Publications by Arunagirinathan S
Results in Control and Optimization, 2021
This paper discusses the asymptotic stability of nonlinearly perturbed dynamical systems. A suita... more This paper discusses the asymptotic stability of nonlinearly perturbed dynamical systems. A suitable delay-dependent Lyapunov-Krasovskii functional (LKF) including triple integral terms has been formulated in the way that the proposed time-varying dynamical model is asymptotically stable. Using the method of integral inequality, new sufficient stability conditions have been accomplished by way of linear matrix inequalities (LMIs). Furthermore, the novel stability conditions are utilized with many standard practical control system such as power system (PS) with one-area load frequency control (LFC) and two-area LFC, DC motor system and heat exchanger model. Also, the maximum allowable delay bounds (MADBs) are acquired, and it is compared through the time-domain simulations.
Nonfragile Sampled-Data Control for Uncertain Networked Control Systems With Additive Time-Varying Delays
IEEE Transactions on Cybernetics
This paper investigates the stabilization problem of uncertain networked control systems with add... more This paper investigates the stabilization problem of uncertain networked control systems with additive time-varying delays by using nonfragile sampled-data control. Suitable Lyapunov-Krasovskii functional (LKF) is constructed which includes more information about the additive time-varying delays. The main aim of this paper is to design a nonfragile sampled-data control scheme which guarantees asymptotic stability of the considered system. Besides that, the Jensen's and improved integral inequalities are used for estimating the single and double integral terms in the derivative of LKFs and the sufficient conditions are expressed in terms of linear matrix inequalities. Finally, the effectiveness of proposed theoretical results are validated and compared with existing literature by numerical examples and their simulation results.
New asymptotic stability criteria for time-delayed dynamical systems with applications in control models
Results in Control and Optimization, 2021
This paper discusses the asymptotic stability of nonlinearly perturbed dynamical systems. A suita... more This paper discusses the asymptotic stability of nonlinearly perturbed dynamical systems. A suitable delay-dependent Lyapunov–Krasovskii functional (LKF) including triple integral terms has been formulated in the way that the proposed time-varying dynamical model is asymptotically stable. Using the method of integral inequality, new sufficient stability conditions have been accomplished by way of linear matrix inequalities (LMIs). Furthermore, the novel stability conditions are utilized with many standard practical control system such as power system (PS) with one-area load frequency control (LFC) and two-area LFC, DC motor system and heat exchanger model. Also, the maximum allowable delay bounds (MADBs) are acquired, and it is compared through the time-domain simulations.
A novel observer-based approach to delay-dependent LFC of power systems with actuator faults and uncertain communications conditions
International Journal of Electrical Power & Energy Systems, 2021
In this paper, a novel observer-based approach is proposed for the delay-distribution-dependent (... more In this paper, a novel observer-based approach is proposed for the delay-distribution-dependent (DDD) load frequency control (LFC) of multi-area power systems with actuator faults and probabilistic communication conditions. LFC is designed considering missing data which obey the Bernoulli distribution and actuator faults. After that, an observer gain matrix is constructed for realizing Lyapunov stability, where delay-dependent stability criteria are derived under the consideration of different factors such as packet dropout during data transmission and faults in control. The stability conditions are derived in terms of linear matrix inequalities to achieve less conservative results in the communication delay and H∞ performance. Finally, the efficiency of the proposed observer-based DDD LFC is demonstrated and compared through time-domain simulations.
Improved results on asymptotic stability criteria for additive time-varying delay system and its applications
2019 Fifth Indian Control Conference (ICC), 2019
This paper is interested with the asymptotic stability for time-varying delay system. Using the h... more This paper is interested with the asymptotic stability for time-varying delay system. Using the higher order reciprocally convex technique, we derived a new delay-dependent sufficient conditions for the stability analysis of considered system in terms of Linear Matrix Inequalities (LMIs) by using Lyapunov-Krasvoskii Functional (LKF) method. Finally, two numerical examples are solved to express the effectiveness and less conservatism of the derived conditions.
Robust reliable H∞ control design for networked control systems with nonlinear actuator faults and randomly missing measurements
International Journal of Robust and Nonlinear Control, 2019
In this paper, the robust reliable H∞ controller is designed for the problem of nonlinear actuato... more In this paper, the robust reliable H∞ controller is designed for the problem of nonlinear actuator fault case in the uncertain networked control systems with randomly occurring missing data. More precisely, the occurrence of missing measurements is modeled by a stochastic variable in terms of Bernoulli random distribution. Also, the consideration of a nonlinear term in the input control scheme is a novel work for the proposed model. Suitable robust reliable design of control for a practical actuator fault model is constructed to guarantee the asymptotic stability of the system with H∞ performance level. A new form of Lyapunov-Krasovskii functional with triple integral terms are formulated, and the reciprocally convex technique is utilized to establish the sufficient stability criterion in the form of linear matrix inequalities. Finally, the effectiveness of the proposed control method is shown through numerical examples, and we can confirm that the derived condition attained less conservatism than the existing results.
