Ahmad M. A. MalkawiUniversity of Jordan | UJ · Department of Mechatronics Engineering
Ahmad M. A. Malkawi
Doctor of Philosophy
Mechatronics Engineering Dep., The University of Jordan.
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16
Publications
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Introduction
Dr. Ahmad M. A. Malkawi joined The University of Jordan's Department of Mechatronics Engineering in 2019. He is currently an associate professor there. Between 2019 and 2024, he served as an assistant professor in the Department of Mechatronics Engineering at the University of Jordan. From 2020 until 2022, he served as the Deanship of Scientific Research's Assistant Dean for Journals and Computing. Since 2022, he has served as the Deanship of Scientific Research's assistant dean for Computing an
Publications
Publications (16)
Middle Eastern and Arab countries have been experiencing significant advancements in scientific research and development over the past few decades. Understanding the trends, patterns, and impact of research within this region can provide valuable insights into its scientific landscape, identify areas of strength, and uncover potential areas for imp...
Climate change is one of the most essential phenomena studied by several researchers in the last few decades. The main reason this phenomenon occurs is greenhouse gases (GHG), chiefly CO2 emissions. About 30% of the created GHG emissions are achieved by electricity generation. This article investigates the role of renewable energy projects in Jorda...
This paper proposed a dual DC bus nanogrid with 380 V and 48 V buses and allows the integration of distributed energy resources on two buses. The proposed system employs an interlink converter to enable power sharing between the buses. The integration of distributed energy resources has been found to enhance the reliability of the low-voltage bus i...
The average wind speed in a given area has a significant impact on the amount of energy that can be harvested by wind turbines. The regions with the most attractive possibilities are typically those that are close to the seaside and have open terrain inland. There is also good potential in several mountainous locations. Despite these geographical r...
The average wind speed in a given area has a significant impact on the amount of energy that can be harvested by wind turbines. The regions with the most attractive possibilities are typically those that are close to the seaside and have open terrain inland. There is also good potential in several mountainous locations. Despite these geographical r...
![Structure of an artificial neural network [5].](publication/362851135/figure/fig2/AS:11431281089158015@1665447612838/Structure-of-an-artificial-neural-network-5_Q320.jpg)
The sensor units are considered one of the significant technologies that use solar energy as an assistant power source to the batteries. Despite their advantages over the other forms of renewables, solar energy has an intermittent nature which negatively affects the operation of these units. Reaching an effective operation ensuring sustainable unit...
DC bus-voltage signaling (DBS) and droop control are often used in DC nano and microgrids with decentralized distributed energy resources (DERs). This technique effectively enforces the appropriate contributions of power sources and energy storage systems (ESSs) in steady-state situations. The usage of super capacitors (SCs) in conjunction with bat...
This research paper presents a novel maximum power point taking (MPPT) algorithm. The algorithm uses an adaptive calculation block to estimate the solar irradiance and the PV I–V curve circuit parameters based on the PV panel’s measured output current and voltage. In the proposed algorithm, the output power does not oscillate around the maximum pow...
Network modelling is a critical step in the analysis of distribution networks. It is used to relate the input currents and voltages with the output currents and voltages. This work aims to construct a new admittance matrix for distribution networks. The new admittance matrix is derived based on ABCD matrix, which presents the exact model of differe...
Increased world energy demand necessitates looking for appropriate alternatives to oil
and fossil fuel. Countries encourage institutions and households to create their own photovoltaic (PV) systems to reduce spending money in electricity sectors and address environmental issues. Due to high solar radiation in the Kingdom of Saudi Arabia (KSA), the...
DC bus signaling (DBS) is frequently employed for coordinating the operation of Distributed Energy Resources (DERs) in DC micro and nanogrids, in a decentralized way. The V vs. I curve of Renewable Energy Sources (RESs), such as solar photovoltaic (PV), usually includes a droop, a Maximum Power Point Tracking (MPPT) and a current limiting segment/m...
This paper is a contribution for DC MicroGrid control and introduces a rigorous dynamics’ analysis, taking into account intermittency effects. We propose an hierarchical control scheme, based on nonlinear control theory, in particular Lyapunov, backstepping and input/output feedback linearization. The resulting algorithms are simple, comparable to...
DC bus voltage signaling (DBS) and droop control are frequently employed in DC nano and microgrids with distributed energy resources (DERs) operating in a decentralized way. This approach is effective in enforcing the desired contributions of power sources and energy storage systems (ESSs) in steady-state conditions. The use of supercapacitors (SCs...
The purpose of this paper is to present a new adaptive control method used to adjust the output voltage and current of a DC-DC (DC: Direct Current) power converter under different sudden changes in load. The controller used is a PID controller (Proportional, Integrator, and Differentiator). The gains of the PID controller (KP, KI and KD) tuned usin...
