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Dissipativity-based Robust Reduced-order Fault Estimation Observer Design of Multi-agent Systems
Jingping Xia,Bin Jiang,Ke Zhang 제어·로봇·시스템학회 2017 International Journal of Control, Automation, and Vol.15 No.6
In this paper, a distributed reduced-order fault estimation observer is studied for both continuous- and discrete-time multi-agent systems with directed communication topologies. Initially, a distributed reduced-order observer is proposed to estimate the occurred faults, which can reduce the number of the fault estimation observer’s order of multi-agent systems. What is more, based on strict dissipativity and pole placement constrains, a multiconstrained design is given to calculate gain matrices of distributed reduced-order observer. Finally, simulation results are presented to demonstrate the effectiveness of the proposed distributed reduced-order fault estimation technique.
Robust Asymptotic Estimation of Sensor Faults for Continuous-time Interconnected Systems
Jingping Xia,Bin Jiang,Ke Zhang 제어·로봇·시스템학회 2019 International Journal of Control, Automation, and Vol.17 No.12
This paper concerns the problem of robust asymptotic estimation of sensor faults for continuous-time interconnected systems. Firstly, an augmented singular interconnected system is constructed, which is equivalent to the original interconnected system. Then for the ingular system, the distributed fault estimation observer based on the correlation between subsystems is proposed to achieve a robust asymptotic estimation of sensor faults. Furthermore, the online fault estimator is designed to estimate unknown sensor faults in real time. Finally, the simulation results verify the feasibility and effectiveness of the proposed design techniques.
Jingping Xia,Bin Jiang,Ke Zhang 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.3
In this paper, the distributed fault estimation problem of discrete-time nonlinear interconnected systems is studied. Unlike in continuous-time interconnected systems, the coupling terms between interconnected subsystems make the design of fault estimation observer for discrete-time interconnected systems more difficult. An augmented interconnected system is constructed, and the global error dynamical equation of interconnected systems is formed from a global perspective, which is convenient for handling the coupling terms. Furthermore, the unknown input observer-based distributed fault estimation design is proposed to completely decouple external disturbances, and a multi-constrained design is given to calculate the matrix gains of the fault estimation observer. The sufficient conditions of this design are presented in terms of linear matrix inequalities. Finally, simulation results of the tripled-inverted pendulum model are given to verify the effectiveness of the present design techniques.
THE DETECTION OF INSTANTANEOUS DISTORTED CURRENT WITH THREE-DIMENSIONAL SPACE VECTOR
Tong Mei,Tong Jie,Jiang Jingping 전력전자학회 1998 ICPE(ISPE)논문집 Vol.- No.-
Active power filter is a kind of device used for compensating instantaneous reactive and harmonic current in three-phase circuits An essential technology that determines the behavior of an active power filter is the method of detecting the distorted current Using three-dimensional space vectors, this paper describes a simple method for detecting the distorted current without any coordinate transformation The effectiveness of the novel method is verified by the theoretical analysis and simulation.