• أ.د سامر حسن ربيع
  • Samer Hassan Rabih
  • تدريسي : هندسة تقنيات الامن السيبراني
  • Teaching : Cyber Security Engineering Technique
  • دكتوراه هندسة كهربائية طاقة متجددة
  • electrical engineering
  • samer.hassan@esraa.edu.iq
  • samerrabih@gmail.com
  • Google Scholar
  • ORCId
  • Research Id
  • Publons
  • 366

    • نشاطات التدريسي

    البحوث المنشورة

    المؤلفات

    المقررات المكلف بها

    المحاضرات

    مشاريع التخرج

    المقالات داخل المجلة

    نشاطات التدريسي

    نشاطات التدريسي

    إعادة تدوير نفايات الألواح الكهروشمسية
    أ.د سامر حسن ربيع

    إعادة تدوير نفايات الألواح الكهروشمسية

    2024-11-12
    المقررات المكلف بها

    المقررات المكلف بها

    المقررات المكلف بها - 1
    القسم المرحلة الفصل رمز المقرر الوحدات توصيف المقرر
    هندسة تقنيات الامن السيبراني المرحلة الاولى فصل اول CSTE1102 6 أسس الهندسة الكهربائية
    المحاضرات الالكترونية

    المحاضرات الالكترونية

    المحاضرات الالكترونية - 5
    العام المقرر القسم المرحلة المحاضرة
    2024-2025 أسس الهندسة الكهربائية هندسة تقنيات الامن السيبراني المرحلة الاولى - Lecture 6- Fundamental of Electrical engineering
    2024-2025 أسس الهندسة الكهربائية هندسة تقنيات الامن السيبراني المرحلة الاولى - Lecture 5- Fundamental of Electrical engineering
    2024-2025 أسس الهندسة الكهربائية هندسة تقنيات الامن السيبراني المرحلة الاولى - Lecture -1Lab - Fundamental of Electrical engineering
    2024-2025 أسس الهندسة الكهربائية هندسة تقنيات الامن السيبراني المرحلة الاولى - Lecture 2- Fundamental of Electrical engineering
    2024-2025 أسس الهندسة الكهربائية هندسة تقنيات الامن السيبراني المرحلة الاولى - Lecture 1- Fundamental of Electrical engineering
    البحوث

    البحوث

    2024 مجلة جامعة طرطوس
    In this research, the technical effects of the photovoltaic generation are studied on distribution networks, where we used the ETAP program to analyze the flow of a load using the Newton Rafson method on the IEEE33 test network before entering the distributor generator and after entering it in different proportions and in several locations, and we studied actual and responsive losses as well as the effort On the lowest pans in all cases. We found that adding the photovoltaic generation distributed over the most loaded Basbar, the most far from the source and by 30% is the condition that achieves the best reduction rate of actual loss, as well as the best high voltage rate on low -voltage basb In addition to studying a realistic network, which is part of the Tartous Governorate distribution network (the director of industry), which mainly contains the generation of photo distributed by 24.7%, and it was noted that the actual power losses decreased by 70%, as well as the loss of custodian power by 76%, and the fact that the industry network has geographically separate loads from each other In addition, it suffers from a significant low level of voltage levels, so the distributing optimum generation should not be concentrated on one pamper but rather distributed on several viability.

    2023 www.damascusuniversity.edu.sy

    Doubly fed induction generators are one of the most important types used in wind turbines because they are easy to deal with changing wind speeds. These generator are driven by electronic converters where is installed between the stator of generator that connected to the electrical grid and the rotor, several converters ,such as traditional converter and matrix converter, have been used to drive this type of generators. The use of these converters is associated with several problems related to the appearance of distortions in voltage and current and oscillations in electromagnetic torque, in order to reduce these distortions and oscillations and to obtain pure voltage and current waves as much as possible to supply the electrical grid with electrical energy of high quality and efficiency, the multi- level converter which represent the latest used converters because of their unique properties and features as an alternative option to the traditional and matrix converters that have been used.
    In these research, the performance of the doubly fed induction generator was studied and analyzed when it is driven by a multi-level converter in both cases of sub-synchronous and super synchronous speed, where the wind generation system based on the use of the multi-level converter was modeled using MATLAB, the simulation was carried out, and analyze the total harmonic distortion for waves of voltage and current and the results were discussed for speed, stator and rotor currents, voltages of stator and rotor and show the active generated power curve and reactive power curve ,in addition to showing the electromagnetic torque curve and then compare with the cases in which it was used matrix converter and traditional converter where the results of the comparison showed that use of the multi-level converter led to a significant improvement in the performance of the system.

