems with SU(1,1)dynamical symmetry

引用

control Theory and Technology 2015年第3期13卷 211-220页

作者： Wenbin DONG Rebing WU Jianwu WU Chunwen LI Tzyh-Jong TARN Department of Automation Tsinghua University Center for Quantum Information Science and Technology Tsinghua National Laboratory for Information Science and Technology(TNlist) Beijing Aerospace Automatic Control Institute Electrical and Systems Engineering Department Washington University in St.Louis

SU（1,1） dynamical symmetry is of fundamental importance in analyzing unbounded quantum systems in theoretical and applied physics. In this paper, we study the control of generalized coherent states associated with quantum systems with SU（1,1） dynamical symmetry. Based on a pseudo Riemannian metric on the SU（1,1） group, we obtain necessary conditions for minimizing the field fluence of controls that steer the system to the desired final state. Further analyses show that the candidate optimal control solutions can be classified into normal and abnormal extremals. The abnormal extremals can only be constant functions when the control Hamiltonian is non-parabolic, while the normal extremals can be expressed by Weierstrass elliptic functions according to the parabolicity of the control Hamiltonian. As a special case, the optimal control solution that maximally squeezes a generalized coherent state is a sinusoidal field, which is consistent with what is used in the laboratory.

关键词： Quantum control optimal control dynamical symmetry

来源：评论

学校读者我要写书评

暂无评论

Data-driven PID controller Design for Continuous Stirred Tank Reactor 34

Data-driven PID Controller Design for Continuous Stirred Tan...

引用

第三十四届中国控制会议

作者： XU Dezhi LIU Fei ZHOU Hongcheng ZHANG Qiang Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Institute of Automation Jiangnan University Institute of Information JinLing Institute of Technology School of Electrical Engineering University of Jinan

ISBN: (纸本)9789881563897

Since most chemical processes exhibit severe nonlinear and time-varying behavior, the control of such processes is challenging. In this paper, we propose data-driven controller design method based on lazy learning for chemical processes. Using a lazy learning algorithm, a local valid linear model denoting the current state of system is automatically exacted for adjusting the PID controller parameters based on input/output data. This scheme can adjust the PID parameters in an online manner even if the system has nonlinear properties. The simulation results on the dynamic model of Continuous Stirred Tank Reactor(CSTR) are provided to demonstrate the effectiveness of the proposed new control techniques.

关键词： PID,Data-driven,Lazy learning,Continuous Stirred Tank Reactor(CSTR)

来源：评论

学校读者我要写书评

暂无评论

A novel two-stage Lagrangian decomposition approach for refinery production scheduling with operational transitions in mode switching

引用

Chinese Journal of Chemical engineering 2015年第11期23卷 1793-1800页

作者：施磊江永亨王凌黄德先 Institute of Process Control Engineering Department of AutomationTsinghua University Tsinghua National Laboratory for Information Science and Technology Tsinghua University

To address large scale industrial processes,a novel Lagrangian scheme is proposed to decompose a refinery scheduling problem with operational transitions in mode switching into a production subproblem and a blending and delivery *** accelerate the convergence of Lagrange multipliers,some auxiliary constraints are added in the blending and delivery subproblem.A speed-up scheme is presented to increase the efficiency for solving the production *** initialization scheme of Lagrange multipliers and a heuristic algorithm to find feasible solutions are *** results on three cases with different lengths of time horizons and different numbers of orders show that the proposed Lagrangian scheme is effective and efficient.

关键词： Refinery scheduling Operational transitions Lagrangian decomposition

来源：评论

学校读者我要写书评

暂无评论

Disturbance Estimation and Compensation for Drag-Free Satellite Based on Frequency Domain Disturbance Observer

Disturbance Estimation and Compensation for Drag-Free Satell...

