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第28届中国控制与决策会议

作者： Yunxi Zhang Jia Liu Kuansheng Zou Tianjin Key Laboratory of Information Sensing and Intelligent Control School of Automation and Electrical EngineeringTianjin University of Technology and Education Institute of Semiconductors Chinese Academy of Sciences School of Electrical Engineering and Automation Jiangsu Normal University

ISBN: (纸本)9781467397155

Based on the finite time convergence stability theory,a finite time convergent sliding-mode guidance law with terminal impact angle constraint is *** considering the dynamics of the acceleration autopilot of a missile as a first-order lag,the autopilot lag is designed in the guidance *** is proved that the line-of-sight(LOS) rate can converge to zero before impact and the terminal flight path angle can meet the specified impact requirement in a finite ***,simulation results show the effectiveness of the proposed method.

关键词： Sliding-mode Finite-time convergence Guidance law Impact angle constraint Autopilot lag

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Gaussian Entropy Weight Pigeon-Inspired Optimization for Rectangular Waveguide Design

Gaussian Entropy Weight Pigeon-Inspired Optimization for Rec...

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2016 IEEE Chinese Guidance, Navigation and control Conference (IEEE CGNCC2016)

作者： Yuwei Hu Haibin Duan School of Electronics Engineering Beihang University IEEE Science and Technology on Aircraft Control Laboratory School of Automation Science and Electrical EngineeringBeihang University

ISBN: (纸本)9781467383196

In this paper,a hybrid model of Entropy Weight Method(EWM) and Gaussian Pigeon-Inspired Optimization(GPIO) is proposed to solve the problem of rectangular waveguide *** are four parameters involved in the design:length,width,relative permittivity and electrical *** goal is to optimize the combination of these parameters so that the waveguide achieves the best overall *** is employed in the building of the performance judging *** improved Pigeon-Inspired Optimization adopting Gaussian searching strategy is utilized for minimizing the function's *** experiments with basic PIO and Particle Swarm Optimization(PSO) are conducted,and the results verify that better design can be obtained with our proposed Gaussian Entropy Weight Pigeon-Inspired Optimization(GEWPIO) algorithm because of its utilization of information theory and non-linear searching strategy.

关键词： Gaussian Pigeon-Inspired Optimization(GPIO) Entropy Weight Method(EWM) Rectangular waveguide design

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Scenario-based Stochastic Model Predictive control for Wind Energy Conversion System

Scenario-based Stochastic Model Predictive Control for Wind ...

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第28届中国控制与决策会议

作者： Yang Zhou Yuntao Shi College of Electrical and Control Engineering North China University of Technology The Key Lab of Field Bus and Automation of Beijing

ISBN: (纸本)9781467397155

This paper develops an approach for wind energy conversion system(WECS) control based on stochastic model predictive control(SMPC).The structure combines the Markov chain that illustrates the WECS behavior,a stochastic optimization method based on scenario,and quadratic *** using quadratic programming,SMPC can generally handle larger dimension of state model than stochastic dynamic programming for changes of WECS *** simulation results demonstrate the effectiveness of the optimal control of WECS by scenario-based stochastic model predictive control algorithm.

关键词： Wind Energy Conversion System Markov Chain Scenarios Tree Stochastic Model Predictive control

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Robust Chattering Free Backstepping/Backstepping Sliding Mode control for Quadrotor Hovering

Robust Chattering Free Backstepping/Backstepping Sliding Mod...

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2016 IEEE Information Technology,Networking,Electronic and automation control Conference(ITNEC 2016)

作者： ZeFang He Long Zhao School of automation science and electrical engineering Beihang University Science and Technology on Aircraft Control Laboratory Beihang University

ISBN: (纸本)9781467391955

This paper presents a design method of robust nonlinear controller with inner-outer loop structure(robust chattering free backstepping/backstepping sliding mode controller). Because backstepping control and sliding mode control are in nature two different robust controllers, the combination of them brings up a controller which has stronger robustness for synthesizing their advantages. In this paper, the chattering of backstepping sliding mode controller can be effectively prevented by substituting sign function of the sliding mode exponential approaching rate with a simple saturation function. The controller adopts inner-outer loop control structure. The inner loop is used to stabilize attitude by adopting backstepping sliding mode controller. The outer loop is used to track position by adopting backstepping controller. Simulation results show that the control strategy proposed in this paper is effective and has strong robustness in the presence of aerodynamic torque disturbance and parameter uncertainty.

