Actuator fault-tolerant load frequency control for interconnected power systems with hybrid energy storage system

Zhou, Xichao; Wang, Yachao; Zhang, Weimin; Yang, Weilin; Zhang, Yiwei; Xu, Dazhuan

doi:10.1016/j.egyr.2020.11.028

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…[ 28 ] proposed an estimation method for robust state and fault based on neural networks for satellite attitude control systems with actuator and sensor faults. [ 29 , 30 ] have respectively studied the fault-tolerant control problem in large-scale interconnected power systems and propulsion systems for unmanned ships. [ 31 , 32 ] conducted research on multiple-input multiple-output (MIMO) antenna system.…”

Section: Introductionmentioning

confidence: 99%

An estimation method for sensor faults based on observer in interconnected systems

Sun,

2024

PLoS ONE

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In this research, a class of nonlinear interconnected systems with sensor faults were investigated and an estimation method was proposed for system sensor faults based on the theory of system state reconstruction. Considering sensor fault vectors in nonlinear interconnected systems, this method constructed a generalized nonlinear interconnected system, whose state was designed by augmenting the original system state and fault vectors, which provides a foundation for fault estimation of nonlinear interconnected systems. An augmented observer was developed by equivalent transformation of generalized interconnected system, so as to realize robust estimations of sensor faults in interconnected systems. This estimation method took into account the effect of external disturbance of the system on fault estimation and estimated the convergence speed of error system; the developed method also considered the convenience of solving the gain matrix of the augmented observer, which was beneficial to the realization of sensor fault estimation in interconnected system. The sensor estimation method proposed in the paper has the advantages of robustness in fault estimation,rapidity in error convergence, and convenience in solving the gain matrix. Finally, the state and sensor fault estimation errors of two interconnected systems can both approach 0 within 10 seconds, thus achieving the purpose of fault estimation. Two simulation experiments verified the effectiveness of the proposed fault estimation method and provided a reference for the fault estimation method of nonlinear interconnected systems with disturbance.

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Section: Introductionmentioning

confidence: 99%

An estimation method for sensor faults based on observer in interconnected systems

Sun,

2024

PLoS ONE

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“…With the rapid development of sensing and communication technologies, modern engineering systems are increasingly networked and distributed [ 1 ]. Further, the large-scale distributed systems such as power grid and vehicle platooning are generally interconnected, physically or informationally [ 2 , 3 , 4 , 5 ]. These kinds of systems are thus referred to as distributed interconnected systems, which are composed of several subsystems in different locations through coupling mechanisms.…”

Section: Introductionmentioning

confidence: 99%

A Distributed Fault Diagnosis and Cooperative Fault-Tolerant Control Design Framework for Distributed Interconnected Systems

Zhang

Wang

et al. 2022

Sensors

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This paper investigates a design framework for a class of distributed interconnected systems, where a fault diagnosis scheme and a cooperative fault-tolerant control scheme are included. First of all, fault detection observers are designed for the interconnected subsystems, and the detection results will be spread to all subsystems in the form of a broadcast. Then, to locate the faulty subsystem accurately, fault isolation observers are further designed for the alarming subsystems in turn with the aid of an adaptive fault estimation technique. Based on this, the fault estimation information is used to compensate for the residuals, and then isolation decision logic is conducted. Moreover, the cooperative fault-tolerant control unit, where state feedback and cooperative compensation are both utilized, is introduced to ensure the stability of the whole system. Finally, the simulation of intelligent unmanned vehicle platooning is adopted to demonstrate the applicability and effectiveness of the proposed design framework.

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“…So the structure of decentralised control is usually more effective than centralised control from the implementation point of view. In the last few decades, decentralised control has received much attention and many results have been achieved (Misgeld et al, 2015;Sombría et al, 2012;Zhang, 2020;Zhou et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Decentralised state feedback stabilisation for nonlinear interconnected systems using sliding mode control*

Nan

Yan

Mao

et al. 2021

International Journal of Systems Science

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In this paper, the stabilisation problem is considered for a class of nonlinear interconnected systems with matched uncertainties and mismatched unknown interconnections. A composite sliding surface is designed firstly, and a set of conditions is developed to guarantee that the corresponding sliding motion is uniformly asymptotically stable. Then, decentralised state feedback sliding mode control is proposed to drive the interconnected systems to the designed sliding surface in finite time, and a sliding motion is maintained thereafter. The bounds on the uncertainties and interconnections have more general nonlinear forms, which are employed in the control design to reject the effects of uncertainties and unknown interconnections to enhance the robustness. It is not required either the isolated nominal subsystems linearisable or the interconnections linearisable. Finally, a numerical simulation example is presented to demonstrate the effectiveness of the proposed control strategy.

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Actuator fault-tolerant load frequency control for interconnected power systems with hybrid energy storage system

Cited by 8 publications

References 9 publications

An estimation method for sensor faults based on observer in interconnected systems

An estimation method for sensor faults based on observer in interconnected systems

A Distributed Fault Diagnosis and Cooperative Fault-Tolerant Control Design Framework for Distributed Interconnected Systems

Decentralised state feedback stabilisation for nonlinear interconnected systems using sliding mode control*

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