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Randomized Algorithms for Probabilistic Optimal Robust Performance Controller Design 认领 引用 被引量：1
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作者 宋春雷 谢玲 《Journal of Beijing Institute of Technology》 EI CAS 2004年第1期15-19,共5页
Polynomial-time randomized algorithms were constructed to approximately solve optimal robust performance controller design problems in probabilistic sense and the rigorous mathematical justification of the approach wa... Polynomial-time randomized algorithms were constructed to approximately solve optimal robust performance controller design problems in probabilistic sense and the rigorous mathematical justification of the approach was given. The randomized algorithms here were based on a property from statistical learning theory known as (uniform) convergence of empirical means (UCEM). It is argued that in order to assess the performance of a controller as the plant varies over a pre-specified family, it is better to use the average performance of the controller as the objective function to be optimized, rather than its worst-case performance. The approach is illustrated to be efficient through an example. 展开更多
关键词 randomized algorithms statistical learning theory uniform convergence of empirical means (UCEM) probabilistic optimal robust performance controller design
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Controller design of uncertain nonlinear systems based on T-S fuzzy model 认领 引用 被引量：3
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作者 Songtao ZHANG Shizhen BAI 《控制理论与应用（英文版）》 2009年第2期139-143,共5页
A robust control for uncertain nonlinear systems based on T-S fuzzy model is discussed in this paper. First, a T-S fuzzy system is adopted to model the uncertain nonlinear systems. Then, for the system with input vari... A robust control for uncertain nonlinear systems based on T-S fuzzy model is discussed in this paper. First, a T-S fuzzy system is adopted to model the uncertain nonlinear systems. Then, for the system with input variables adopting standard fuzzy partitions, the efficient maximal overlapped-rules group （EMORG） is presented, and a new sufficient condition to check the stability of T-S fuzzy system with uncertainty is derived, which is expressed in terms of Linear Matrix Inequalities. The derived stability condition, which only requires a local common positive definite matrix in each EMORG, can reduce the conservatism and difficulty in existing stability conditions. Finally, a simulation example shows the proposed approach is effective. 展开更多
关键词 Controller design Uncertain nonlinear systems T-S fuzzy model
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Robust H_∞ Controller Design for Uncertain Neutral Systems via Dynamic Observer Based Output Feedback 认领 引用 被引量：5
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作者 Fatima El Haoussi El Houssaine Tissir 《International Journal of Automation and computing》 2009年第2期164-170,共7页
In this paper, the dynamic observer-based controller design for a class of neutral systems with H∞ control is considered. An observer-based output feedback is derived for systems with polytopic parameter uncertaintie... In this paper, the dynamic observer-based controller design for a class of neutral systems with H∞ control is considered. An observer-based output feedback is derived for systems with polytopic parameter uncertainties. This controller assures delay-dependent stabilization and H∞ norm bound attenuation from the disturbance input to the controlled output. Numerical examples are provided for illustration and comparison of the proposed conditions. 展开更多
关键词 Neutral systems delay-dependent conditions H∞ control design observer linear matrix inequality （LMI） time varyingdelay systems polytopic uncertainties.
