Yazar "Kemer, Emre" seçeneğine göre listele

Listeleniyor 1 - 4 / 4
  • Küçük Resim
    Öğe
    Composite anti-disturbance switched H₂ control design for switched systems
    (Sciendo, 2025) Kemer, Emre; Başak, Hasan
    This article addresses the challenge of integrated switched H₂ control with disturbance rejection capabilities for switched systems, particularly when external disturbances are present. A novel anti-disturbance switched H₂ control strategy is formulated, leveraging estimated disturbance values. The formulation is given in Linear Matrix Inequalities (LMIs), establishing sufficient conditions to ensure H₂ performance while maintaining closed-loop stability. To validate the effectiveness of the proposed methodology, it is applied to a practical aero-engine model. Through simulations, it is demonstrated that the closed-loop aero-engine model exhibits remarkable transient performance even in the face of external disturbances. These results underscore the efficacy of the developed approach in enhancing the robustness and performance of switched systems subjected to disturbances. The integration of anti-disturbance capabilities within the H₂ control framework offers a promising avenue for addressing real-world control challenges, particularly in systems characterized by switching dynamics and external perturbations.
  • [ X ]
    Öğe
    A passive fault-tolerant switched control approach for linear multivariable systems: application to a quadcopter unmanned aerial vehicle model
    (ASME, 2020) Başak, Hasan; Kemer, Emre; Prempain, Emmanuel
    This paper proposes synthesis algorithms for the design of passive state- and output-feedback fault-tolerant controllers. Sufficient conditions for the existence and the construction of such fault-tolerant controllers are given in terms of linear matrix inequalities (LMIs) which can be solved efficiently. The state-feedback fault-tolerant controller consists of a family of state-feedback gains switched appropriately according to a stabilizing switching signal so that the closed-loop system satisfies a performance requirement expressed in terms of system L-2 norm. Similarly, the output feedback controller consists of a family of full-order linear, time-invariant controllers switched according to a stabilizing signal that depends only on the controller states. Both approaches are passive in the sense that they do not rely on the detection and/or the estimation of the faults. The proposed approaches are tested on a nonlinear model of a quadcopter. Simulation results show that satisfactory stability, tracking, and disturbance rejection are maintained despite of time-varying actuator faults.
  • Küçük Resim
    Öğe
    Performance analysis of fuzzy-LQR and fuzzy-LQG controllers for active vehicle suspension systems
    (MIM RESEARCH GROUP, 2025) Kemer, Emre; Başak, Hasan
    Suspension systems in vehicles are crucial to both ride quality and driving security. The challenge of creating an effective control mechanism for automotive active suspension systems is addressed in this work. In the event of unforeseen road disturbances, the active suspension systems are intended to deliver a more pleasant ride and good handling. Fuzzy-Linear Quadratic Gaussian (FLQG) and Fuzzy-Linear Quadratic Regulator (FLQR) controllers adapting to road disturbances are proposed to enhance vehicle comfort through the reduction of the driver's overall body acceleration. The simulation findings demonstrate that the FLQR and FLQG controllers are efficient in adjusting the automotive suspension configuration under varying road profiles compared to those of the conventional LQR and LQG controllers.
  • Küçük Resim
    Öğe
    Switched H-2-state-feedback control with application to a fighter aircraft
    (Sage Publications, 2019) Kemer, Emre; Başak, Hasan; Prempain, Emmanuel
    This paper proposes two different H-2-state-feedback controller synthesis algorithms for uncertain linear, time-varying, switched systems. The synthesis algorithms are based on a dwell-time approach, which makes use of time-varying parameter-dependent Lyapunov functions. The control laws consist of state-feedback controllers that are switched according to external signals. The proposed synthesis algorithms are then employed to design switched H-2-state-feedback control laws for the longitudinal dynamics of the ADMIRE fighter benchmark model. The results obtained in simulation show the merits of the proposed approach.