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A review on DFACS(I):System design and dynamics modeling

Chinese Journal of Aeronautics 2024年第5期37卷 92-119页

作者： Bohan JIAO Qifan LIU Zhaohui DANG Xiaokui YUE Yonghe ZHANG Yuanqing XIA Li DUAN Qinglei HU Chenglei YUE Pengcheng WANG Ming GUO Zhansheng DUAN Bing CUI Chu ZHANG Xiaodong SHAO School of Astronautics Northwestern Polytechnical UniversityXi’an 710072China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 710699China School of Automation Beijing Institute of TechnologyBeijing 100081China Institute of Mechanics Chinese Academy of SciencesBeijing 710043China School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China School of Automation Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China

The Drag-Free and Attitude control System(DFACS)is a critical platform for various space missions,including high precision satellite navigation,geoscience and gravity field measurement,and space scientific experiments.This paper presents a comprehensive review of over sixty years of research on the design and dynamics model of DFACS.Firstly,we examine the open literature on DFACS and its applications in Drag-Free missions,providing readers with necessary background information on the field.Secondly,we analyze the system configurations and main characteristics of different DFACSs,paying particular attention to the coupling mechanism between the system configuration and dynamics model.Thirdly,we summarize the dynamics modeling methods and main dynamics models of DFACS from multiple perspectives,including common fundamentals and specific applications.Lastly,we identify current challenges and technological difficulties in the system design and dynamics modeling of DFACS,while suggesting potential avenues for future research.This paper aims to provide readers with a comprehensive understanding of the state-of-the-art in DFACS research,as well as the future prospects and challenges in this field.

关键词： Drag-Free DFACS System design Dynamics Modeling control design

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Output reachability analysis and output regulation control design of Boolean control networks

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Science China(Information Sciences) 2017年第2期60卷 18-29页

作者： Haitao LI Yuzhen WANG Peilian GUO School of Mathematical Science Shandong Normal University School of control Science and Engineering Shandong University

This paper investigates the output reachability and output regulation control design of Boolean control networks(BCNs) by using the semi-tensor product method, and presents a number of new results.First, the concept of output reachability is proposed for BCNs, and some necessary and sufficient conditions are presented for the verification of output reachability. Second, based on the output reachability of BCNs and the attractor set of the reference Boolean network, an effective method is proposed for the control design of the output regulation problem. The study of an illustrative example shows the effectiveness of the obtained new results.

关键词： Boolean control network output reachability output regulation control design semi-tensor prod uct of matrices

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Transient Damping of Virtual Synchronous Generator for Enhancing Synchronization Stability during Voltage Dips

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CES Transactions on Electrical Machines and Systems 2024年第2期8卷 143-151页

作者： Shitao Sun Yu Lei Guowen Hao Yi Lu Jindong Liu Zhaoxin Song Jie Zhang North China Electric Power Research Institute Co. Ltd. State Grid Xinyuan Co. Ltd. Hebei Fengning Pumped Storage Energy Co. Ltd.

Virtual synchronous generators(VSGs) are widely introduced to the renewable power generation, the variablespeed pumped storage units, and so on, as a promising gridforming solution. It is noted that VSGs can provide virtual inertia for frequency support, but the larger inertia would worsen the synchronization stability, referring to keeping synchronization with the grid during voltage dips. Thus, this paper presents a transient damping method of VSGs for enhancing the synchronization stability during voltage dips. It is revealed that the loss of synchronization(LOS) of VSGs always accompanies with the positive frequency deviation and the damping is the key factor to remove LOS when the equilibrium point exists. In order to enhance synchronization stability during voltage dips, the transient damping is proposed, which is generated by the frequency deviation in active power loop. Additionally, the proposed method can realize seamless switching between normal state and grid fault. Moreover, detailed control design for transient damping gain is given to ensure the synchronization stability under different inertia requirements during voltage dips. Finally, the experimental results are presented to validate the analysis and the effectiveness of the improved transient damping method.

关键词： Damping Voltage fluctuations control design Switches Power system stability Stability analysis Synchronous generators

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Iterative identification and control design with optimal excitation signals based on v-gap

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Science in China(Series F) 2009年第7期52卷 1120-1128页

作者： DOU LiQian ZONG Qun ZHAO ZhanShan JI YueHui School of Electrical and Automation Engineering Tianjin University Tianjin 300072 China

An iterative identification and control design method based on v-gap is given to ensure the stability of closed-loop system and control performance improvement. The whole iterative procedure includes three parts： the optimal excitation signals design, the uncertainty model set identification and the stable controller design. Firstly the worst case v-gap is used as the criterion of the optimal excitation signals design, and the design is performed via the power spectrum optimization. And then, an uncertainty model set is attained by system identification on the basis of the measure signals. The controller is designed to ensure the stability of closed-loop system and the closed-loop performance improvement. Simulation result shows that the proposed method has good convergence and closed-loop control performance.

关键词： excitation signals design control design iterative identification v-gap

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An Optimal control design of Organic Rankine Cycle under Disturbances

An Optimal Control Design of Organic Rankine Cycle under Dis...