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Systematic Logic Controller Design as Sequential Function Chart Starting from Informal Specifications 认领 引用
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作者 Sven Lohmann Sebastian Engell 《Chinese Journal of Chemical Engineering》 SCIE EI CAS 2008年第1期43-47,共5页
Today's automation industry is driven by the need for an increased productivity,higher flexibility,and higher individuality,and characterized by tailor-made and more complex control solutions.In the processing ind... Today's automation industry is driven by the need for an increased productivity,higher flexibility,and higher individuality,and characterized by tailor-made and more complex control solutions.In the processing industry,logic controller design is often a manual,experience-based,and thus an error-prone procedure.Typically,the specifications are given by a set of informal requirements and a technical flowchart and both are used to be directly translated into the control code.This paper proposes a method in which the control program is constructed as a sequential function chart(SFC)by transforming the requirements via clearly defined intermediate formats.For the purpose of analysis,the resulting SFC can be translated algorithmically into timed automata.A rigorous verification can be used to determine whether all specifications are satisfied if a formal model of the plant is available which is then composed with the automata model of the logic controller(LC). 展开更多
关键词 logic controller design systematic approach informal requirements verification
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CONVEX CONTROLLER DESIGN APPLIED TO AC INDUCTION MOTOR TO SATISFY MULTIPLE SIMULTANEOUS SPECIFICATIONS 认领 引用
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作者 LEE Seung-Ju SUN Dong MILLS James K 《Chinese Journal of Mechanical Engineering》 EI CAS 2006年第4期475-479,共5页
The application of a closed-loop specification oriented feedback control design method, which addresses the design of controllers to satisfy multiple simultaneous conflicting closed-loop performance specifications is ... The application of a closed-loop specification oriented feedback control design method, which addresses the design of controllers to satisfy multiple simultaneous conflicting closed-loop performance specifications is presented. The proposed approach is well suited to the design of controllers which must meet a set of conflicting performance specifications. Gain tuning is central to the design process, however, the tuning process is greatly simplified over that presented by the problem of tuning a PID controller for example. The proposed control method is applied to an AC induction motor, with an inner-loop flux vector controller applied to design a position control system. Experimental results verify the effectiveness of this method. 展开更多
关键词 Convex controller design Multiple simultaneous specifications AC induction motor Nonlinear control
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Asymptotically Stable Controller Design via Inverse Optimal Control 认领 引用
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作者 Shuhuai Tan Kexi Yan +3 位作者 Jie Zhang Yongting Chen Qinglai Wei Fei-Yue Wang 《The International Journal of Intelligent Control and Systems》 2025年第2期182-188,共7页
The design of stabilizing controllers for general nonlinear systems remains a challenging task due to their inherent complexities and nonconvexities.In this paper,we consider the problem of designing an asymptotically... The design of stabilizing controllers for general nonlinear systems remains a challenging task due to their inherent complexities and nonconvexities.In this paper,we consider the problem of designing an asymptotically stable controller of a nonlinear dynamic system.We begin by framing the problem as an inverse optimal control problem,aiming to design a pair of cost functions that ensure asymptotic stability for the nonlinear model predictive control closed-loop system.By leveraging the relaxed dynamic programming inequality,a machine learning based algorithm is proposed to learn the cost functions.Finally,we demonstrate the effectiveness of the proposed method through illustrative examples. 展开更多
关键词 nonlinear systems relaxed dynamic program nonlinear dynamic systemwe asymptotically stable controller inverse optimal control problemaiming designing asymptotically stable controller design pair cost functions asymptotic stability
Method of Designing Missile Controller Based on Multi-Objective Opti mization 认领 引用
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作者 林波 孟秀云 刘藻珍 《Journal of Beijing Institute of Technology》 EI CAS 2006年第2期152-155,共4页
A method of designing robust controller based on genetic algorithm is presented in order to overcome the drawback of manual modification and trial in designing the control system of missile. Specification functions wh... A method of designing robust controller based on genetic algorithm is presented in order to overcome the drawback of manual modification and trial in designing the control system of missile. Specification functions which reflect the dynamic performance in time domain and robustness in frequency domain are presented, then dynamic/static performance, control cost and robust stability are incorporated into a multi-objective optimization problem. Genetic algorithm is used to solve the problem and achieve the optimal controller directly. Simulation results show that the controller provides a good stability and offers a good dynamic performance in a large flight envelope. The results also validate the effectiveness of the method. 展开更多
