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ADAPTIVE RECONFIGURATION CONTROL FOR FIGHTERS BASED ON WEIGHTED MULTIPLE-MODEL-STRUCTURE
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作者 肖前贵 张敏 胡寿松 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2010年第3期219-225,共7页
Aimed at the complex flight control system of a fighter,a kind of robust adaptive control methods using multiple models is presented to make the control system track the given signal under different working conditions... Aimed at the complex flight control system of a fighter,a kind of robust adaptive control methods using multiple models is presented to make the control system track the given signal under different working conditions and to reconfigure the control law for some structural failures. Firstly,the multiple-model control structure is formed by several linear models and one fuzzy model. In the fuzzy logic way,weights of the multiple-model adaptive controller are obtained. Then,a dynamic structure adaptive neural network is introduced to stabilize the whole system and eliminate the influence caused by the frequent switching. Simulation results show that the control method is effective by demonstrating the normal flight process and the control simulation with failures. 展开更多
关键词 robust control neural networks reconfiguration control
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Multimodel-based flight control system reconfiguration control in the presence of input constraints 被引量:2
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作者 Yuying GUO Bin JIANG Yufei XU 《控制理论与应用(英文版)》 EI 2010年第4期418-424,共7页
In this paper,an active fault accommodate strategy is proposed for the plant in the presence of actuator fault and input constraints,which is a combination of a direct adaptive control algorithm with multiple model sw... In this paper,an active fault accommodate strategy is proposed for the plant in the presence of actuator fault and input constraints,which is a combination of a direct adaptive control algorithm with multiple model switching.The μ-modification is introduced in the model reference architecture to construct the adaptive controller.The proof of stability is based on the candidate Lyapunov function,while appropriate switching of multiple models guarantees asymptotic tracking of the system states and the boundedness of all signals.Simulation results illustrate the efficiency of the proposed method. 展开更多
关键词 Actuator fault Adaptive control reconfiguration Multiple model Input constraint RBF neural network
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Autonomous Control Reconfiguration of Aerospace Vehicle Based on Control Effectiveness Estimation 被引量:2
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作者 池沛 陈宗基 +1 位作者 周锐 魏晨 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2007年第5期443-451,共9页
Future aerospace vehicles (ASV) are designed to fly in both inner and extra atmospheric fields, which requires autonomous adaptability to the uncertainties emanated from abrupt faults and continuously time-varying e... Future aerospace vehicles (ASV) are designed to fly in both inner and extra atmospheric fields, which requires autonomous adaptability to the uncertainties emanated from abrupt faults and continuously time-varying environments. An autonomous control reconfiguration scheme is presented for ASV to deal with the uncertainties on the base of control effectiveness estimation. The on-line estimation methods for the time-varying control effectiveness of linear control system are investigated. Some sufficient conditions for the estimable system are given for different cases. There are proposed corresponding on-line estimation algorithms which are proved to be convergent and robust to noise using the least-square-based methods. On the ground of fuzzy logic and linear programming, the control allocation algorithms, which are able to implement the autonomous control reconfiguration through the redundant actuators, are put forward. Finally, an integrated system is developed to verify the scheme and algorithms by way of numerical simulation and analysis. 展开更多
关键词 aerospace vehicle autonomous control reconfiguration control effectiveness control allocation linear programming
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Survey on nonlinear reconfigurable flight control 被引量:2
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作者 Xunhong Lv Bin Jiang +1 位作者 Ruiyun Qi Jing Zhao 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2013年第6期971-983,共13页
An overview on nonlinear reconfigurable flight control approaches that have been demonstrated in flight-test or highfidelity simulation is presented. Various approaches for reconfigurable flight control systems are co... An overview on nonlinear reconfigurable flight control approaches that have been demonstrated in flight-test or highfidelity simulation is presented. Various approaches for reconfigurable flight control systems are considered, including nonlinear dynamic inversion, parameter identification and neural network technologies, backstepping and model predictive control approaches. The recent research work, flight tests, and potential strength and weakness of each approach are discussed objectively in order to give readers and researchers some reference. Finally, possible future directions and open problems in this area are addressed. 展开更多
关键词 reconfigurable flight control (RFC) nonlinear dynamic inversion (NDI) BACKSTEPPING neural network (NN) model predictive control (MPC) parameter identification (PID) adaptive control flight control.
