Sliding Mode Control in Dynamic Systems

Uppal, Ali Arshad; Azam, Muhammad Rizwan; Iqbal, Jamshed

doi:10.3390/electronics12132970

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…The upper bound of the dynamic error is determined for a quality criterion that is assumed in advance. The integral-square [25] and absolute error [26] criteria are considered, and for each of these, the upper bound of the dynamic error is determined together with the corresponding signal with constraints. The value of this error is calculated in relation to the reference, which may be a low-pass analog filter [27] with a bandwidth corresponding to the upper operating frequency of the charge mode accelerometer.…”

Section: Introductionmentioning

confidence: 99%

Extended Calibration of Charge Mode Accelerometers to Improve the Accuracy of Energy Systems

Tomczyk

2023

Energies

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This paper presents an extended calibration procedure for mode accelerometers, which makes it possible to compare the accuracy of sensors of this type from different manufacturers. This comparison involves determining the upper bound on dynamic error for a given quality criterion, i.e., the integral square error and absolute error. Therefore, this article extends the standard calibration implemented in engineering practice using tests, providing a value for the upper bound on dynamic error as an additional parameter describing the accelerometer under consideration. This paper presents the theoretical basis for this type of solution, which is partly based on measurement data obtained from a standard calibration process and on the results of parametric identification. The charge mode accelerometer is considered here because this type of sensor is commonly used in the energy industry, as it can operate over a wide range of temperatures. The calculation results presented in this paper were obtained using MathCad 5.0 software, and the tests were carried out using an accelerometer of type 357B21. In the experimental part of this article (Results of Extended Calibration section), values for the upper bound of the dynamic error were determined for two error criteria and constrained simulation signals related to these errors. The impact of interference on the results of accelerometer tests was omitted in this paper.

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Section: Introductionmentioning

confidence: 99%

Extended Calibration of Charge Mode Accelerometers to Improve the Accuracy of Energy Systems

Tomczyk

2023

Energies

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“…Due to its fast response and strong robustness [20,21], finite-time control in the field of spacecraft control is becoming a hot research topic [22,23]. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Homogeneous Finite-Time Pose Tracking of Leader–Following Spacecraft Formation Using a Twistor-Based Model

Guo,

Chen,

Zhang

et al. 2023

Electronics

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For integrated pose control of six-degree-of-freedom (6-DOF) leader–following spacecraft formations, the coupled relative pose between two spacecraft is described by a unified model in the framework of twistors, based on which a finite-time control law is devised for the 6-DOF dynamic system. Firstly, some necessary coordinate frames are defined, and then, relative 6-DOF dynamics of the follower spacecraft with respect to the desired frame are modeled by using twistors. Secondly, an integrated pose controller is designed for the 6-DOF formation that takes full advantage of homogeneous theory to guarantee finite-time stability. Finally, numerical simulations are carried out to validate the effectiveness of the proposed controller. Developing integrated 6-DOF formation control law based on twistors is more straightforward than conventional methods, and the finite-time algorithm achieves stronger robustness than asymptotic ones.

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Optimal oxygen excess ratio control for PEM fuel cells based on Backstepping technique

El Aoumari,

Ouadi,

El-Bakkouri

et al. 2024

IFAC-PapersOnLine

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Sliding Mode Control in Dynamic Systems

Abstract: Due to its inherent robustness and finite time convergence, sliding mode control (SMC) is extensively used for the control of nonlinear uncertain systems [...]

Cited by 5 publications

References 12 publications

Extended Calibration of Charge Mode Accelerometers to Improve the Accuracy of Energy Systems

Extended Calibration of Charge Mode Accelerometers to Improve the Accuracy of Energy Systems

Homogeneous Finite-Time Pose Tracking of Leader–Following Spacecraft Formation Using a Twistor-Based Model

Optimal oxygen excess ratio control for PEM fuel cells based on Backstepping technique

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