关键词 controller design multi-objective optimization genetic algorithm
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Adaptive controller design for uncertain singular systems with actuator failure 认领 引用 被引量：2
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作者 Di Lu Dongmei Yang 《Journal of Control and Decision》 EI 2022年第1期129-138,共10页
In this paper,the problem of model reference adaptive controller design with actuator failure is solved for a series of uncertain singular systems.The research on partial actuator failure is relatively mature and it i... In this paper,the problem of model reference adaptive controller design with actuator failure is solved for a series of uncertain singular systems.The research on partial actuator failure is relatively mature and it is necessary to solve the problem of how to guarantee the system performance when the actuator fails completely.For this reason,we treat the system with actuator failure as a switching system with two subsystems and then solve the stability analysis problem of the error switching system.The emphasis is to design the adaptive controller by some sufficient linear matrices inequalities(LMIs)conditions and obtain the global stability criterion of the error switching system through the resident time method.Finally,the proposed method is applied to HiMAT aircraft to illustrate the feasibility and effectiveness of this kind of problem. 展开更多
关键词 Singular systems actuator failure adaptive controller design state feedback tracking control
Controller Design-oriented Analysis of Grid-forming Converters for Stability Robustness Enhancement 认领 引用 被引量：2
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作者 Yicheng Liao Xiongfei Wang 《Chinese Journal of Electrical Engineering》 EI CSCD 2021年第4期37-48,共12页
Grid-forming converters can suffer from control interaction problems in grid connections that can result in small-signal instability.Their inner-loop voltage controller tends to interact with the outer-loop power cont... Grid-forming converters can suffer from control interaction problems in grid connections that can result in small-signal instability.Their inner-loop voltage controller tends to interact with the outer-loop power controller,rendering the controller design more difficult.To conduct a design-oriented analysis,a control-loop decomposition approach for grid-forming converters is proposed.Combined with impedance-based stability analysis,the control-loop decomposition approach can reveal how different control loops affect the converter-grid interaction.This results in a robust controller design enabling grid-forming converters to operate within a wider range of grid short-circuit ratios.Finally,simulation and experimental results,which validate the approach,are presented. 展开更多
关键词 Grid-forming converters control-loop interaction robust control design small-signal stability grid connection
Design method of multivariable PI controller for turboprop engine based on equivalent transfer function 认领 引用
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作者 Shancheng LI Yong WANG Haibo ZHANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2024年第9期237-260,共24页
Traditional centralized Proportional Integral(PI)controller design methods based on Equivalent Transfer Functions(ETFs)have poor decoupling effect in turboprop engines.In this paper,a centralized PI design method base... Traditional centralized Proportional Integral(PI)controller design methods based on Equivalent Transfer Functions(ETFs)have poor decoupling effect in turboprop engines.In this paper,a centralized PI design method based on dynamic imaginary matrix and equivalent transfer function is proposed.Firstly,a method for solving equivalent transfer functions based on the dynamic imaginary matrix is proposed,which adopts dynamic imaginary matrix to describe the dynamic characteristics of the system,and obtains the equivalent transfer function based on the dynamic imaginary matrix characteristics.Secondly,for the equivalent transfer function,a central-ized PI control gain is designed using the Taylor expansion method.Meanwhile,this paper further proves that the centralized PI design method proposed in this paper has integral stability.Consid-ering the impact of altitude and Mach number on turboprop engines,a linear feedforward control method based on the transfer function matrix is further proposed based on the centralized PI con-troller,and the stability of the entire comprehensive control method is proved.Finally,to ensure the safe and effective operation of the turboprop engine,a temperature and torque limiting protection controller is designed for the turboprop engine.Simulation results show that the centralized PI con-troller design method and linear feedforward control method proposed can effectively improve the control quality of turboprop engine control systems. 展开更多
关键词 Multivariable control sys-tems Equivalent transfer function Disturbance compensation control Control parameter design Turboprop engine control
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Compensation control and design methods for excavations in deep soft rocks 认领 引用
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作者 Qi Wang Xuepeng Wang +2 位作者 Bei Jiang Manchao He Lingfeng Sun 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2025年第6期3747-3761,共15页
