Salah Kamel

Aswan University | SVU · Department of Electrical Engineering

This research provides an adaptive control design in a photovoltaic system (PV) for maximum power point tracking (MPPT). In the PV system, MPPT strategies are used to deliver the maximum available power to the load under solar radiation and atmospheric temperature changes. This article presents a new adaptive control framework to enhance the perfor...

The voltage source converter (VSC) based HVDC (high voltage direct current system) offers the possibility to integrate other renewable energy sources (RES) into the electrical grid, and allows power flow reversal capability. These appealing features of VSC technology led to the further development of multi-terminal direct current (MTDC) systems. MT...

This paper studies the problem of the energy system optimization for photovoltaic (PV) generator supplying the electric vehicle. The used photovoltaic generator was conceived around a high- efficiency triple-junction solar cell InGaP/InGaAs/Ge. To adopt the photovoltaic generator to the load and to track the maximum power points, a DC-DC converter...

This study proposes an incorporated strategy based on energy storage systems (ESSs) like plug-in electric vehicles (PEVs) with load frequency control (LFC) to enhance the frequency stability during high penetration of renewable energy sources (RESs). Furthermore, an innovative-cascaded controller is used in the LFC loop, and PEVs are considered in...

The electricity sector is evolving dramatically [...]

Short-term hydrothermal scheduling (STHS) is taking an important consideration in the power system for economics operation. The solution to the STHS problem gives time-varying scheduling of power generation with available hydro and thermal units aims to attain the cost saving of thermal units for a given time period. It is a non-convex optimization...

Accurate modeling of photovoltaic (PV) modules/cells is crucial for evaluating the efficiency of solar PV systems. However, the lack of specific parameters of solar cells, which are not included in the manufacturer’s datasheet, often results in flawed cell modeling. Quick and convenient parameter extraction techniques are required to overcome this...

This paper addresses the challenge of protecting electrical networks in the presence of distribution generators (DGs). The use of DGs affects fault currents, leading to miscoordination between protection relays and causing constraints on network reliability. To tackle this issue, the authors propose an adaptive protection scheme (APS) based on a mo...

One of the most important aspects of power quality for a distribution network's operation is the voltage sag issue. Simultaneous starting of irrigation motors fed from a distribution network leads to a voltage drop, which degrades the network's power quality. Mitigation of the voltage sag was carried out before by using superconducting magnetic ene...

This study focuses on analyzing the robust stability regions and robustness margin of a time‐delayed load frequency control (LFC) system with Electric Vehicles (EVs) using the Kharitonov Theorem. Communication time delays in LFC systems can jeopardize stability and reliability, leading to suboptimal controller performance. Integrating EVs into LFC...

The significance of FACTS devices has been increasing as they have the ability to donate compensation for power systems, making a significant impact on power system stability and power transfer issues. However, to optimize the performance of these devices, it is important to carefully select their sizes and locations. This article aims to determine...

The rapid advancement of renewable energy sources (RESs) has led to a decrease in system inertia and an exacerbation of the instability issue. Hence, this study puts forward an approach to bolster the stability of the power grid amidst the presence of RESs and disturbances in load conditions. The strategy utilizes controlled energy storage systems,...

This study addresses the challenging task of solving optimal reactive power dispatch (ORPD) while incorporating renewable energy resources (RERs), considering their stochastic and time-varying nature. Specifically, the focus is on solving the stochastic optimal reactive power dispatch (SORPD) problem, taking into account uncertainties in load deman...

The supply-demand-based optimization (SDO) is among the recent stochastic approaches that have proven its capability in solving challenging engineering tasks. Owing to the non-linearity and complexity of the real-world IEEE optimal power flow (OPF) in modern power system issues and like the existing algorithms, the SDO optimizer necessitates some e...

The study proposes a a modified version of African Vultures Optimization Algorithm (AVOA) to address the optimal power flow (OPF) issue. The developed optimizer called Chaotic AVOA (CAVOA). Prior to applying CAVOA to the problem at hand, its accuracy is evaluated using 23 benchmark functions. The production powers of WTs that are interrupted are pr...

