Zobrazeno 1 - 10
of 8 050
pro vyhledávání: '"Saim A"'
Publikováno v:
AIMS Mathematics, Vol 9, Iss 8, Pp 20692-20720 (2024)
In this manuscript, our work was about a qualitative study for a class of multi-complex orders nonlinear fractional differential equations (FDEs). Our methodology utilized the topological degree theory and studied a novel operator tailored for non-si
Externí odkaz:
https://doaj.org/article/fcc92ad73d4249d3b951dbf4abfb953a
Autor:
Borhen Torchani, Ahmad Taher Azar, Anis Sellami, Saim Ahmed, Ibrahim A. Hameed, Ibraheem Kasim Ibraheem, Moamin Ibrahim Jameel Al-Obaidi
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
This article presents an innovative APISMC method applied to PVS, integrating the MPPT technique for a boost converter. The primary objective of this approach is to maximize the converter’s output power while ensuring optimal operation in the face
Externí odkaz:
https://doaj.org/article/6f7dd5c4aa344afda631370868c5009d
Publikováno v:
AIMS Mathematics, Vol 9, Iss 4, Pp 9989-10009 (2024)
This paper presents a scheme of time-delay estimation (TDE) for unknown nonlinear robotic systems with uncertainty and external disturbances that utilizes fractional-order fixed-time sliding mode control (TDEFxFSMC). First, a detailed explanation and
Externí odkaz:
https://doaj.org/article/4df9398859d541cf9bd37e3d80583676
Autor:
Saim Ahmed, Ahmad Taher Azar
Publikováno v:
Results in Engineering, Vol 24, Iss , Pp 102904- (2024)
This work proposes a fixed-time terminal sliding mode control scheme with time delay estimation (FxTSM-TDE) for unknown nonlinear robotic systems under uncertainties and unknown bounded disturbances. The idea of the fixed-time terminal sliding mode c
Externí odkaz:
https://doaj.org/article/ca774a5c13184c9a8bf325edcd3a9d6a
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
This article presents a proportional-integral sliding mode control (PI-SMC) approach for a two-mass variable speed wind turbine (VSWT) system. Most studies on wind turbines typically focus mainly on the electromagnetic part of the generators, or even
Externí odkaz:
https://doaj.org/article/8608a1bd8b664792bf81944356001f16
Publikováno v:
AIMS Mathematics, Vol 9, Iss 4, Pp 7895-7916 (2024)
This work introduces a novel adaptive fixed-time control strategy for nonlinear systems subject to external disturbances. The focus pertains to the introduction of the fixed-time terminal sliding mode control (FxSMC) technique. The proposed scheme ex
Externí odkaz:
https://doaj.org/article/3e4645cbbf054e73b9a9518e76ec3a9d
Autor:
Maeva Cybelle Zoleko Zambou, Alain Soup Tewa Kammogne, Martin Siewe Siewe, Ahmad Taher Azar, Saim Ahmed, Ibrahim A. Hameed
Publikováno v:
Mathematical and Computational Applications, Vol 29, Iss 5, p 88 (2024)
This paper proposes a high-performing, hybrid method for Maximum Power Point Tracking (MPPT) in photovoltaic (PV) systems. The approach is based on an intelligent Nonlinear Discrete Proportional–Integral–Derivative (N-DPID) controller with the Pe
Externí odkaz:
https://doaj.org/article/9bafeb4d5d0f46409d3fae58e330e223
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 4, Pp 102566- (2024)
In this article, a coupled nonlinear problem of hybrid fractional differential equations (HFDEs) is presented for the qualitative work and numerical results. Two types of operators are involved in the research problem. One of them is DβrR which repr
Externí odkaz:
https://doaj.org/article/10966fafc723442896ac6eca2b1a2ea9
Autor:
Saim Ahmed, Ahmad Taher Azar
Publikováno v:
Complex & Intelligent Systems, Vol 10, Iss 1, Pp 369-382 (2023)
Abstract This paper proposes an adaptive fractional-order sliding mode controller to control and stabilize a nonlinear uncertain disturbed robotic manipulator in fixed-time. Fractional calculus is used to construct a fractional-order sliding mode con
Externí odkaz:
https://doaj.org/article/61018f71ca3b47c1bcaf8978158dd8b3
Publikováno v:
PLoS ONE, Vol 19, Iss 8 (2024)
Externí odkaz:
https://doaj.org/article/1463ac234412466fafd4758b8d997720