During the excavation and support process in deep soft rocks,complex conditions such as high stress and strong disturbance can be encountered.The complex conditions can cause failure of the support system.Aiming at st... During the excavation and support process in deep soft rocks,complex conditions such as high stress and strong disturbance can be encountered.The complex conditions can cause failure of the support system.Aiming at stability control in deep soft rocks,we proposed the excavation compensation theory.A new high strength and high toughness material was developed.The breaking load and elongation of the new material are 1.59 and 1.78 times that of common bolt materials.To overcome the problem that the CABLE element in FLAC3D cannot simulate failure of support structures,the numerical model for the whole process of force-breaking-anchorage failure simulation(FBAS)for bolts(cables)was established.The numerical experiments on the excavation compensation control of deep soft rock were carried out.The excavation compensation control mechanism of high strength and high toughness material was clarified.Compared with the common support scheme,the highly prestressed support has a maximum increase of 90.24%in radial stress compensation rate and a maximum increase of 67.85%in deformation control rate.The results illustrate the rationality of the excavation compensation theory.The compensation design method of excavations in deep soft rocks was proposed and applied in a deep soft rock chamber.The monitoring indicated that the maximum surrounding rock deformation is 180 mm,reduced by 64%compared to the common support.The deformation of the chamber was controlled and the surrounding rock was stable. 展开更多
关键词 Deep soft rock Excavation compensation High strength and high toughness material FBAS numerical model Control design
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Systematic design method for PI controller with Virtual Resistor-based Active Damping of LCL filter 认领 引用 被引量：4
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作者 Marwa Ben Said-Romdhane Mohmed Wissem Naouar Ilhem Slama-Belkhodja 《Global Energy Interconnection》 2018年第3期319-329,共11页
The Virtual Resistor based Active Damping(VR-AD) is widely employed in converters connected to the grid via LCL filters in order to mitigate the inherent resonance of the filters. Nevertheless, in digitally controlled... The Virtual Resistor based Active Damping(VR-AD) is widely employed in converters connected to the grid via LCL filters in order to mitigate the inherent resonance of the filters. Nevertheless, in digitally controlled systems, the PWM and the calculating delays modify the system characteristics in terms of frequency and phase, thus destabilizing the system and degrading the VR-AD performances, mainly in low switching frequencies. Moreover, the stability of the system is greatly affected under weak grid operation characterized by large grid impedance variation. This paper solves these problems by proposing a systematic, robust and optimized design procedure of voltage oriented PI control(VOC) with VRAD. The considered design procedure ensures robust control(sufficient stability margins) and high quality of grid current(reduced steady-state error and minimized THD value) despite the negative impact of digital time delay, grid impedance variation and filter parameters change. Simulation and experimental results are presented to show robustness and efficiency of the suggested design procedure. 展开更多
关键词 Digital controllers LCL filter Time delay Grid-connected converters Virtual Resistor Real Resistor VOC Grid impedance variation Controllers design
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Global integration design method of acceleration and deceleration control schedule for variable cycle engine 认领 引用
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作者 Ying CHEN Sangwei LU +1 位作者 Wenxiang ZHOU Jinquan HUANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2025年第5期248-261,共14页
Variable Cycle Engine(VCE)serves as the core system in achieving future advanced fighters with cross-generational performance and mission versatility.However,the resultant complex configuration and strong coupling of ... Variable Cycle Engine(VCE)serves as the core system in achieving future advanced fighters with cross-generational performance and mission versatility.However,the resultant complex configuration and strong coupling of control parameters present significant challenges in designing acceleration and deceleration control schedules.To thoroughly explore the performance potential of engine,a global integration design method for acceleration and deceleration control schedule based on inner and outer loop optimization is proposed.The outer loop optimization module employs Integrated Surrogate-Assisted Co-Differential Evolutionary(ISACDE)algorithm to optimize the variable geometry adjustment laws based on B-spline curve,and the inner loop optimization module adopts the fixed-state method to design the open-loop fuel–air ratio control schedules,which are aimed at minimizing the acceleration and deceleration time under multiple constraints.Simulation results demonstrate that the proposed global integration design method not only furthest shortens the acceleration and deceleration time,but also effectively safeguards the engine from overlimit. 展开更多
关键词 Control schedule design Acceleration and deceleration Variablecycle engine Fixed-states method Co-differential evolutionary algorithm