    2023 مجلة جامعة البعث
    Smart transformers, are considered as keyroles in the futuristic smart grids that contain renewables, which are essential part, of distributed generating sources. Rectifiers on medium voltage side in these transformers must have the ability of control active and reactive powers and must compensate reactive power in the network when needed. Modular multilevel converter has many features such as small size filters and low voltage rating semiconductors and a modular structure as it use a medium voltage DC-Link that gives MMC the advantage of connecting to the renewables. In this research, we will study the ability of using the Modular Multilevel converter as rectifier for the smart transformer as we will select its components using a suitable controlling technique to control the output DC voltage to be connected with the high frequency hight to low transformer

    2023 DAMASCUS/ damascusuniversity.edu.sy/mag/conference/
    Increasingly penetration of the Renewable Energy Sources in electric grids especially wind and solar energy has created some challenges in grid stability and controlling the power flow. These challenges led to Smart Grid concept which mainly use smart devices and automatic control systems to provide users their needs in a secure and economical way. Smart transformer is considered as one of the main components of Smart Grid, High Frequency Transformer is the central part of smart transformers to minimize volume and weight requirements. Three stages smart transformer rectifies the grid low frequency high voltage and then generates a high voltage high frequency to be an input of galvanic isolated high frequency transformer which step the voltage down to a high frequency low voltage rectified again by a PWM single-phase rectifier, at the last stage an inverter is used to generate an AC voltage. High frequency low voltage rectifying stage is considered one of smart transformer acting stage. In three-phase systems the conventional Proportional integral controllers are very popular and they have an excellent performance when controlling DC, however it is hard to use these controllers in single-phase rectifiers, also generally speaking it is not useful to use conventional PI controllers to directly control AC current because it’s not possible to adjust the regulator gain to avoid the reference trace response delay which lead to steady state error. Proportional resonant controller has a simple construction and it can minimize controlling delay, achieve zero steady state error, adjust DC-link voltage and it can be used directly in stationary reference frame, in addition the resonant act offer a very high gain at the target frequency. In this research we will explain the mathematic model of the PR controller, study using PR controller in single phase rectifying stage, a simulation is performed in Matlab/Simulink.

    2024 مجلة جامعة البعث
    Three-phase inverters are nowadays used extensively for a wide range of applications related to Power Electronics and Energy Control Applications. Some solutions for Power Quality issues, handling unbalanced and nonlinear loads and low voltage stage of three stages smart transformers demand that the inverter should be able to deal with a neutral connection from the load. The Space Vector PWM implementation and operation for a Four-leg Voltage Source Inverter (VSI) is detailed and discussed in this paper and compared with traditional SPWM, simulation has been done in Simulink/MATLAB. Key words: 3D-Space vector pulse width modulation, four legs Three phases Voltage Source Inverters, Smart transformers.

    2020
    n the Syrian Arab Republic, there are many promising sites such as the Ghab plain, the areas east and west of the city of Homs, the Golan Heights and Quneitra, where wind speeds can be invested for commercial purposes. The average wind speed in remote areas is about 5m/s and is in fact relatively low. Unfortunately, many wind turbine manufacturers do not take into account the low wind speed in the basic design of wind turbines. Only very few hours during the year. The average wind speed of 5m/s is low in terms of energy content compared to the average speed of 8m / s and therefore no concrete efforts have been made to develop the small wind turbine industry at low speeds. The overall goal of designing an ideal wind turbine is to produce wind turbines that can extract the maximum amount of energy at the lowest total cost of the system. This time, the aim is to make the turbine work at low wind speed conditions and thus face design - greater limitations of reduced performance at Low winds add to the starting problem, Turbine performance has been studied in practice by controlling the values of most of the influencing parameters.

    2023 مجلة جامعة البعث
    Due to the increasing electrical loads and the developments that occur in them, there is a need to rebuild cities’ supply networks, and as one of the most effective methods for developing existing cities’ feeding networks with a voltage of 6kV, for example, it is possible to use the so-called deep commitment system, which has several advantages compared to increasing the conductors’ sections or building lines Extra transmission with the same nominal voltage. The practical importance of the research is to benefit from its results when studying the possibilities of developing the electrical network used to feed the city for the same nominal effort used or for a higher nominal effort than the used effort, especially for the Syrian Arab Republic in the stage of reconstruction. To solve the problem presented in the context of the research, the methodology of technical-economic calculations was used, according to the following methods: The method of least squares. The economic areas have been established for the appropriate and logical use of the nominal voltages 6, 20, 66, 230kV, which characterize the electrical distribution network in the Syrian Arab Republic. The costs of the electrical equipment in the electrical transmission stations were also taken into account, which led to an increase in the section of the conductors by [4.04-6.11] times, and thus a decrease in electrical energy losses when transported, and this is what must be paid attention to when designing the electric transmission system.

