Abdullah Mohammed Al-Shaalan

• Doctor of Philosophy (Electrical Engineering)
• Professor (Full) at King Saud University

Renewable energy sources (RESs) are increasingly combined into the power system due to market liberalization and environmental and economic benefits, but their weather-dependent variability causes power production and demand mismatches, leading to issues like frequency and regional power transmission fluctuations. To maintain synchronization in pow...

The paper conducts a comprehensive analysis of the impact of very large-scale photovoltaic generation systems on various aspects of power systems, including voltage profile, frequency, active power, and reactive power. It specifically investigates IEEE 9-bus, 39-bus, and 118-bus test systems, emphasizing the influence of different levels of photovo...

The future electric loads in the Kingdom of Saudi Arabia (KSA) are increasing significantly, particularly in the Eastern Province of the KSA. These high-rise loads are primarily driven by the operational needs of the Saudi Arabian oil company Aramco, including oil refineries, and the infrastructures of the Saudi Basic Industries Corporation (SABIC)...

The grid-connected converters with two stages are frequently used in renewable energy technologies and applications. Designing the dc-link voltage management scheme is challenging due to the ripples and fluctuations at the dc-link voltage in the grid-connected photovoltaic battery energy storage systems (PV/BES), which results in significant harmon...

Carbon dioxide (CO2) emissions result from human activities like burning fossil fuels. CO2 is a greenhouse gas, contributing to global warming and climate change. Efforts to reduce CO2 emissions include transitioning to renewable energy. Monitoring and reducing CO2 emissions are crucial for mitigating climate change. Strategies include energy effic...

Line outage contingencies in power distribution systems pose critical challenges, leading to disruptions, reduced reliability, and potential cascading failures. These problems include increased vulnerability, limited resilience, and the need for efficient mitigation strategies to enhance the overall system reliability and quality. This study aims t...

In the past few decades, several nations have experienced air pollution and environmental difficulties because of carbon dioxide (CO2) emissions. One of the most crucial methods for regulating and maximizing CO2 emission reductions is precise forecasting. Four machine learning algorithms with high forecasting precision and low data requirements wer...

This paper is thought to be an early attempt to address both the systematic and scientometric quantitative and qualitative data analysis of the worldwide research trends on photovoltaic maximum power point tracking (PV-MPPT) from 1995 to 2021. The science mapping of notable PV-MPPT research outlets, co-authorship network, articles’ citations networ...

Particle Swarm Optimizer (PSO) has three main drawbacks in case of partially shaded photovoltaic systems. First, it converges slowly to the global peak (GP). Second, because PSO is a time invariant, it cannot adhere to a dynamic GP in the presence of various temporal shading patterns and instead, sticks to the first GP. Third, it exhibits high osci...

In a world increasingly aware of its carbon footprint, the quest for sustainable energy production and consumption has never been more urgent. A key player in this monumental endeavor is fuel conservation, which helps curb greenhouse gas emissions and preserve our planet’s finite resources. In the realm of the Industrial Internet of Things (IIoT) a...

Low ripples and variations in the DC-Bus voltage in single-phase Photovoltaic/Battery Energy Storage (PV/BES) grid-connected systems may cause significant harmonics distortion, instability, and reduction in power factor. The use of short-life electrolytic capacitor on the DC-Bus is considered a standard way for reducing these ripples and variations...

Hybrid renewable energy microgrid has become an attractive solution to electrify urban areas. This research proposes a microgrid design problem including photovoltaic (PV) arrays, wind turbine, diesel, and batteries for which Harris hawk optimization (HHO), a metaheuristic technique, is applied. Based on a long-term techno-economic assessment, the...

In the case of partial shading conditions (PSCs), normal equations cannot be completely implemented. The mathematical model of the Photovoltaic (PV) array needs to be modified and re-established with the existence of bypass diodes connected to the PV module, which can alleviate the negative effects of the PSCs and generate several peaks on the PV o...

Energy conservation measures can not only improve energy efficiency; it can also enhance microgrid resilience. This paper aims at investigating energy conservation in a small microgrid, using a new hospital in Riyadh city as a case study, to satisfy the Saudi Building Code (SBC part 601) requirement of energy conservation as the first case. The sec...