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Autonomous Control Technologies of the New Generation Launch Vehicle 被引量:3
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作者 HU Haifeng PAN Hao +1 位作者 HE Yong WANG Cong 《Aerospace China》 2021年第2期25-34,共10页
This paper introduces the autonomous control technologies for a new generation launch vehicle for guidance and attitude control.Based on the iterative guidance mode(IGM)of Long March launch vehicles,the autonomous com... This paper introduces the autonomous control technologies for a new generation launch vehicle for guidance and attitude control.Based on the iterative guidance mode(IGM)of Long March launch vehicles,the autonomous compensation IGM(ACIGM)for the terminal attitude deviation during the coasting phase is proposed.Considering the characteristics of large static instability and weak bearing capacity,the attitude control technology based on active disturbance rejection control(ADRC)and a control method based on an accelerometer are proposed.Targeting at non-fatal failures that may occur during flights,autonomous guidance reconstruction technology,nozzle fault diagnosis and reconstruction technology in the coasting phase are studied.Some of the autonomous control technologies proposed in this paper have achieved good control results as seen through flight verification. 展开更多
关键词 autonomous guidance ADRC fault diagnosis control reconfiguration
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RECONFIGURABLE FLIGHT CONTROL SYSTEMS DESIGN
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作者 葛彤 邓建华 《Chinese Journal of Aeronautics》 SCIE EI CSCD 1998年第2期13-19,共7页
RECONFIGURABLEFLIGHTCONTROLSYSTEMSDESIGNGETong(葛彤)(ShanghaiJiaoTongUniversity,Shanghai,200030,China)DENGJian... RECONFIGURABLEFLIGHTCONTROLSYSTEMSDESIGNGETong(葛彤)(ShanghaiJiaoTongUniversity,Shanghai,200030,China)DENGJianhua(邓建华)(Northwes... 展开更多
关键词 flight control reconfigurable flight control OPTIMIZATION H 2 optimization H constrain model following system
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Reconfigurability evaluation method for input-constrained control systems
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作者 TU Yuanyuan WANG Dayi LI Wenbo 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2021年第5期1023-1030,共8页
This paper proposes a quantitative reconfigurability evaluation method for control systems with actuator saturation and additive faults from the perspective of system stability.Placing the saturated feedback law in th... This paper proposes a quantitative reconfigurability evaluation method for control systems with actuator saturation and additive faults from the perspective of system stability.Placing the saturated feedback law in the convex hull of a group of auxiliary linear controls,the sufficient reconfigurability conditions for the system under additive faults are derived using invariant sets.These conditions are then expressed as linear matrix inequalities(LMIs)and applied to quantify the degree of reconfigurability for the fault system.The largest fault magnitude for which the system can be stabilized,the largest initial state domain from which all the trajectories are convergent,and the minimum final state domain to which the trajectories will converge are investigated.The effectiveness of the proposed method is illustrated through an application example. 展开更多
关键词 control reconfigurability additive fault actuator saturation invariant set fault-tolerant control
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Reconfigurable Flight Control Design for Combat Flying Wing with Multiple Control Surfaces 被引量:5
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作者 WANG Lei WANG Lixin 《Chinese Journal of Aeronautics》 SCIE EI CSCD 2012年第4期493-499,共7页
With control using redundant multiple control surface arrangement and large-deflection drag rudders,a combat flying wing has a higher probability for control surface failures.Therefore,its flight control system must b... With control using redundant multiple control surface arrangement and large-deflection drag rudders,a combat flying wing has a higher probability for control surface failures.Therefore,its flight control system must be able to reconfigure after such failures.Considering three types of typical control surface failures(lock-in-place(LIP),loss-of-effectiveness(LOE) and float),flight control reconfiguration characteristic and capability of such aircraft types are analyzed.Because of the control surface redundancy,the aircraft using the dynamic inversion flight control law already has a control allocation block.In this paper,its flight control configuration during the above failures is achieved by modifying this block.It is shown that such a reconfigurable flight control design is valid,through numerical simulations of flight attitude control task.Results indicate that,in the circumstances of control surface failures with limited degree and the degradation of the flying quality level,a combat flying wing adopting this flight control reconfiguration approach based on control allocation could guarantee its flight safety and perform some flight combat missions. 展开更多
关键词 flight control reconfiguration control allocation control surface failure flying wing multiple control surfaces drag rudder
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Reconfigurable control as actuator fault-tolerant control design for power oscillation damping 被引量:2
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作者 Digvijay V.Nair MSR Murty 《Protection and Control of Modern Power Systems》 2020年第1期70-81,共12页
This paper presents design of an self contained actuators unit in wide area damping control of power system in stabilizing system response for both nominal system condition and during actuator faults.First it is prese... This paper presents design of an self contained actuators unit in wide area damping control of power system in stabilizing system response for both nominal system condition and during actuator faults.First it is presented that use of multiple actuators in wide area control aid in improving damping in power system.A wide area damping controller feeding multiple actuators to satisfy multiple objectives in wide area damping control of power system is designed.Minimization of infinity norm of closed loop transfer function of power system with wide area controller in feedback path&closed loop poles placement techniques are used in controller synthesis.Second a reconfigurable control on the lines of fault hiding principle is added to the controller design to maintain system damping to pre-fault level in case of actuator faults.A reconfiguration component(RC)is activated on occurrence of actuator fault thereby reconfiguring system dynamics and redistributing wide area control signal among remaining active actuators.RC together with remaining active actuators and under same wide area damping controller maintains system damping to pre-fault level thereby preserving system dynamic response.In the reconfigurable control design presented here no new actuators outside the unit of actuators designed for wide area damping control is required.This makes for an self contained actuators unit in wide area damping control of power system both for nominal system condition and for system affected by actuator faults.A two area power system model is considered here for demonstrating effectiveness of designed robust damping controller with multiple outputs feeding multiple actuators in wide area control and illustrating the idea of self contained actuators unit for maintaining system damping in case of actuator faults. 展开更多
关键词 Wide area control Robust damping controller Actuator fault Reconfigurable control reconfiguration component Self contained actuators unit Power oscillations
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