Mohamed Ahmed Khamies

Dr. Mohamed Ahmed Khamies

Aswan University, Aswān, Egypt
orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications

13 April 2022 in Fractal and Fractional
Verified
Journal Article
Open access
PDF file
Ahmed Hamdy Abo ElkasemAhmed Hamdy Abo Elkasem
Ahmed Hamdy Abo Elkasem
MKMohamed Ahmed Khamies
Mohamed Ahmed Khamies
Mohamed Hosny HassanMohamed Hosny Hassan
Mohamed Hosny Hassan
AAAhmed Agwa
Ahmed Agwa
Salah KamelSalah Kamel
Salah Kamel
This study presents an innovative strategy for load frequency control (LFC) using a combination structure of tilt-derivative and tilt-integral gains to form a TD-TI controller. Furthermore, a new improved optimization technique, namely the quantum chaos game optimizer (QCGO) is applied to tune the gains of the proposed combination TD-TI controller in two-area interconnected hybrid power systems, while the effectiveness of the proposed QCGO is validated via a comparison of its performance with the traditional CGO and other optimizers when considering 23 bench functions. Correspondingly, the effectiveness of the proposed controller is validated by comparing its performance with other controllers, such as the proportional-integral-derivative (PID) controller based on different optimizers, the tilt-integral-derivative (TID) controller based on a CGO algorithm, and the TID controller based on a QCGO algorithm, where the effectiveness of the proposed TD-TI controller based on the QCGO algorithm is ensured using different load patterns (i.e., step load perturbation (SLP), series SLP, and random load variation (RLV)). Furthermore, the challenges of renewable energy penetration and communication time delay are considered to test the robustness of the proposed controller in achieving more system stability. In addition, the integration of electric vehicles as dispersed energy storage units in both areas has been considered to test their effectiveness in achieving power grid stability. The simulation results elucidate that the proposed TD-TI controller based on the QCGO controller can achieve more system stability under the different aforementioned challenges.

16 January 2024 in Fractal and Fractional
Verified
Journal Article
Open access
PDF file
Khairy Fathy Abdelsayed SayedKhairy Fathy Abdelsayed Sayed
Khairy Fathy Abdelsayed Sayed
HEHebatallah H. El-Zohri
Hebatallah H. El-Zohri
AAAdel Ahmed
Adel Ahmed
MKMohamed Ahmed Khamies
Mohamed Ahmed Khamies
This study presents the tilt integral derivative (TID) controller technique for controlling the speed of BLDC motors in order to improve the real-time control of brushless direct current motors in electric vehicles. The TID controller is applied to the considered model to enhance its performance, e.g., torque and speed. This control system manages the torque output, speed, and position of the motor to ensure precise and efficient operation in EV applications. Brushless direct current motors are becoming more and more popular due to their excellent torque, power factor, efficiency, and controllability. The differences between PID, TID, and PI controllers are compared. The outcomes demonstrated that the TID control enhanced the torque and current stability in addition to the BLDC system’s capacity to regulate speed. TID controllers provide better input power for BLDC (brushless DC) drives than PI and PID controllers do. Better transient responsiveness and robustness to disturbances are features of TID controller design, which can lead to more effective use of input power. TID controllers are an advantageous choice for BLDC drive applications because of their increased performance, which can result in increased system responsiveness and overall efficiency. In an experimental lab, a BLDC motor drive prototype is implemented in this study. To fully enhance the power electronic subsystem and the brushless DC motor’s real-time performance, a test bench was also built.

27 July 2020 in IEEE Access
Verified
Journal Article
Open access
MKMohamed Ahmed Khamies
Mohamed Ahmed Khamies
Gaber MagdyGaber Magdy
Gaber Magdy
MEMohamed Ebeed
Mohamed Ebeed
FBFahd A. Banakhr
Fahd A. Banakhr
Salah KamelSalah Kamel
Salah Kamel
This paper proposes an efficient control strategy to enhance frequency stability of three-area power system considering a high penetration level of wind energy. The proposed strategy is based on a combination of a Proportional Integral Derivative (PID) controller with a Linear Quadratic Gaussian (LQG) approach. The parameters of the proposed controller (i.e., PID-LQG) are optimally designed by a novel natural physical based-algorithm called Lightning Attachment Procedure Optimization (LAPO). The main objective is to keep the frequency fluctuation at its acceptable value in the presence of high penetration of wind energy, high load disturbance and system uncertainties. The superiority of the proposed PID-LQG controller is validated by comparing its performance with optimal Coefficient Diagram Method (CDM) controller, conventional CDM controller, optimal PID controller-based LAPO, and integral controller. Moreover, the exhaustive results completely demonstrate that the proposed controller gives better performance in terms of overshoot, undershoot, and settling time as well as provides reliable frequency stability for interconnected power systems considering high wind penetration and system uncertainties.