The increasing use of non‐linear loads in electrical distribution systems (EDS) led to a greater need for reactive power compensation, losses minimization, improved voltage and stability. This paper proposes the optimal integration of hybrid photovoltaic distributed generation (PVDG) and distribution static synchronous compensator (DSTATCOM) into I...

https://www.elspub.com/journals/renewable-and-sustainable-energy/special_issues/renewable-energy-integration-in-smart-grids-advancements-challenges-and-opportunities About This Special Issue The integration of renewable energy sources into smart grids presents a promising solution to meet the growing energy demands sustainably. However, the interm...

Power-operational problems must be resolved with flexible AC transmission systems (FACTS) and optimum power flow (OPF). The complexity of power flow analysis in modern power network models is increased by the unpredictability of renewable energy generating sources in addition to the challenge of determining the appropriate locations and ratings for...

In rural or underdeveloped areas, microgrid failures are common occurrences, which underscores the importance of implementing an effective energy management plan. A microgrid's battery energy storage system is a critical component of such a plan. The system can regulate voltages, mitigate imbalances, and increase system reliability, making it vital...

The integration of demand response programs (DRPs) into the energy management (EM) system of microgrids (MGs) helps in improving the load characteristics by allowing consumers to interoperate for achieving techno-economic advantages. In this paper, an improved algorithm is called LINFO is proposed for modifying search ability of the original weIght...

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With the development of industry, population growth, and suburbanization, load demand is constantly increasing from year to year. Overload demand has greatly strained the distribution network (DN), resulting in increased power losses due to the high-power flow. Therefore, it becomes very important to minimize power losses at the DN to maximize the...

To achieve carbon neutrality by 2050, additional measures must be taken, including the extensive incorporation of renewable energy sources (RESs) [...]

This paper presents a novel approach to enhance the frequency stability of an interlinked power system considering the integration of renewable energy sources and energy storage systems. The proposed method utilizes an optimal fractional Proportional-Integral-Derivative (PID) controller, with its parameters determined by the Dung Beetle Optimizer (...

Voltage instability and power loss are significant problems in distribution Systems (DS). However, these problems are usually mitigated by the optimal integration of distributed generation (DG) units in the DN. In this regard, the optimal location and size of the DGs are crucial. Otherwise, System performance will deteriorate. This study is conduct...

This paper introduces a multi-objective variant of the marine predators algorithm (MPA) called the multi-objective improved marine predators algorithm (MOIMPA), which incorporates concepts from Quantum theory. By leveraging Quantum theory, the MOIMPA aims to enhance the MPA’s ability to balance between exploration and exploitation and find optimal...

Solving the energy management (EM) problem in microgrids with the incorporation of demand response programs helps in achieving technical and economic advantages and enhancing the load curve characteristics. The EM problem, with its large number of constraints, is considered as a nonlinear optimization problem. Artificial rabbits optimization has an...

In this paper, different methods are utilized to solve the coordination issue involving directional overcurrent relays (DOCRs) and distance relays. The proper coordination of DOCRs and distance relays is a critical issue for system security in electrical networks. Finding the DOCRs setting, pickup current(Ip) and timed dial setting (TDS), and opera...

The reliability of electrical systems is a critical operational characteristic for distribution companies. On the other hand, they pay great attention on reducing losses in primary and secondary distribution lines. In this article, a modified Jellyfish Search (MJFS) algorithm is presented for handling Optimal Network reconfiguration (ONR) in Medium...

The aim of the optimization economic load dispatch (ELD) problem is to assign the optimal generated power of the thermal units for cost reduction with satisfying the loading of the operational constraints. The ELD is a high-dimensional and non-convex problem that became a more complex problem in the case of optimizing the output generated power of...

This paper presents a hybrid method for optimally locating the EV parking lot (PL) and improving power quality. This advanced hybrid method is the combined operation of Atomic orbital search (AOS) and Arithmetic optimization algorithm (AOA) and is known as the Atomic orbital search Arithmetic optimization algorithm AOSAOA method. This research show...