引用

The Society of Instrument and control Engineers Annual Conference 2015

作者： Chi Weijie Qiao Jianzhong Zhu Yukai Guo Lei School of Instrument Science and Opto-electronics Engineering Beihang University National Key Laboratory of Aerospace Intelligent Control Technology Beijing Aerospace Automatic Control Institute School of Automation Science and Electrical Engineering Beihang University

ISBN: (纸本)9784907764487

Gravity gradient measurement satellite is a kind of drag-free satellite and suffers from multiple disturbances in the low earth orbit. So the disturbances estimation and compensation for the drag-free satellite is very important to improve measurement precision. In this paper, the characteristics of multiple disturbances are analyzed. Then, the frequency domain disturbance observer is designed for disturbance estimation and compensation. Next, a composite controller combining the frequency domain disturbance observer with PID controller is presented to reject and attenuate the multiple disturbances. At last, the simulation verification is carried out to verify the effectiveness of the proposed method.

关键词： drag-free satellite,multiple disturbances,frequency domain disturbance observer

来源：评论

学校读者我要写书评

暂无评论

Robust output feedback NMPC with guaranteed constraint satisfaction

引用

IFAC-PapersOnLine 2015年第14期48卷 326-331页

作者： Sankaranarayanan Subramanian Sergio Lucia Radoslav Paulen Sebastian Engell Process Dynamics and Operations Group TU Dortmund Otto-von-Guericke-University Magdeburg Laboratory for Systems Theory and Automatic Control Institute of Automation Engineering Germany

Nonlinear Model Predictive control (NMPC) employs a plant model to compute a sequence of optimal control inputs for a finite horizon. As, in reality, there always exists a plant-model mismatch and not all states of the plant can be measured, the NMPC scheme must be robust to plant uncertainties and to estimation errors. Different robust NMPC strategies have been proposed to deal with these uncertainties. Among them, a multi-stage NMPC, which is based upon a scenario tree of future plant evolutions, is less conservative compared to worst-case open-loop approaches because the presence of feedback at future sampling instants is explicitly considered. In multi-stage output feedback NMPC, additional scenarios are created by sampling the innovations that are used to estimate the future states of the plant along the scenario tree. In this paper, we refine our previously published approach to include state estimation errors. Moreover we extend the scheme to guarantee robust constraint satisfaction by calculating reachable sets using Taylor models. The method is demonstrated for a nonlinear chemical process example.

关键词： Predictive control Robust control Output feedback Nonlinear control systems

来源：评论

学校读者我要写书评

暂无评论

Disturbance estimation and compensation for drag-free satellite based on frequency domain disturbance observer 54

Disturbance estimation and compensation for drag-free satell...

引用

54th Annual Conference of the Society of Instrument and control Engineers of Japan, SICE 2015

作者： Weijie, Chi Jianzhong, Qiao Yukai, Zhu Lei, Guo School of Instrument Science and Opto-electronics Engineering Beihang University Beijing China School of Automation Science and Electrical Engineering Beihang University Beijing China National Key Laboratory of Aerospace Intelligent Control Technology Beijing Aerospace Automatic Control Institute Beijing China

ISBN: (纸本)9784907764487

关键词： Satellites

来源：评论

学校读者我要写书评

暂无评论

A Composite Guidance Law based on the Nonlinear Disturbance Observer-based control for Mars Pinpoint Landing

A Composite Guidance Law based on the Nonlinear Disturbance ...

引用

第三十四届中国控制会议

作者： ZHANG Yabin GUO Lei SUN Haibin CHEN Wenhua WANG Sen School of Instrument Science and Opto-Electronics Engineering Beihang University National Key Laboratory of Aerospace Intelligent Control Technology Beijing Aerospace Automatic Control Institute School of Automation Science and Electrical Engineering Beihang University Department of Aeronautical and Automotive Engineering Loughborough University

ISBN: (纸本)9781467374439

The landing accuracy of a Mars lander is severely affected by a wide range of disturbances at the powered descent stage. To address this problem, a composite guidance law is proposed in this paper. The composite guidance law is developed by the combination of disturbance observer-based control(DOBC) technique and multiple sliding surfaces guidance(MSSG)theory. Compared with other guidance laws, the proposed method achieves promising disturbance rejection performance and high landing accuracy in both position and velocity, reducing the conservatism to a certain extent. The proposed guidance law does not require any off-line trajectory generation and its global stability is verified by using Lyapunov direct method. Simulation results show that the proposed guidance law is superior to the conventional guidance laws in terms of both disturbance rejection and landing accuracy.

关键词： Mars pinpoint landing,powered descent,disturbance observer-based control,multiple sliding surfaces guidance,multiple disturbances

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：