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Author

S. Barhoumi

Bio: S. Barhoumi is an academic researcher from Tunis University. The author has contributed to research in topics: Ćuk converter & Sliding mode control. The author has an hindex of 1, co-authored 1 publications receiving 6 citations.

Papers
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Proceedings ArticleDOI
01 Dec 2016
TL;DR: In this paper, a sliding mode control (SMC) of a Boost converter for constant power regulation is proposed to improve the dynamical performances, the stability and the robustness of the studied converter.
Abstract: This paper presents a Sliding Mode Control (SMC) of a Boost converter for constant power regulation. As CPL induces negative instability in DC-DC converters, the proposed SMC aims to improve the dynamical performances, the stability and the robustness of the studied converter. The obtained simulation results prove the efficiency and the robustness of the proposed control approach.

6 citations


Cited by
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Journal ArticleDOI
TL;DR: Soft commutation and soft switching of switches and diodes are investigated along with the aforementioned main novelty and detailed theoretical analyses of the proposed SIDO dc–dc converter in continuous conduction mode are presented besides the comparisons with some other structures.
Abstract: In this paper, a single-inductor dual-output (SIDO) dc–dc converter is proposed. The significant feature of the proposed converter is feeding a constant power load in low-voltage side (LVS) port, where even feeding a variable load at LVS does not have any cross regulation to high-voltage side port with the desired approximation. Magnificently, both merits are obtained in open-loop manner, which is an outstanding characteristic in comparison with that of the existed converters. In this paper, soft commutation and soft switching of switches and diodes are investigated along with the aforementioned main novelty. Moreover, detailed theoretical analyses of the proposed SIDO dc–dc converter in continuous conduction mode are presented besides the comparisons with some other structures. Finally, theoretical analyses are verified through a 1500 W experimental prototype results.

15 citations

Journal ArticleDOI
27 Apr 2018-PLOS ONE
TL;DR: An adaptive fractional order sliding mode control scheme is designed for the current tracking control of the Boost-type converter in a Battery/Supercapacitor hybrid energy storage system (HESS).
Abstract: In this paper, an adaptive fractional order sliding mode control (AFSMC) scheme is designed for the current tracking control of the Boost-type converter in a Battery/Supercapacitor hybrid energy storage system (HESS). In order to stabilize the current, the adaptation rules based on state-observer and Lyapunov function are being designed. A fractional order sliding surface function is defined based on the tracking current error and adaptive rules. Furthermore, through fractional order analysis, the stability of the fractional order control system is proven, and the value of the fractional order (λ) is being investigated. In addition, the effectiveness of the proposed AFSMC strategy is being verified by numerical simulations. The advantages of good transient response and robustness to uncertainty are being indicated by this design, when compared with a conventional integer order sliding mode control system.

11 citations

Proceedings ArticleDOI
Jiarong Wu1, Yimin Lu1
01 Nov 2018
TL;DR: Compared with PID control, simulation and experimental results show that the proposed control strategy can achieve faster start-up without overshoots and stronger robustness in restraining resistive loads and CPL disturbances.
Abstract: A DC-DC converter with constant power loads (CPLs) is a type of strongly nonlinear system. CPLs have the characteristic of negative incremental impedance, which may cause system instability during disturbances if the system is not properly controlled. Additionally, parameter uncertainty renders the control problem of nonlinear systems more complex and difficult. In this paper, a feedback linearization adaptive control strategy is proposed to improve the stability of a buck converter with CPLs. Feedback linearization is adopted based on the inverse system method to linearize the large signal average model of the buck converter with CPLs, and a pseudo-linear system is obtained. Then, a model reference adaptive control technology is applied to design a controller for the pseudo-linear system. Finally, compared with PID control, simulation and experimental results show that the proposed control strategy can achieve faster start-up without overshoots and stronger robustness in restraining resistive loads and CPL disturbances.

7 citations

DOI
14 Sep 2021
TL;DR: In this paper, a sliding mode controller using PI structure in sliding surface is proposed to accelerate the system response to reach voltage reference and reduce the steady state error of the boost converter.
Abstract: The use of DC power supply is currently very widely used, one of reason is due to new renewable energy sources. Some of the basic forms of DC voltage regulators that we are commonly used are buck converter, boost converter, and buck-boost converter. The use of the converter depends on the application designed, for instance is an input voltage step-up, which is boost converter. This converter has instability in the output voltage when there is a sudden change in input voltage or load and a voltage drop on the semiconductor components in its converter. This phenomenon can be reduced by adding a controller using some kind of feedback. The controllers that used in this research are the fuzzy-PID controller and PI-SMC (Sliding Mode Controller). Sliding mode controller using PI structure in sliding surface is a nonlinear controller that can accelerate the system response to reach voltage reference and reduce the steady state error. The boost converter performance using proposed controller has quick response than using fuzzy-PID controller. This can be observed in this research when there is a change in the input voltage and load, it shows small recovery time and low voltage deviation.

1 citations