Super twisting controller-based unified FDI and FTC scheme for air path of diesel engine using the certainty equivalence principle

Murtaza, Ghulam; Bhatti, Aamer Iqbal; Butt, Yasir Awais

doi:10.1177/0954407017732860

Cited by 8 publications

(3 citation statements)

References 27 publications

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“…As the complexity of the system increases, the design process of the controller becomes more difficult. In [ 39 ], a certainty equivalence-based super-twisting algorithm (CESTA) is implemented on a diesel engine for the diagnosis of match uncertainties and later it is counteracted. In [ 40 ], the certainty equivalence-based integral sliding mode control (CEISMC) technique is being utilized to diagnose and mitigate the actuator fault for the diesel engine.…”

Section: Introductionmentioning

confidence: 99%

Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS

et al. 2023

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This work focuses on maximum power extraction via certainty equivalence-based robust sliding mode control protocols for an uncertain Permanent Magnet Synchronous Generator-based Wind Energy Conversion System (PMSG-WECS). The considered system is subjected to both structured and unstructured disturbances, which may occur through the input channel. Initially, the PMSG-WECS system is transformed into a Bronwsky form, i.e., controllable canonical form, which is composed of both internal and visible dynamics. The internal dynamics are proved stable, i.e., the system is in the minimum phase. However, the control of visible dynamics, to track the desired trajectory, is the main concern. To carry out this task, the certainty equivalence-based control strategies, i.e., conventional sliding mode control, terminal sliding mode control and integral sliding mode control are designed. Consequently, a chattering phenomenon is suppressed by the employment of equivalent estimated disturbances, which also enhance the robustness of the proposed control strategies. Eventually, a comprehensive stability analysis of the proposed control techniques is presented. All the theoretical claims are verified via computer simulations, which are performed in MATLAB/Simulink.

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Section: Introductionmentioning

confidence: 99%

Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS

et al. 2023

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“…19 For a single-tank system with system faults and process disturbances, a fuzzy logic-based passive fault-tolerant control method was proposed in Patel and Shah. 20 In Murtaza et al, 21 a super-twisting control-based unified FDI and FTC system for the air path of diesel engines is reported. Kalman Filters (KFs) were also used in the FDI architecture of gas turbines for faulty sensor estimation 22,23 consisting of both hardware and analytical redundancies.…”

Section: Introductionmentioning

confidence: 99%

Design of hybrid fault-tolerant control system for air-fuel ratio control of internal combustion engines using artificial neural network and sliding mode control against sensor faults

Shahbaz

Amin

2023

Advances in Mechanical Engineering

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This paper proposes a novel hybrid fault-tolerant control system (HFTCS) with dedicated non-linear controllers: artificial neural network (ANN) and sliding mode control (SMC) for active and passive parts, respectively. The proposed system can provide both desirable properties of stability to unexpected fast disturbances and post-fault optimal performance. In the active fault tolerant control system (AFTCS) part, the fault detection and isolation (FDI) unit is designed through the use of ANN for the estimation of faulty sensor values in the observer model. In the passive fault-tolerant system (PFTCS) part, the air-fuel ratio (AFR) controller is designed using a robust SMC that allows systems to manage faults in predefined limits without estimation. In the proposed system, SMC will form the passive part to react instantly to faults while ANN will optimize post-fault performance with active compensation. Moreover, Lyapunov stability analysis was also performed to make sure that the system remains stable in both normal and faulty conditions. The simulation results in the Matlab/Simulink environment show that the designed controller is robust to faults in normal and noisy measurements of the sensors. A comparison with the existing works also demonstrates the superior performance of the proposed hybrid algorithm.

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“…In Patel and Shah, 33 PFTCS has been reported using fuzzy logic and proportional–integral (PI) controller for a single tank level system under system faults and process disturbances. In Murtaza et al, 34 super twisting control-based unified FDI and FTC scheme is reported for air path of diesel engines. In Pourbabaee et al, 35 HFTCS is implemented using multiple KFs in the FDI design for gas turbine engines.…”

Section: Introductionmentioning

confidence: 99%

Hybrid fault tolerant control for air–fuel ratio control of internal combustion gasoline engine using Kalman filters with advanced redundancy

Amin

Mahmood-ul-Hasan

2019

Measurement and Control

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In this paper, a hybrid fault tolerant control system is proposed for air–fuel ratio control of internal combustion gasoline engines based on Kalman filters and triple modular redundancy. Hybrid fault tolerant control system possesses properties of both active fault tolerant control system and passive fault tolerant control system. As part of active fault tolerant control system, fault detection and isolation unit is designed using Kalman filters to provide estimated values of the sensors to the engine controller in case of faults in the sensors. As part of passive fault tolerant control system, a dedicated proportional–integral feedback controller is incorporated to maintain air–fuel ratio by adjusting the throttle actuator in the fuel supply line in faulty and noisy conditions for robustness to faults and sensors’ noise. Redundancy is proposed in the sensors and actuators as a simultaneous failure of more than one sensor, and failure of the single actuator will cause the engine shutdown. Advanced redundancy protocol triple modular redundancy is proposed for the sensors and dual redundancy is proposed for actuators. Simulation results in the MATLAB Simulink environment show that the proposed system remains stable during faults in the sensors and actuators. It also maintains air–fuel ratio without any degradation in the faulty conditions and is robust to noise. Finally, the probabilistic reliability analysis of the proposed model is carried out. The study shows that the proposed hybrid fault tolerant control system with redundant components presents a novel and highly reliable solution for the air–fuel ratio control in internal combustion engines to prevent engine shutdown and production loss for greater profits.

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Super twisting controller-based unified FDI and FTC scheme for air path of diesel engine using the certainty equivalence principle

Cited by 8 publications

References 27 publications

Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS

Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS

Design of hybrid fault-tolerant control system for air-fuel ratio control of internal combustion engines using artificial neural network and sliding mode control against sensor faults

Hybrid fault tolerant control for air–fuel ratio control of internal combustion gasoline engine using Kalman filters with advanced redundancy

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