This work put forward the design of a sooty tern optimization algorithm (STOA) tuned cascaded proportionalintegral and tilt-integral-derivative-filter (CPI-TIDF) for combined load frequency control and automatic voltage regulation (CLFC-AVR) of the interconnected power system (IPS). The CLFC-AVR analysis is initiated on laying 10% step load disturb...

In this work, the stability of dual area multisource (DAMS) interconnected power system (IPS) is assessed subjected to the perturbation in step load (SLP) of 10% in area-1. For this purpose, a two-degree-of-freedom (DOF) PID (2DOFPID) controller optimized with the newest algorithm of the sooty tern optimization technique (STOT) is enacted as the se...

This paper presents a new hybrid method for optimally locating and sizing the Electric vehicle charging stations and managing the electric vehicle charging system. The developed hybrid method is a joint action of Mexican Axolotl Optimization (MAO) and Wild Horse Optimizer (WHO) and called as MAOWHO method. The main use of this new method is for pla...

To reduce exhaust emissions that contribute to climate change, many countries aim to replace internal combustion engines with electric vehicles (EVs). As this change takes place, it is important to understand the potential impacts of EVs on the distribution grid. There must be a plan for grid flexibility quickly given the additional grid costs and...

In recent years, electricity networks across the globe have undergone rapid development, especially with the incorporation of various renewable energy sources (RES). The goal is to increase the penetration level of RES in the power grid to maximize energy efficiency. However, the optimal power flow (OPF) problem for conventional power generation wi...

The electrical power industry has experienced an unprecedented pace of digital transformation as a prevailing economic trend in recent years. This shift towards digitalization has resulted in an increasing interest in the collection of real-time equipment condition data, which provides opportunities for implementing sensor-driven condition-based re...

This study evaluates the degradation of mono, poly, and thin-film silicon solar photovoltaic (PV) modules through visual and electrical measurements in Dhaka's tropical wet and dry climate conditions. For this, several sites of rooftop solar PV installations in Dhaka, aged at least five years, were selected for field investigation. A visible inspec...

The Dushanbe urban electrical network was specified as the focus of destruction to cable, overhead, and transformer power stations with voltages varying from 6-10 / 0.4 kV in the study. Statistics of emergency shutdowns by month for overhead cables and transformer sub-stations with a voltage of 6-10/0.4 kV for the years 2018-2019 were created using...

The interaction between the wind farm and the series-compensated transmission line may lead to the sub-synchronous oscillation (SSO) phenomenon which affects the system stability and equipment safety. Among the presented methods for damping the SSO phenomenon, the supplementary damping controller (SDC) is the most prevalent method because of its lo...

Hybrid renewable energy sources and microgrids will determine future electricity generation and supply. Therefore, evaluating the uncertain intermittent output power is essential to building long-term sustainable and reliable microgrid operations to fulfll the growing energy demands. To address this, we proposed a robust mixed-integer linear progra...

The use of artificial intelligence (AI) and machine learning (ML) in electric vehicles (EVs) is gaining popularity as a means of improving information security. However, there is a lack of research on the specific ways in which AI and ML are being used in this context. This review aims to provide an overview of the current state of AI and ML-based...

The purpose of this article is to study a nine-switch converter dedicated to feed two induction motors (IM) used in electric vehicle (EV). The work relies on finding a configuration of a power converter with fewer power components for cost and volume reduction. For this we begin by modeling this converter in order to study it then we developed a co...

Multiple power sources and traction machines are incorporated within hybrid electric vehicles (HEV) to enhance their safety and propulsion power. However, such vehicles suffer from undesired passenger felt jerks during drivetrain commutations and from large power peaks during power source switchings that reduces vehicle performance and power source...

In the electric vehicle power systems, the energy management strategy (EMS) is very important to improve the vehicle's energy consumption. The purpose of this paper is to propose an EMS to effectively regulate the energy flow from the energy sources, minimize the fuel consumption, and ensure the propulsion power of the vehicle under complex driving...

The integration of several renewable energy sources (RESs), such as photovoltaic generation (PVG) and wind turbine generation (WTG), introduces a significant amount of uncertainty for the optimal planning of the electrical power systems. The optimal power flow (OPF) problem became more difficult to solve when RESs uncertainties were taken into acco...