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Thermal Control Design for Enhancing Tolerance of Large-Aperture Reflective Camera“Sun Transit”on Geostationary Earth Orbit 认领 引用
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作者 LIAN Xinhao XIA Chenhui GAO Chao 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2025年第4期452-463,共12页
The large-aperture reflective cameras on the geostationary orbit are susceptible to significant temperature fluctuations due to the“Sun transit”effect.To address the shortcomings of existing thermal control measures... The large-aperture reflective cameras on the geostationary orbit are susceptible to significant temperature fluctuations due to the“Sun transit”effect.To address the shortcomings of existing thermal control measures using camera sunshades to suppress the“Sun transit”and the issue of excessively large solar avoidance angles determined solely by geometric relationships,a thermal control design method is proposed that involves adding multi-layer thermal protection at the secondary mirror position of the camera.The goal is to optimize the avoidance angle and enhance the camera’s tolerance to“Sun transit”.A heat balance and motion relationship between the avoidance angle and duration is established.Then,the minimum solar avoidance angle after adopting the multi-layer thermal protection design is calculated.This angle is compared with the one determined by geometric relationships,leading to the conclusion that this method can effectively enhance the camera’s tolerance to“Sun transit”.A heat dissipation scheme is proposed that involves a coupled north-south heat spreader design with low-temperature compensation for the internal heat source.The calculation results of the two avoidance angles are applied to the calculation of the heat dissipation area and low-temperature compensation power,achieving a closed-loop heat dissipation scheme.Puls,the superiority of the multi-layer thermal protection design method is demonstrated from the perspectives of heat dissipation area and low-temperature compensation power requirements.A comparative analysis of simulation analysis,thermal balance tests,and in-orbit temperature data further validates the effectiveness of this method. 展开更多
关键词 geostationary earth orbit Sun transit,solar avoidance thermal control design thermal protection
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Design and Efficient Controller for Micro Turbine System 认领 引用
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作者 G. Saravanan I. Gnanambal 《Circuits and Systems》 2016年第8期1224-1232,共9页
In this modern era, power generation seems to be a very demanding factor. New models and methods have been proposed to derive from various natural and manmade resources. In such instances, this paper gives a detailed ... In this modern era, power generation seems to be a very demanding factor. New models and methods have been proposed to derive from various natural and manmade resources. In such instances, this paper gives a detailed report on the power generation from Micro Turbines. Micro turbine plays a very important role in electric power generation. Especially they are used in the combined cycle process power plants. The parameters of Rowen’s model 265-MW single shaftheavy duty gas turbines which are used in dynamic studies are estimated in this paper using the operational and performance data. These data are also used to briefly explain the extraction of parameters of the used model. Micro turbine parameters are approximated using simple thermodynamics assumptions. Micro turbine power generation seems to be an uprising and a promising source and an exact design with a perfect model is capable of producing the highest efficiency. Thus this paper is proposed on the aspects of social awareness to elaborate the control design of Micro Turbine Power Generation System. The parameters of micro turbine models are derived and the results of several simulated tests using Matlab/Simulink are presented. 展开更多
关键词 Dynamic Simulation Micro Turbine Control Design
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Integrated Fuzzy Robust Controller for Flight Control Design 认领 引用
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作者 ALI Mohamed. s. Elmelhi 《Computer Aided Drafting,Design and Manufacturing》 2005年第2期50-55,共6页
μ-synthesis is a practical design approach and has been applied successfully to achieve a nominal and robust performance objectives. However, this design method suffers from the complexity of its practical implementa... μ-synthesis is a practical design approach and has been applied successfully to achieve a nominal and robust performance objectives. However, this design method suffers from the complexity of its practical implementation and high computational demand due to its high order dynamics. To overcome this problem, the interaction between fuzzy logic control which is a part of intelligence control theory and p-synthesis controller is carried out. This is called integrated fuzzy robust controller in this paper. It is obtained by coupling fuzzy pd with p-synthesis controller through the outer loop. Using this design strategy, we can keep the system performance and robustness even a high order p-synthesis controller is reduced into second order model. In order to test the effectiveness of this design method, the linear simulation results for a launch vehicle＇s attitude control motion are presented at the end of this paper. 展开更多
关键词 fuzzy control μ-synthesis robust control design integrated fuzzy logic