    2023 مجلة جامعة البعث
    The issue of reducing losses in the distribution network and improving the tension levels in the distribution nodes while maintaining the quality of electrical supply and radial formation is one of the important topics that academic and industrial research centers are working on. The network reconfiguration method is a promising method that receives special attention. The reconfiguration of the electrical network can be carried out using switchgear without or with the presence of distributed generation. The use of distributed generation in the reconfiguration process leads to improving the performance of the network, especially after increasing reliance on renewable energy sources, which are a form of distributed generation. In this research, the reconfiguration of the distribution network was studied in order to reduce its losses and improve the tension levels in its nodes, using the genetic algorithm, which is one of the methods of artificial intelligence. The study was conducted on an IEEE-33BB test network, where the Newton-Raphson method was used to analyze the power flow in the network. The results of the study showed a significant improvement in the performance of the distribution network after the reconfiguration process using distributed generation in terms of reducing losses and raising the tension values in the network nodes.

    2023 مجلة جامعة طرطوس
    In this research, the performance of a photovoltaic system with a capacity of 6,188 MW connected to the network was analyzed based on the stability of voltage, frequency, and harmonics in the countryside of Tartous, by measuring and analyzing electrical variables (voltage (V) - frequency (HZ)) - power factor (P.F.) - total harmonics. For the voltage - the total harmonics of the current - the separate harmonics in both the current and voltage waves), which gives us a clear idea of the effect of connecting the station to the public network, using a device for measuring and analyzing electrical variables (Power Analyzer Device), where the measurements were taken during two periods under different conditions. We found that the total distortion resulting from the voltage and current harmonics during the first period, respectively, is (0.6%, 1.7%), and the discrete (single) harmonics of the voltage and current, as well as the voltage deviation and vibration during the first period, respectively, are (5%, 4%), as well as the frequency deviation (1.1%). ) within the standard limits in the Syrian network. As for the voltage deviation and vibration in the second period, respectively (-0.36%, 2.63%), the frequency deviation (1.59%) was also within the standard limits. As for the frequency vibration in the two periods, it exceeded the permissible value, and an increase in the harmonic distortion of the two waves was observed. The voltage and current during the second period at low generation conditions respectively (1.4%, 1.8%) increased slightly but remained within the standard limits.

    2023 مجلة جامعة البعث
    Due to the increasing electrical loads and the developments that occur in them, there is a need to rebuild cities’ supply networks, and as one of the most effective methods for developing existing cities’ feeding networks with a voltage of 6kV, for example, it is possible to use the so-called deep commitment system, which has several advantages compared to increasing the conductors’ sections or building lines Extra transmission with the same nominal voltage. The practical importance of the research is to benefit from its results when studying the possibilities of developing the electrical network used to feed the city for the same nominal effort used or for a higher nominal effort than the used effort, especially for the Syrian Arab Republic in the stage of reconstruction. To solve the problem presented in the context of the research, the methodology of technical-economic calculations was used, according to the following methods: the gradient method. The economic areas have been established for the appropriate and logical use of the nominal voltages 6, 20, 66, 230kV, which characterize the electrical distribution network in the Syrian Arab Republic. The costs of the electrical equipment in the electrical transmission stations were also taken into account, which led to an increase in the section of the conductors by [4.04-6.11] times, and thus a decrease in electrical energy losses when transported, and this is what must be paid attention to when designing the electric transmission system.

    2018 مجلة جامعة طرطوس
    Biomass has the potential to create sustainable energy systems, which is critical to social life. Key issues related to biomass resources include household waste, which is disposed of randomly, causing many environmental, economic and social problems The aim of the paper shows the importance of the use of various renewable energies and biomass energy in particular through the study and design of a biopharmaceutical that produces biogas for domestic and environmental uses. This article includes ways to convert biomass into biofuels and environmental benefits. And an economic study showing the time of recovery of the full cost of this project and whether the use of this digester economically suitable for use or not. The research aims to emphasize the importance of biomass energy in generating electricity as a new energy and environmental contribution. Such a policy would reduce dependence on oil and thus enhance the sustainable biomass supply chain.

    2024 مجلة جامعة البعث
    The world has recently witnessed a significant expansion in the use of electric arc smelting furnaces, due to the possibility of controlling operating conditions and achieving high production quality. However, it is considered a non-linear turbulent electrical load .They change rapidly with time , causing electrical disturbances that have a dangerous negative impact on the electrical distribution networks that feed them and their components. In this research, the disturbances in the quality of the electrical supply resulting from an electric arc furnace with a capacity of 21 MVA and a capacity of 40 tons of scrap metal were measured and analyzed. Using a programmed energy analyzer device (Chauvin Arnoux (CA) 8334B) according to the international standard specifications EN/IEC 61000 -3-3-2013, the network and oven model on which the tests were conducted was built using the Matlab/Simulink environment.