Permanent magnet synchronous motors (PMSM) have become prevalent in industry and play an essential role in managing industrial processes, automation systems, and renewable energy sources due to their superior efficiency, torque, and power density. However, because it operates like a nonlinear system with quick dynamics, variable parameters during o...

The Economic and Emission Dispatch (EED) method is widely used to optimize generator output in a power system. The goal is to reduce fuel costs and emissions, including carbon dioxide, sulphur dioxide, and nitrogen oxides, while maintaining power balance and adhering to limit constraints. EED aims to minimize emissions and operating costs while mee...

Series-compensated transmission lines can lead to a sub-synchronous resonance (SSR) phenomenon at high compensation levels, where the system lacks stability. Gate-controlled series capacitor (GCSC) is widely used to damp the SSR. Here, an effective and new methodology for damping the SSR is presented. The proposed method aims to alleviate the SSR p...

This paper proposes an improved version of the Hunter-prey optimization (HPO) method to enhance its search capabilities for solving the Optimal Power Flow (OPF) problem, which includes FACTS devices and wind power energy integration. The new algorithm is inspired by the behavior of predator and prey animals, such as lions, wolves, leopards, stags,...

Flexible Alternating Current Transmission System (FACTS) are power electronic-based devices connected to the electrical systems in series or shunt or combined series-shunt. FACTS can control the system parameters such as voltage magnitude and phase angles of the buses, the power flow through the transmission line, and the transmission lines’ impeda...

This study assessed the impact of gross domestic product (GDP), education, natural resources, remittances, and financial inclusion on carbon emissions in G-11 countries from 1990 to 2021. Based on the negative impact of pollution and the need for sustainable development, this study examined factors affecting CO2 emissions in G-11 countries using no...

The focus of this study is on solving the coordination problem between distance relays (DISRs) and directional overcurrent relays (DOCRs), which is a complex nonlinear problem with various constraints. Ensuring proper coordination between DOCRs and distance relays is critical for maintaining the security of electrical networks. The primary objectiv...

The concept of interconnected Multi-Micro Grids (MMGs) is proposed as a promising solution for the improvement of the operation, control, and economic performance of the distribution networks. The energy management of the MMGs is a strenuous and challenging task, especially with the integration of renewable energy resources (RERs) and variation of...

Recently, renewable energy resources such as wind turbines (WTs) and photovoltaic (PV) systems are wildly installed in electrical systems. However, the main challenge that related to these resources is the optimal planning and operation of the power system due to their stochastic natural and intermittency. However, OPF solution in case of consideri...

With the rapid growth of technology and population, there has been a corresponding increase in electricity demand and system load. To meet this demand, the installation of renewable energy sources (RESs), such as wind turbines (WTs) and photovoltaics (PVs), in distribution systems is widely accepted as the best solution. This paper proposes an effi...

This study offers a thorough examination of the zero voltage switching (ZVS) operation range and deadband conditions for a bidirectional DC-DC converter with phase shift control, featuring dual H-bridge. The analysis considers the soft switching range of the DAB converter, accounting for the impact of the headband and the ZVS capacitor. By applying...

In this study, an improved bald eagle search optimization algorithm (IBES) is utilized to develop home energy management systems for smart homes. This research is crucial for energy field researchers who are interested in optimizing energy consumption. The primary objective is to optimally manage load demand, reduce the average peak ratio, lower el...

The increasing demand for energy, coupled with concerns about the environment and finite resources, has made the use of renewable energy sources (RESs) crucial. Although wind and solar energy are one of the most promising sources of renewable energy, their random and uncertain nature poses a challenge for energy management systems. The integration...

Water is a precious resource for agriculture and most of the land is irrigated by tube wells. Diesel engines and electricity-operated pumps are widely used to fulfill irrigation water requirements; such conventional systems are inefficient and costly. With rising concerns about global warming, it is important to choose renewable energy source. In t...

Small-grid projects for the production of electricity can be easily integrated into the energy prod