Tuning of a time‐delayed controller for a general class of second‐order linear time invariant systems with dead‐time

Villafuerte-Segura, Raúl; Medina-Dorantes, Francisco; Vite, Leopoldo; Aguirre‐Hernández, Baltazar

doi:10.1049/iet-cta.2018.5082

Cited by 18 publications

(18 citation statements)

References 22 publications

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“…Since the controller does not contain any derivative term it would not be noise amplification problem. Thus, it is not necessary to consider any additional filter during the experimental realization [50,51,65,66].…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

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A Novel Modified Delay-Based Control Algorithm with an Experimental Application

Özbek

Eker

2019

ITC

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In the present article, a new modified delay-based control structure is proposed to improve the closed-loop performance of control systems. The controller is designed for a second-order linear time-invariant system. The controller parameters are tuned by using the integral of the absolute error criterion. Theoretical results are simulated and experimentally applied to an electromechanical system, which is identified with an interactive system identification tool. It is shown that the present controller provides better control measures and time domain specifications compared with the classical PID and PI-PD controllers in the presence of measurement noise as well as uncertainties.

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Section: Simulation and Experimental Resultsmentioning

confidence: 99%

“…The block diagram is presented in Figure 7. In fact, this control structure is different from the controllers presented in [33,47,65] because of the delayed feedback part instead of a delay output feedback.…”

Section: Modified Control Structurementioning

confidence: 99%

A Novel Modified Delay-Based Control Algorithm with an Experimental Application

Özbek

Eker

2019

ITC

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“…Delay-based controllers have as their main advantages the simplicity with which control laws are designed and, as a consequence, their practical implementation facility. Common applications of such controllers focus mainly on second-order systems, e.g., regulation problems of DC servomotors [18,31], haptic virtual systems [20], underactuated mechanical system [32], and numerous academic examples. In the present proposal, a more challenging implementation is addressed: a flexible joint robotic arm (fourth order system), where trajectory tracking tasks are addressed.…”

Section: Introductionmentioning

confidence: 99%

σ‐Stabilization of a Flexible Joint Robotic Arm via Delayed Controllers

et al. 2019

Self Cite

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In the present contribution, the problem of establishing tuning rules to proportional retarded controller for LTI systems is addressed. Based on the D-decomposition methodology and σ-stability analysis, analytic conditions are determined on the parameters of a delayed controller that guarantee us that the system response reaches the maximal decay rate. The conditions presented in this paper are tested experimentally in tracking tasks of a flexible joint robotic arm.

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“…Time-delay phenomenon is often encountered in many practical control systems such as electrical networks and engineering systems [25][26][27][28][29]. Many scholars have studied the stability of a system with time delay.…”

Section: Introductionmentioning

confidence: 99%

“…Kinzel [28] investigated the conditions for strong and weak chaos and synchronisation in networks with multiple time delays. Villafuerte et al [29] tuned of a time-delayed controller for a general class of second-order linear time invariant systems with dead time. Some erratic behaviours occur when the time delay exists in PTGS, which generates oscillations, instability and poor performances.…”

Section: Introductionmentioning

confidence: 99%

Dynamical assessment of a PTGS with time delay

Liu

Chen

et al. 2019

IET Renewable Power Generation

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As power systems grow reliant on large-scale integration of renewable energy sources, pumped-storage power stations are being called on to provide greater adjustment capabilities. This study focuses on the stability and fast-slow dynamics of a pump-turbine governing system (PTGS). First, the time delay τ is considered into the PTGS since a lag in time exists between the signal and response in the hydraulic servo system. Second, six analytical expressions for the transfer coefficients of the guide vane opening in the process of wide-ranging load decrease are obtained utilising the complete characteristic curve of pump turbines. The effects of the time delay τ on system stability for the transient process are explored. Furthermore, considering the dynamic transfer coefficient e is a variable during the operation, the authors introduce the intermediate variable e as a periodic excitation into the PTGS. From the perspective of non-linear dynamics, the bursting oscillation behaviours of the multi-scale coupling system are analysed in detail. On the basis of practise engineering, the stability of the PTGS is studied in depth. All of the above methods and results supply the theoretical basis for maintaining a stable operation of pumped-storage power stations.

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Tuning of a time‐delayed controller for a general class of second‐order linear time invariant systems with dead‐time

Cited by 18 publications

References 22 publications

A Novel Modified Delay-Based Control Algorithm with an Experimental Application

A Novel Modified Delay-Based Control Algorithm with an Experimental Application

σ‐Stabilization of a Flexible Joint Robotic Arm via Delayed Controllers

Dynamical assessment of a PTGS with time delay

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