An actuator fault reconstruction scheme for linear systems

Lee, Kee-Sang; Park, Tae-Geon

doi:10.1016/j.jprocont.2016.05.009

Cited by 8 publications

(7 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Problem Description. Considering the following wind turbine pitch system with four conditions, pitch actuator fault, pitch sensor fault, system uncertainty, and external disturbance [14][15][16][17], the corresponding dynamic equations are as follows:…”

Section: Descriptor Sliding Mode Observer Designmentioning

confidence: 99%

Active Fault-Tolerant Control for Wind Turbine with Simultaneous Actuator and Sensor Faults

et al. 2017

View full text Add to dashboard Cite

The purpose of this paper is to show a novel fault-tolerant tracking control (FTC) strategy with robust fault estimation and compensating for simultaneous actuator sensor faults. Based on the framework of fault-tolerant control, developing an FTC design method for wind turbines is a challenge and, thus, they can tolerate simultaneous pitch actuator and pitch sensor faults having bounded first time derivatives. The paper’s key contribution is proposing a descriptor sliding mode method, in which for establishing a novel augmented descriptor system, with which we can estimate the state of system and reconstruct fault by designing descriptor sliding mode observer, the paper introduces an auxiliary descriptor state vector composed by a system state vector, actuator fault vector, and sensor fault vector. By the optimized method of LMI, the conditions for stability that estimated error dynamics are set up to promote the determination of the parameters designed. With this estimation, and designing a fault-tolerant controller, the system’s stability can be maintained. The effectiveness of the design strategy is verified by implementing the controller in the National Renewable Energy Laboratory’s 5-MW nonlinear, high-fidelity wind turbine model (FAST) and simulating it in MATLAB/Simulink.

show abstract

Section: Descriptor Sliding Mode Observer Designmentioning

confidence: 99%

Active Fault-Tolerant Control for Wind Turbine with Simultaneous Actuator and Sensor Faults

et al. 2017

View full text Add to dashboard Cite

show abstract

“…If the fault cannot be corrected effectively, the control performance of the system will deteriorate. Fault-tolerant control (FTC) research has come into being under this background [5][6][7][8][9][10][11]. These results are roughly divided into two types: passive fault-tolerant control (PFTC) and active fault-tolerant control (AFTC).…”

Section: Introductionmentioning

confidence: 99%

Particle Swarm Optimization-Based H∞ Tracking Fault Tolerant Control for Batch Processes

Wang

2021

IEEE Access

View full text Add to dashboard Cite

This paper focuses on particle swarm optimization algorithm (PSOA)-based H∞ tracking fault-tolerant control for batch processes to resist the influence of actuator faults and unknown disturbances. First, according to a given actual process model, by introducing output tracking error, state difference and new states including output tracking error, an extended equivalent model is constructed. Then, a linearquadratic performance function is introduced. By using the PSOA to adjust those parameters in the function , a new state space H ∞ tracking fault-tolerant control law is proposed under optimal control theory. Actuator faults are regarded as uncertainties here. The Lyapunov stability theory is used to solve the allowable disturbances in a certain range. The greatest merit of this design is that it has better tracking performance and stronger anti-fault and interference ability. Finally, the injection molding process and nonlinear batch reactor are taken as examples to compare with the genetic algorithm method (GA) and the traditional control method (TC), which shows that the method proposed is more practical and effective.INDEX TERMS Batch processes, new extended state space model, particle swarm optimization algorithm, linear-quadratic H∞ tracking fault-tolerant control, actuator fault.

show abstract

“…With the progress of control theory and information technology, analytical redundancy fault tolerant technology has made some breakthroughs in both linear and nonlinear systems [3][4][5][6]. Moreno [7] proposed a design method of full-order and reduced-order unknown input observer, which plays an important role in the design of fault detection and isolation filter, nonlinear robust observer and decentralized controller.…”

Section: Introductionmentioning

confidence: 99%

Active Fault Tolerant Nonsingular Terminal Sliding Mode Control for Electromechanical System Based on Support Vector Machine

Hu¹,

Yang²,

Yao³

2021

Preprint

View full text Add to dashboard Cite

At present, electromechanical actuator is very popular in the industrial field because of environmental protection, energy saving and high efficiency. At the same time, it also puts forward higher requirements for its reliability. In this paper, a fault tolerant nonsingular terminal sliding mode control method for electromechanical system based on support vector machine (SVM) is proposed. SVM is designed to estimate the possible faults in the system by off-line learning from large sample data with gradient descent method. The estimation is used to compensate the possible fault with feedforward cancellation technique in the proposed controller. An observer is designed to estimate the system states to make fault detection and reconstruct the controller when something is wrong in electromechanical system. A nonsingular terminal sliding mode surface is designed, and Lyapunov theorem is used to derive a parameter adaptation law for handling the parametric uncertainty and a nonsingular terminal sliding mode control law. It is guaranteed the proposed controller can achieve bounded stability. Extensive comparative simulation and experimental results illustrate the effectiveness and advancement of the proposed controller compared with several other main-stream controllers.

show abstract

An actuator fault reconstruction scheme for linear systems

Cited by 8 publications

References 51 publications

Active Fault-Tolerant Control for Wind Turbine with Simultaneous Actuator and Sensor Faults

Active Fault-Tolerant Control for Wind Turbine with Simultaneous Actuator and Sensor Faults

Particle Swarm Optimization-Based H∞ Tracking Fault Tolerant Control for Batch Processes

Active Fault Tolerant Nonsingular Terminal Sliding Mode Control for Electromechanical System Based on Support Vector Machine

Contact Info

Product

Resources

About