关键词： quadrotor helicopter hovering backstepping sliding mode controller chattering free robustness

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The Attitude control of UAV in Carrier Landing Based on ADRC

The Attitude Control of UAV in Carrier Landing Based on ADRC

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IEEE Chinese Guidance, Navigation and control Conference

作者： Yue Yu Honglun Wang Xingling Shao Yu Huang School of Automation Science and Electrical Engineering Beihang University Science and Technology on Aircraft Control Laboratory Beihang University

ISBN: (纸本)9781467383196

In this paper, the problem of unmanned aerial vehicle (UAV) pitch angle control is considered. We employ a method of active disturbance rejection control (ADRC) to solve the problem. Firstly, UAV model including windy and windless condition and disturbance model are introduced. Next, ADRC-based controller is designed for UAV model. Finally, a series of numerical simulations are presented. The simulation results demonstrate that ADRC has an excellent performance in terms of estimation of states and internal and external disturbance, attitude tracking, disturbance rejection and robustness to model uncertainties.

关键词： Mathematical model Atmospheric modeling Bandwidth Wind Observers Benchmark testing

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Enhancing BEM simulations of a stalled wind turbine using a 3D correction model

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Journal of Physics: Conference Series 2018年第1期974卷

作者： Galih Bangga Go Hutomo Taurista Syawitri Tri Kusumadewi Winda Oktavia Ahmad Sabila Herlambang Setiadi Muhamad Faisal Yongki Hendranata Dwi Lastomo Louis Putra Stefanus Kristiadi Ilmi Bumi Institute of Aerodynamics and Gas Dynamics University of Stuttgart Stuttgart Germany Mechanical Engineering Department Institut Teknologi Sepuluh Nopember Surabaya Indonesia Toyota SO Department Astra International Ltd. Indonesia Mechanical Engineering Department Universitas Muhammadiyah Surakarta Surakarta Indonesia School of Manufacturing System and Mechanical Engineering Sirindhorn International Institute of Technology Thammasat University Thailand Project Support and Cost Control Division Indoturbine Ltd. Jakarta Indonesia Civil Engineering Department Universitas Brawijaya Malang Indonesia School of Information Technology & Electrical Engineering The University of Queensland Brisbane Australia Non-Installation Top Range Department Berca Schindler Lifts Ltd. Indonesia Graduate Institute of Automation and Control National Taiwan University of Science and Technology Taiwan Mechanical Engineering Department Texas A&M University College Station United States PUI-PT Mechatronics and Industrial Automation Research Center Intitut Teknologi Sepuluh Nopember Surabaya Indonesia Mechanical Engineering Department Politecnico di Milano Milan Italy Aeronautics Department Imperial College of Science Technology and Medicine London United Kingdom Materials Engineering Department Institut Teknologi Sepuluh Nopember Surabaya Indonesia

Nowadays wind turbine rotors are usually employed with pitch control mechanisms to avoid deep stall conditions. Despite that, wind turbines often operate under pitch fault situation causing massive flow separation to occur. Pure Blade Element Momentum (BEM) approaches are not designed for this situation and inaccurate load predictions are already expected. In the present studies, BEM predictions are improved through the inclusion of a stall delay model for a wind turbine rotor operating under pitch fault situation of -2.3° towards stall. The accuracy of the stall delay model is assessed by comparing the results with available Computational Fluid Dynamics (CFD) simulations data.