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第37届中国控制会议

作者： Xialai Wu Lei Xie Junghui Chen Hongye Su Xiaochen Li State Laboratory of Industrial control Technology Institute of Cyber-Systems and ControlZhejiang UniversityYuquan Campus Department of Chemical Engineering Chung-Yuan Christian University

This paper deals with the control design of an Organic Rankine Cycle（ORC） considering the effect of the fluctuating heat source. A mechanistic nonlinear model of ORC is developed to predict the dynamic characters and an optimization problem of optimal control design is proposed to attain the optimal operating set-points and controller parameters simultaneously, which aims to maximize the waste heat recovery and guarantee the safe operation in the presence of disturbances. The performance comparison between optimal control design and conventional control design reflects the advantage of the optimal control design.

关键词： Organic Rankine Cycle control design Dynamic simulation

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Solvability and control design for Dynamic Synchronization of Boolean Networks

Solvability and Control Design for Dynamic Synchronization o...

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第二十九届中国控制会议

作者： HONG Yiguang,XU Xiangru Key Laboratory of Systems and control,Institute of Systems Science Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing 100190,P.R.China

In this paper,the synchronization of two Boolean networks is investigated via logic control design.Solvability condi-tions of the synchronization between the Boolean networks of the same dimension are given by means of semi-tensor product of matrices.Furthermore,both open-loop control and feedback control are proposed to make the slave network synchronized with the master Boolean network.

关键词： Boolean Networks Synchronization Semi-tensor Product control design

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Development of an autonomous flapping-wing aerial vehicle

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Science China(Information Sciences) 2017年第6期60卷 249-256页

作者： Wei HE Haifeng HUANG Yunan CHEN Wenzhen XIE Fusen FENG Yemeng KANG Changyin SUN School of Automation and Electrical Engineering University of Science and Technology Beijing School of Automation Southeast University

The flapping-wing aerial vehicle(FWAV) has appealed to more and more researchers recently owing to its outstanding performance in various domains and the development of some related technologies. The research on autonomous flight control of the FWAV involves many challenges and is still in nascent stages. In this work, we develop an FWAV with a mass of 14.1 g and build a vision-based experimental platform. A modelbased controller is proposed on the basis of theory and simulation results prove its effectiveness. A PID control algorithm based on visual measurement is utilized to achieve the height-keeping control of the FWAV, and a software platform is designed to record the flight status determined using Euler angles and position information.

关键词： flapping-wing aerial vehicle autonomous robot control design vision-based control unmanned aerial vehicle

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Nonlinear Coordinated Passivation control of Single Machine Infinite Bus Power System with Static Var Compensator

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Journal of Modern Power Systems and Clean Energy 2021年第6期9卷 1557-1565页

作者： Salma Keskes Souhir Salleem Larbi Chrifi-Alaoui Mohamed Ben Ali Kammoun Electric Machines and Power Networks control Laboratory from the Electrical Engineering Department National Engineering School of Sfax Innovative Technologies Laboratory University of Picardy Jules Verne

We propose a nonlinear coordinated control of the generator excitation and the static var compensator(SVC) in order to enhance the transient stability and voltage regulation of power system by the passivation approach. SVC is installed in the middle of the transmission line of power system and consists of a single machine infinite bus(SMIB) system. The design of the proposed controller consists of two parts. On one hand,the generator excitation controller is designed based on a backstepping controller. On the other hand, the conception of SVC control input is based on the coordinated passivation approach,which can guarantee the asymptotic stability of the closed-loop system. The simulation results show the effectiveness of the proposed controller compared with other methods, which ensures better performance than the uncoordinated control when the system is subjected to a disturbance.

关键词： Coordinated control passivation approach transient stability control design

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Identification and control of a small-scale helicopter

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第12期11卷 978-985页

作者： Abdelhakim DEBOUCHA Zahari TAHA Centre for Product design and Manufacturing University of Malaya Faculty of Manufacturing Engineering and Management Technology University Malaysia Pahang

designing reliable flight control for an autonomous helicopter requires a high performance dynamics model.In this paper,a nonlinear autoregressive with exogenous inputs (NLARX) model is selected as the mathematical structure for identifying and controlling the flight of a small-scale helicopter.A neural network learning algorithm is combined with the NLARX model to identify the dynamic component of the rotorcraft unmanned aerial vehicle (RUAV).This identification process is based on the well-known gradient descent learning algorithm.As a case study,the multiple-input multiple-output (MIMO) model predictive control (MPC) is applied to control the pitch motion of the helicopter.Results of the neural network output model are closely match with the real flight data.The MPC also shows good performance under various conditions.

关键词： Dynamics model System identification Black box Small-scale helicopter Neural networks (NNs) control design

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Comparison of generalized engine control and MPC based on maximum principle

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control Theory and Technology 2017年第2期15卷 150-157页

作者： Akira OHATA TECHNOVA Inc. The Imperial Hotel Tower 1-1 Uchisaiwai-cho 1 Chiyoda-ku Tokyo 100-0011 Japan

Automotive engine control has been continuously improved due to the strong demands from the society and the market since introducing electronic controls but not always following control theories. Therefore, it is not easy for researchers from academia and even engineers from the automotive industry to grasp the whole aspect of engine control. To encounter the issue, important features of engine control are extracted and generalized from the standpoint of control engineering. Comparisons of the control and model predictive control （MPC） showed an outstanding performance of the control generalized from engine controls and how to apply MPC in the framework.

关键词： Automotive engine history of engine control control design input constraints time delay model predictive control

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