The current work contributes an estimate of the time-frequency characteristics of a leakage current in assessing the health condition of a polluted polymeric insulator. A 33 kV polymer insulator string was subjected to a series of laboratory tests under a range of environmental conditions, including pollution, wetting rate (WR), non-soluble deposit...

In this study, a novel bonobo optimizer (BO) technique is applied to find the optimal design for an off-grid hybrid renewable energy system (HRES) that contains a diesel generator, photovoltaics (PV), a wind turbine (WT), and batteries as a storage system. The proposed HRES aims to electrify a remote region in northern Saudi Arabia based on annuali...

Electrification of remote rural areas by adopting renewable energy technologies through the advancement of smart micro-grids is indispensable for the achievement of continuous development goals. Satisfying the electricity demand of consumers while adhering to reliability constraints with docile computation analysis is challenging for the optimal si...

In this article, we present the design and validation of an efficient chipless RFID system. A multi-resonator chipless tag is designed and tested for high bit coding capacity. A high gain, ultra-wideband step-shape rectangular patch (USRP) antenna is proposed to validate the specificity of the tag in terms of its operation. The devised antenna is e...

This article proposes a novel single-input-multi-output (SIMO) converter for photovoltaic (PV) applications. The proposed structure produces multi-outputs with extended n stages. The voltage gain of the proposed topology for each output is enhanced by adding the number of the stage which in turn increases the power. The voltage across the switch is...

This paper introduces a novel metaheuristic approach of sooty terns optimization algorithm (STOA) to determine the optimum parameters of model predictive control (MPC)-based deregulated load frequency control (LFC). The system structure consists of three interconnected plants with nonlinear multisources comprising wind turbine, photovoltaic model w...

In this study, a new distributed generation sizing that inherits the allocation strategy for the IEEE 30-bus benchmark system is proposed. The hybrid crow search-particle swarm optimization technique would select the optimal buses through the automatic cancelation of the unfeasible load buses. Additionally, it performs sizing that inherits allocati...

In this study, a new distributed generation sizing that inherits the allocation strategy for the IEEE 30-bus benchmark system is proposed. The hybrid crow search-particle swarm optimization technique would select the optimal buses through the automatic cancelation of the unfeasible load buses. Additionally, it performs sizing that inherits allocati...

In this research, Renewable Energy (RE) represents the existing power systems with different levels. However, because of the intermittent nature of these sources, it is necessary to analyze systems' reliability with different RE penetration levels. This work presented a simulation method for reliability evaluation of renewable penetrated power syst...

Optimal allocation and sizing of the distributed generations (DGs) attract great attention of many researchers all over the world. In this study, the problems associated to optimal DGs allocation and sizing are divided into two sub-problems. One of them deals with the DGs allocation at the critical buses and the other aims to select the optimal siz...

Smaller size, lower cost and more efficient transformerless inverter connected for PV system, are highly in demand. If the PV inverter has not galvanic isolation, leakage current will appear and the common mode voltage (CMV) will increase. Because of the lack of isolation, the strong ground currents may appear in system which are depending on the p...

Due to the fast increase of photovoltaic (PV) adoption and utilization, their efficiency and power quality become of great importance. The grid connected inverter is a basic part in grid tied solar system. The inverter design has to keep the total harmonic distortion (THD) under permissible and tolerable limits. In this work, several techniques hav...

The penetration of renewable distributed generations (RDGs) into traditional distribution systems (TDSs) remedies many of its deficiencies and shortcomings. Also, it provides mutual technical, economic and environmental benefits for both electricity companies and their customers as well. With a 25% load increase for the standard IEEE 30-bus system,...

In this paper, the impact of interconnection among isolated and dispersed electric power systems have been Investigated and analyzed. Therefore, the methodology proposed in this work is implemented in three real electric power systems in the western part of Saudi Arabia (designated as I, II and III). The outcome of this study revealed positive bene...

In this paper, a probabilistic performance index (PI) has been developed to perform contingency selection and ranking. The results show that considering up to the second level contingency is satisfactory for both accuracy and computation time requirements. The results obtained constitute an essential basis for the analysis of power systems in terms...

