Tuning of the two degrees of freedom FOIMC based on the Smith predictor

Vavilala, Sateesh Kumar; Thirumavalavan, Vinopraba

doi:10.1007/s40435-020-00742-8

Cited by 5 publications

(2 citation statements)

References 38 publications

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“…Teppa-Garrán and Vásquez (2020) utilize a feedforward anticipation control of a desired reference signal whose temporal derivatives are known to conduct the control of a rotary flexible joint. Finally, Vavilala and Thirumavalavan (2021) consider the tuning of the 2-DoF FOIMC based on the Smith predictor.…”

Section: Introductionmentioning

confidence: 99%

Optimal tracking in two-degree-of-freedom control systems: Coupled tank system

Teppa,

FAGGIONI,

GARCIA

2023

JART

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This article presents an optimal design of a two-degree-of-freedom (2-DoF) controller that will lead to zero asymptotic steady-state tracking error. The reference inputs are chosen from the set of steps, ramps, and other persistent signals used currently. The main idea is to transform the tracking 2-DoF problem into an equivalent state-space feedback-control synthesis one. Where, an internal model of the reference input is introduced. Then, through the linear quadratic regulator (LQR) technique, the desired performance objectives are addressed by minimizing a quadratic cost function. Finally, the computed state-feedback optimal gains are linked to the polynomials used within the 2-DoF formalism. The fundamental aspect of the design is that it only utilizes the measurable information of the plant provided by its inputs and outputs and take advantage of efficient state-space numerical algorithms. The proposed method is applied to a coupled-tank system, the results achieved confirm the effectiveness of the approach.

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Section: Introductionmentioning

confidence: 99%

Optimal tracking in two-degree-of-freedom control systems: Coupled tank system

Teppa,

FAGGIONI,

GARCIA

2023

JART

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“…Robust performance and robust stability are assessed with 𝐻 Ꝏ norm [34]. In a recent work by the authors direct synthesis is employed for obtaining the controller [35].…”

Section: Introductionmentioning

confidence: 99%

Analytical design of the fractional order controller and robustness verification

Vavilala

Thirumavalavan

2021

IJRA

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<div data-canvas-width="397.2227827050999">This paper proposes a fractional order controller (FOC) for the level control problem of the coupled tank system, using the desired time domain specifications. The coupled tank system is used in the chemical industries for the storage and mixing of liquids. The FOC is designed analytically using the direct synthesis method. In the direct synthesis method, the Bode's ideal loop transfer function is chosen as the desired transfer function. Bode's loop transfer function has the advantages like robustness to system gain variations, constant phase and very high gain margin. Performance of the proposed controller is compared with the state of the art literature. Simulation results showed that the proposed controller has the least peak overshoot. The robust performance of the proposed controller is also the best. Robust stability of the system with the proposed controller is verified, and the system is found to be robustly stable.</div>

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Direct synthesis-based fractional-order PID controller design: application to AVR system

Fergani

2022

Int. J. Dynam. Control

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Tuning of the two degrees of freedom FOIMC based on the Smith predictor

Cited by 5 publications

References 38 publications

Optimal tracking in two-degree-of-freedom control systems: Coupled tank system

Optimal tracking in two-degree-of-freedom control systems: Coupled tank system

Analytical design of the fractional order controller and robustness verification

Direct synthesis-based fractional-order PID controller design: application to AVR system

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