2 November 2021 in Sustainability
Verified
Journal Article
Open access
PDF file
Ahmed Hamdy Abo ElkasemAhmed Hamdy Abo Elkasem
Ahmed Hamdy Abo Elkasem
MKMohamed Ahmed Khamies
Mohamed Ahmed Khamies
Gaber MagdyGaber Magdy
Gaber Magdy
Ibrahim B. M. TahaIbrahim B. M. Taha
Ibrahim B. M. Taha
Salah KamelSalah Kamel
Salah Kamel
This article proposes an intelligent control strategy to enhance the frequency dynamic performance of interconnected multi-source power systems composing of thermal, hydro, and gas power plants and the high penetration level of wind energy. The proposed control strategy is based on a combination of fuzzy logic control with a proportional-integral-derivative (PID) controller to overcome the PID limitations during abnormal conditions. Moreover, a newly adopted optimization technique namely Arithmetic optimization algorithm (AOA) is proposed to fine-tune the proposed fuzzy-PID controller to overcome the disadvantages of conventional and heuristic optimization techniques (i.e., long time in estimating controller parameters-slow convergence curves). Furthermore, the effect of the high voltage direct current link is taken into account in the studied interconnected power system to eliminate the AC transmission disadvantages (i.e., frequent tripping during oscillations in large power systems–high level of fault current). The dynamic performance analysis confirms the superiority of the proposed fuzzy-PID controller based on the AOA compared to the fuzzy-PID controller based on a hybrid local unimodal sampling and teaching learning-based optimization (TLBO) in terms of minimum objective function value and overshoots and undershoots oscillation measurement. Also, the AOA’s proficiency has been verified over several other powerful optimization techniques; differential evolution, TLBO using the PID controller. Moreover, the simulation results ensure the effectiveness and robustness of the proposed fuzzy-PID controller using the AOA in achieving better performance under several contingencies; different load variations, the high penetration level of the wind power, and system uncertainties compared to other literature controllers adjusting by various optimization techniques.

28 May 2024 in IEEE Access
Verified
Journal Article
Open access
Khairy Fathy Abdelsayed SayedKhairy Fathy Abdelsayed Sayed
Khairy Fathy Abdelsayed Sayed
MKMohamed Ahmed Khamies
Mohamed Ahmed Khamies
Ahmed AbokhalilAhmed Abokhalil
Ahmed Abokhalil
Mahmoud Mahrous Amery ArefMahmoud Mahrous Amery Aref
Mahmoud Mahrous Amery Aref
Mahmoud A.MossaMahmoud A.Mossa
Mahmoud A.Mossa
TAThamer A. H. Alghamdi
Thamer A. H. Alghamdi
In Egypt, the production of power and the associated environmental problems are starting to take the stage. One environmentally responsible way to lessen the power crisis is to employ renewable energy sources effectively and efficiently. This paper proposes to develop a hydrogen energy storage-based green (or environmentally friendly) power plant on many Egyptian cities such as Sohag city. To produce green hydrogen, the proposed power station uses energy storage, solar, and wind power. Energy storage systems are used to store extra energy produced by wind turbines and solar panels and to supply energy when the output of renewable energy is low. An optimized design of the proposed power plant uses hydrogen energy to satisfy peak load requirements and reduce GHG (greenhouse gas) emissions. Electrolysis is the method used in the proposed solar/wind power plant to create hydrogen. Water can be split into hydrogen and oxygen via electrolysis, a process that uses electricity. Renewable energy sources can be used to power this procedure, ensuring that the hydrogen produced is "green" and does not contribute to greenhouse gas emissions. The design of the power plant incorporates advanced electrolysis technology, such as proton exchange membrane (PEM) electrolyzers, which are efficient and well-suited for integrating with renewable energy sources.