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Design of Mechanical Automation Control System Based on Artificial Intelligence 认领 引用
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作者 Zhen Sun 《Journal of Electronic Research and Application》 2025年第3期270-277,共8页
Aiming at the problems of poor adaptability and insufficient fault prediction of traditional mechanical automation control systems in complex working conditions,a mechanical automation control system based on artifici... Aiming at the problems of poor adaptability and insufficient fault prediction of traditional mechanical automation control systems in complex working conditions,a mechanical automation control system based on artificial intelligence is designed.This design integrates expert control,fuzzy control,and neural network control technologies,and builds a hierarchical distributed architecture.Fault warning adopts threshold judgment and dynamic time warping pattern recognition technologies,and state monitoring realizes accurate analysis through multi-source data fusion and Kalman filtering algorithm.Practical applications show that this system can reduce the equipment failure rate by more than 30%.With the help of intelligent scheduling optimization,it can significantly improve production efficiency and reduce energy consumption,providing a reliable technical solution and practical path for the intelligent upgrade of the mechanical automation field. 展开更多
关键词 Artificial intelligence Mechanical automation Control system design Fault warning Intelligent monitoring
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Interaction analysis and enhanced design of grid-forming control with hybrid synchronization and virtual admittance loops 认领 引用 被引量：11
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作者 Hong Gong Xiongfei Wang 《iEnergy》 2023年第1期71-84,共14页
The hybrid power-and voltage-based synchronization control method has shown potential for enhancing the stability of grid-forming(GFM)inverters.However,its effectiveness may be compromised if other control loops are n... The hybrid power-and voltage-based synchronization control method has shown potential for enhancing the stability of grid-forming(GFM)inverters.However,its effectiveness may be compromised if other control loops are not properly designed.To address the control-loop interactions,this paper presents a design-oriented analysis method for multiloop-controlled GFM inverters.The method begins by identifying the dominant oscillation modes through modal analysis.The sensitivities of damping ratios to control parameters are then determined for the dominant modes,which allows for characterization of control-loop interactions.A co-design method of GFM control is next developed based on the sensitivity analysis.Lastly,simulations and experimental results are presented to confirm the effectiveness of the method. 展开更多
关键词 Grid-forming inverter hybrid synchronization controller virtual admittance damping ratio controller design
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Controllable design of Zn-Ni-P on g-C_3N_4 for efficient photocatalytic hydrogen production 认领 引用 被引量：15
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作者 Yanbing Li Zhiliang Jin +1 位作者 Lijun Zhang Kai Fan 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 北大核心 2019年第3期390-402,共13页
Synthesizing a stable and efficient photocatalyst has been the most important research goal up to now. Owing to the dominant performance of g-C3N4 (graphitized carbonitride), an ordered assemble of a composite photoca... Synthesizing a stable and efficient photocatalyst has been the most important research goal up to now. Owing to the dominant performance of g-C3N4 (graphitized carbonitride), an ordered assemble of a composite photocatalyst, Zn-Ni-P@g-C3N4, was successfully designed and controllably prepared for highly efficient photocatalytic H2 evolution. The electron transport routes were successfully adjusted and the H2 evolution was greatly improved. The maximum amount of H2 evolved reached about 531.2 μmol for 5 h over Zn-Ni-P@g-C3N4 photocatalyst with a molar ratio of Zn to Ni of 1:3 under illumination of 5 W LED white light (wavelength 420 nm). The H2 evolution rate was 54.7 times higher than that over pure g-C3N4. Moreover, no obvious reduction in the photocatalytic activity was observed even after 4 cycles of H2 production for 5 h. This synergistically increased effect was confirmed through the results of characterizations such as XRD, TEM, SEM, XPS, N2 adsorption, UV-vis DRS, transient photocurrent, FT-IR, transient fluorescence, and Mott-Schottky studies. These studies showed that the Zn-Ni-P nanoparticles modified on g-C3N4 provide more active sites and improve the efficiency of photogenerated charge separation. In addition, the possible mechanism of photocatalytic H2 production is proposed. 展开更多
关键词 Zn-Ni-P g-C3N4 H2 production Controllable design Photocatalyst
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A review on DFACS(I):System design and dynamics modeling 认领 引用 被引量：6
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作者 Bohan JIAO Qifan LIU +12 位作者 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 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2024年第5期92-119,共28页
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... 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. 展开更多
关键词 Drag-Free DFACS System Design Dynamics Modeling Control design
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