This study is attempting to explore the effects of electric power systems interconnection upon enhancing their overall reliability levels and reducing their fixed and operating costs. To justify the practical and tangible benefits of this work, the proposed approach has been applied to three electric utilities in the Western part of Saudi Arabia, n...

This study investigates and analyzes the electric energy interruptions impact upon the residential sector in Riyadh city, the capital of the Kingdom of Saudi Arabia (KSA) resulting from severe power outages. The study results show that this sector which constitutes about 54% of the Saudi Electric Company in the Central Operating Area (SEC-COA) will...

Recent Trends in Energy Systems Conference (RTES), Benha University, Faculty of Engineering, Cairo, Egypt, 3 October 2015

The particle swarm optimization (PSO) is a new optimization technique inspired by the social behavior of animals such as movement of ants and flying phenomena of birds. In this paper, PSO has been used to solve the quadratic assignment problem (QAP), the results shows that the PSO is an efficient algorithm to solve QAP. Matlab is used as simulative...

Abstract -This work investigates and analyses the electric energy interruptions impact upon the residential sector in resulting from severe power outages. The study results shows that this sector will suffer enormous tangible and intangible losses should interruptions occur in specific times, seasons and last for longer durations. In order to reduc...

In Kingdom of Saudi Arabia (KSA), the contribution from buildings towards energy consumption, both residential and commercial, has steadily increased reaching figures of 35% to 40% in the past few years. For this reason, energy efficiency in buildings is a prime objective for energy policy at regional, national and international levels. This resear...

The Ministry of electricity and water in the Kingdom of Saudi Arabia (KSA) reported (2013) that high temperature in summer months leads to an enormous increase demand in the air-conditioning electric load [. This work is aiming for investigating a possible mitigation to this critical problem. In this work, one of the Riyadh city (the capital of KSA...

This work aims at exploring the effects of the interconnection between isolated electric power systems upon some important aspects such as enhancing reliability levels along with reducing installation and operation costs. To discern the advantages associated with this study, the developed methodology has been applied to three existing power systems...

This paper presents methodologies and techniques that can be adopted and used in the quantitative assessment of power system reliability and its application to cost/benefit evaluation in system generation expansion planning. A practical approach that can be used to estimate reliability worth is focused on the evaluation of the expected energy not s...

This paper demonstrates the possibility of achieving a higher Energy Efficiency Ratio (EER) for Room Air Conditioners (RACs) that complies with the Saudi energy efficiency standards and satisfies the energy conservation requirements for the Saudi Building Code (SBC). This study considers several design options for improving the performance and effi...

In developing countries, power system planning faces enormous challenges and problems as, for example, future load growth in the face of uncertainties, the constraints imposed on investment, the type and availability of fuel for the generating units, the need for consolidating the dispersed electric utilities in the isolated regions as a prerequisi...

Purpose – The purpose of this paper is to present a practical method for computing contingency‐based reliability and quality indices in power systems and to answer questions related to how much the system is reliable, how robust it is in surviving random contingencies, how much it is costing to maintain appropriate system security and reliability l...

The introduction of de-regulation and the breakup of generation resulted in attention being directed towards the customer perception. This work presents a framework, which includes both tangible and intangible costs associated with electricity service provision.

Power system planning is difficult, costly and involves many future uncertainties. This paper describes how ~hese aspects are investigated and analyzed based on two major considerations: reliability and cost. This paper also exhibits the benefits that may accure from isolated systems interconnection as well as the importance of some electric system...

In developing countries, power system planning faces nowadays enormous challenges and various problems as, for example, future load growth in the face of uncertainties associated with future load forecasting, the constraints imposed on investment, the type and availability of fuel for the generating units, the need for consolidating dispersed elect...

This paper overviews the traditional cost-ing techniques and examines modelling methods that extend current procedures and improve the probabilistic techniques of production costing. Tiwo previous works have been extended. The first is that of Allan et al., which is an approximate convolving technique based on Fast Fourier Transforms and can be use...

Two of the most important decision-making parameters are reliability and economics; the latter includes both system investment costs and system outage costs. This paper describes how these parameters can be evaluated and the interrelation between them. A case study considers three separate systems of a developing country, each of which must be rein...