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Fault detection and optimization for networked control systems with uncertain time-varying delay

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Journal of Systems engineering and Electronics 2015年第3期26卷 544-556页

作者： Qing Wang Zhaolei Wang Chaoyang Dong Erzhuo Niu School of Automation Science and Electrical Engineering Beihang University Beijing Aerospace Automatic Control Institute School of Aeronautic Science and Engineering Beihang University Flight Automatic Control Research Institute Aviation Industry Corporation

The observer-based robust fault detection filter design and optimization for networked control systems （NOSs） with uncer- tain time-varying delays are addressed. The NCSs with uncertain time-varying delays are modeled as parameter-uncertain systems by the matrix theory. Based on the model, an observer-based residual generator is constructed and the sufficient condition for the existence of the desired fault detection filter is derived in terms of the linear matrix inequality. Furthermore, a time domain opti- mization approach is proposed to improve the performance of the fault detection system. To prevent the false alarms, a new thresh- old function is established, and the solution of the optimization problem is given by using the singular value decomposition （SVD） of the matrix. A numerical example is provided to illustrate the effectiveness of the proposed approach.

关键词： fault detection networked control systems residual generator time-varying delay time domain optimization approach.

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Event-triggered control co-design for discrete-time systems subject to actuator saturation

Event-triggered control co-design for discrete-time systems ...

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IEEE International Symposium on Computer Aided control System Design (CACSD)

作者： L. B. Groff L. G. Moreira J. M. Gomes da Silva Department of Automation and Energy (DELAE) Pos-Graduation Program in Electrical Engineering (PPGEE) Porto Alegre-RS Brazil

In this paper we present a method to simultaneously design a static state feedback gain and the trigger function to stabilize discrete-time LTI systems subject to actuator saturation under an event-triggered strategy. We derive LMI-based conditions that ensure local (or global, when possible) asymptotic stability of the origin based on the Lyapunov theory. To tune the parameters, we propose convex optimization problems aiming at reducing the sampling activity. The efficiency of the proposed method is illustrated by numerical examples.

关键词： Actuators Asymptotic stability State feedback Closed loop systems Discrete-time systems Symmetric matrices

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Soil resistivity study and simulation with finite elements method 16

Soil resistivity study and simulation with finite elements m...

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16th International Conference on Environment and electrical engineering, EEEIC 2016

作者： Pereira, Thiago Martins De Lima, Rodrigo Alves Gomes, Viviane Margarida Gutembergue, Sostenes Alves, Aylton Jose Calixto, Wesley Pacheco Electrical Mechanical and Computer Engineering School EMC Federal University of Goias UFG Brazil Experimental and Technological Research and Study Group NExT Federal Institute of Goias IFG Brazil Program in Electronic Systems and Automation PGEA University of Brasilia UnB Brazil

ISBN: (纸本)9781509023196

This work purpose is to study the influence of concrete buried structures in grounding systems. Comparison of soil characteristics between dry and rainy seasons and soil electrical behavior was carried out. Simulations in finite element method was performed for tree layer stratified soil and the electrostatic equipotential surfaces were mapped into the region of interest. © 2016 IEEE.

关键词： Finite element method

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Optimal Four-impulse Ellipse-to-ellipse Coplanar Rendezvous

Optimal Four-impulse Ellipse-to-ellipse Coplanar Rendezvous

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第35届中国控制会议

作者： Xiwen Tian Yingmin Jia Changqing Chen The Seventh Research Division and the Center for Information and Control School of Automation Science and Electrical EngineeringBeihang University (BUAA) The Beijing Institute of Control Engineering and National Key Laboratory of Science and Technology on Space Intelligent Control

ISBN: (纸本)9781509009107

In this paper,the solution and distribution of optimal four-impulse coplanar rendezvous between two elliptical spacecrafts in low eccentricities are *** reference frame built in a circular orbit that is close to two spacecrafts,the relative dynamics described by linear time-invariable equations are *** initial relative states are processed appropriately to make the solution and distribution of four-impulse model simple in *** are provided to compare two kinds of guidance strategies,and the strategy proposed in this paper has better performance at guidance *** addition,the selection of reference frame has great influence on guidance error,and there exists precision-optimal reference *** distribution of four-impulse model is also illustrated.

关键词： optimal four-impulse rendezvous ellipse-to-ellipse rendezvous coplanar rendezvous

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