Reliable H∞ controller for uncertain networked control systems with additive time-varying delays and nonlinear actuator faults
The Journal of Analysis, 2019
In this paper, the problem of exponential stability for a class of networked control system is in... more In this paper, the problem of exponential stability for a class of networked control system is investigated. Proposed system consisting additive time-varying delays, parameter uncertainties, external disturbance, nonlinearities and actuator faults which makes more generalized system model. The inclusion of actuator fault matrix and nonlinear perturbation in the formulation of reliable controller gives more practical applications in networked control system. The main goal of this paper is to formulate a reliable H∞ controller which assures the exponential stability of considered system. Based on the integral inequality technique, a new linear matrix inequality criteria has been obtained by formulating a suitable Lyapunov–Krasovskii functional for the exponential stability of the proposed networked control system. Finally, numerical example is provided to validate the effectiveness of the proposed method.
Papers by Arunagirinathan S
Robust T‐S fuzzy‐model‐based nonfragile sampled‐data control for cyber‐physical systems with stochastic delay and cyber‐attacks
IET control theory & applications, Apr 9, 2024
Generalized delay-dependent reciprocally convex inequality on stability for neural networks with time-varying delay
Mathematics and Computers in Simulation, Feb 29, 2024
General stability criteria for time‐delay systems using a new delay‐dependent reciprocally convex inequality
Mathematical Methods in the Applied Sciences, Sep 30, 2023
Robust Attitude Sampled-data Control for Flexible Spacecraft under Randomly Missing Measurements and Attacks
2022 13th Asian Control Conference (ASCC)
A novel observer-based approach to delay-dependent LFC of power systems with actuator faults and uncertain communications conditions
International Journal of Electrical Power & Energy Systems, 2021
Abstract In this paper, a novel observer-based approach is proposed for the delay-distribution-de... more Abstract In this paper, a novel observer-based approach is proposed for the delay-distribution-dependent (DDD) load frequency control (LFC) of multi-area power systems with actuator faults and probabilistic communication conditions. LFC is designed considering missing data which obey the Bernoulli distribution and actuator faults. After that, an observer gain matrix is constructed for realizing Lyapunov stability, where delay-dependent stability criteria are derived under the consideration of different factors such as packet dropout during data transmission and faults in control. The stability conditions are derived in terms of linear matrix inequalities to achieve less conservative results in the communication delay and H ∞ performance. Finally, the efficiency of the proposed observer-based DDD LFC is demonstrated and compared through time-domain simulations.
Robust reliable H ∞ control design for networked control systems with nonlinear actuator faults and randomly missing measurements
International Journal of Robust and Nonlinear Control, 2019
In this paper, the robust reliable H∞ controller is designed for the problem of nonlinear actuato... more In this paper, the robust reliable H∞ controller is designed for the problem of nonlinear actuator fault case in the uncertain networked control systems with randomly occurring missing data. More precisely, the occurrence of missing measurements is modeled by a stochastic variable in terms of Bernoulli random distribution. Also, the consideration of a nonlinear term in the input control scheme is a novel work for the proposed model. Suitable robust reliable design of control for a practical actuator fault model is constructed to guarantee the asymptotic stability of the system with H∞ performance level. A new form of Lyapunov-Krasovskii functional with triple integral terms are formulated, and the reciprocally convex technique is utilized to establish the sufficient stability criterion in the form of linear matrix inequalities. Finally, the effectiveness of the proposed control method is shown through numerical examples, and we can confirm that the derived condition attained less conservatism than the existing results.
Reliable $$\mathcal {H}_{\infty }$$ H ∞ controller for uncertain networked control systems with additive time-varying delays and nonlinear actuator faults
The Journal of Analysis, 2018
In this paper, the problem of exponential stability for a class of networked control system is in... more In this paper, the problem of exponential stability for a class of networked control system is investigated. Proposed system consisting additive time-varying delays, parameter uncertainties, external disturbance, nonlinearities and actuator faults which makes more generalized system model. The inclusion of actuator fault matrix and nonlinear perturbation in the formulation of reliable controller gives more practical applications in networked control system. The main goal of this paper is to formulate a reliable $$\mathcal {H}_{\infty }$$H∞ controller which assures the exponential stability of considered system. Based on the integral inequality technique, a new linear matrix inequality criteria has been obtained by formulating a suitable Lyapunov–Krasovskii functional for the exponential stability of the proposed networked control system. Finally, numerical example is provided to validate the effectiveness of the proposed method.
Improved results on asymptotic stability criteria for additive time-varying delay system and its applications
2019 Fifth Indian Control Conference (ICC), 2019
This paper is interested with the asymptotic stability for time-varying delay system. Using the h... more This paper is interested with the asymptotic stability for time-varying delay system. Using the higher order reciprocally convex technique, we derived a new delay-dependent sufficient conditions for the stability analysis of considered system in terms of Linear Matrix Inequalities (LMIs) by using Lyapunov-Krasvoskii Functional (LKF) method. Finally, two numerical examples are solved to express the effectiveness and less conservatism of the derived conditions.
Uploads
Publications by Arunagirinathan S
Papers by Arunagirinathan S