Zero-Width Quasi-Sliding Mode Band in the Presence of Non-Matched Uncertainties

Latosiński, Paweł; Bartoszewicz, Andrzej

doi:10.3390/en14113011

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…Some of the pioneering contributions for discrete‐time sliding mode control (DTSMC) theory are 15,16 among others. Many efforts have been made afterwards for bringing further refinements‐ like sliding mode band reduction, 17 transient performance enhancements 18 and so on. The latest work in Reference 19, presents an interesting DTSMC application for a unicycle robot.…”

Section: Introductionmentioning

confidence: 99%

Robust temperature tracking and estimation for resistive heater circuit board with implementation

Thakar

Markana

Miyani³

2023

Adv Control Appl

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Summary Resistive heating is an efficient method for temperature control in many applications that need robust control designs. Very few attempts have been reported in this direction to deal robustness issues like parametric variations, disturbances and uncertainties. Moreover, there are hardly any laboratory scaled setups available, that are of low cost and provide ease of implementation for such applications to test various algorithms. To that end, lately a resistive heater circuit board (RHCB) setup has become a benchmark setup for testing. For which, available control schemes largely use PID based schemes so far that are not robust. Besides, they employ numerical derivatives of measurements, resulting in the added noise. To circumvent these issues and to address the mentioned literature gap, this paper reports new experimental and simulation studies by developing new robust control and estimation designs for temperature tracking. We design via sliding mode algorithms, a sliding mode observer (SMO) and discrete‐time sliding mode controller (DTSMC) for an uncertain system of RHCB. The proposed controller outperforms the existing PID schemes and tracks the temperature reference accurately, despite the uncertainties. Moreover, SMO robustly estimates the temperature measurements and provide accurate signal for the control purpose. In addition, this study also reports a first of its kind application of such DTSMC and SMO, for which the idea of using different temporal designs for each of them is employed and integrated together for the ease of implementation on RHCB. Thus, the novelty also lies in how to judicially stitch these approaches and showcase their efficacy through simulation and experimental validations.

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Section: Introductionmentioning

confidence: 99%

Robust temperature tracking and estimation for resistive heater circuit board with implementation

Thakar

Markana

Miyani³

2023

Adv Control Appl

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“…Finally, Latosinski and Bartoszewicz [16] discuss the issue of quasi-sliding mode band width in the control of sampled data systems. Particularly, they propose a novel sliding hyperplane on which the width of this band can be effectively reduced to zero even in the presence of uncertainties.…”

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confidence: 99%

Sliding Mode Controllers in Energy Systems and Other Applications

Latosiński

Bartoszewicz

2023

Energies

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Novel Power-Rate Reaching Law for Quasi-Sliding Mode Control

Adamiak

Bartoszewicz

2022

Energies

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This study elaborates on the quasi-sliding mode control design for discrete time dynamical systems subject to matched external disturbances and modeling uncertainties. In order to provide finite time convergence to the sliding surface and at the same time restrict the control effort, we propose a novel power-rate reaching law utilizing a hyperbolic tangent function. The construction of the reaching law ensures that when the distance between the representative point of the system and the sliding surface is significant then the convergence pace is limited, which results in a reduced control effort. However, as the representative point of the system approaches the sliding surface, the convergence pace increases. Moreover, the study adopts a non-switching-type definition of the sliding motion, which eliminates undesirable chattering effects in the sliding phase. In order to reduce the impact of external disturbances on the system, the model following approach is taken, which allows for the rejection of all but the last disturbance value.

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Zero-Width Quasi-Sliding Mode Band in the Presence of Non-Matched Uncertainties

Cited by 3 publications

References 34 publications

Robust temperature tracking and estimation for resistive heater circuit board with implementation

Robust temperature tracking and estimation for resistive heater circuit board with implementation

Sliding Mode Controllers in Energy Systems and Other Applications

Novel Power-Rate Reaching Law for Quasi-Sliding Mode Control

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