    2024 مجلة جامعة البعث
    The world has recently witnessed a significant expansion in the use of electric arc smelting furnaces, due to the possibility of controlling operating conditions and achieving high production quality. However, it is considered a non-linear turbulent electrical load .They change rapidly with time , causing electrical disturbances that have a dangerous negative impact on the electrical distribution networks that feed them and their components. In this research, the disturbances in the quality of the electrical supply resulting from an electric arc furnace with a capacity of 21 MVA and a capacity of 40 tons of scrap metal were measured and analyzed. Using a programmed energy analyzer device (Chauvin Arnoux (CA) 8334B) according to the international standard specifications EN/IEC 61000 -3-3-2013, the network and oven model on which the tests were conducted was built using the Matlab/Simulink environment. Then simulated different operating states of electric arc furnace , the results showed that the disturbances values exceeded the internationally permissible values .this confirms that the compensation capacitors used are insufficient and do not treat the disturbances as required. Therefor, other feasible solutions have been proposed, such( STATCOM) which is considered one of the most important equipments that address most problems in the power quality ,It consists of (inverter)and a DC loop and a controller , it is connected to the system via interconnectiontransformers, But it is characterized by its high costs , and inability to determine the stability time and static error of the time response of the controller of STATCOM.

    2008
    The fuel cell is a complex system, in which several disciplinary fields are concerned: hydraulics, chemical, thermal and electric. In this paper, we present the hydraulic part of the model of a PEM fuel cell stack via the Bond Graph formalism. The developed model enables to simulate the pressure losses inside the fuel cell. Firstly the basis of Bond Graph modelling is recalled. Then, the structure of the model and its elements are described. Secondly, the model is exploited to study the effects of operating conditions on the pressure losses attached to the distribution of gases in the electrodes.

    2015 مجلة جامعة البعث
    The main aim of the extension of electrical cables is to transmit electric power between the components of electric power system, which include generating, distributing, transporting and investing the system with the best possible performance. In this paper, we will show the general principles which enable us to choose the suitable cable-section in accordance with the economic and technical feasibility. In this study, we develop two algorithms : the first algorithm takes into account the technical study, while the second concentrates on economic study and then the final section of the cable is selected as a result of both studies.

    2015 مجلة جامعة البعث
    Due to the lack of fossil fuels and its products quantities, obtaining difficulties, and its global and local high price. It has become necessary to look for other means and methods of providing electrical energy far from fossil resources or support the existing ones. The study is focused on renewable energy sources, especially solar energy (both thermal and photovoltaic), wind energy as well as biomass which are sufficiently available in the Syrian Arab Republic. Utilizing the renewable energy sources is the main focus of this study, in which the investment in the field of photovoltaic energy and economic efficiency will be reviewed and compared to generating electricity using diesel generators.

    مجلة جامعة البعث
    The research aims to study the effect of the distribution water on Proton Exchange membrane fuel cell (PEMFC), and the relationship of membrane thickness and the effects of changes in thickness depending on the amount of water contained within the membrane. The research also aims to change the effect of humidity on the effectiveness of the membrane proton through the diffusion coefficient and the coefficient of the flow electral osmotic. The research includes the study of humidity on the cell performance at constant temperature and its effect on the input interface. There are many parameters correlated with each other and with the mutual influence as the Humidity and the permeability of the membrane as well as its thickness. Therefore it can be calculated the resistance of the membrane depending on the amount of water contained within it and change depending on the thickness. Diffusivity and moisture will have a direct effect on the yield and performance of the cell, so you must work to drain excess amount of water generated within the membrane. Keywords: Fuel Cell Proton exchange me

    2017 مجلة جامعة البعث
    Providing an electricity for watering and irrigating agricultural areas, especially in areas away from residential communities, is costly in terms of providing the electrical power from the grid. The Syrian Arab Republic also has a high level of solar radiation. Therefore, the use of the PV system to secure the electric power of water pumps is one of the economic solutions, taking into account the gradual decrease in the prices of these systems during the current period, and contributes to the reduction of harmful emissions to the environment. The system consists of: a set of PV panels, an inverter (DC/AC), a water pump and a reservoir. In this paper, we present a system design of the photovoltaic pumping to provide electrical and economic comparison between two different energy supply systems: the first depends on the PV panels, and the second depending on the public grid. farm area study in the eastern countryside of Homs with the aim to supply water for irrigation and drinking.

    مجلة جامعة طرطوس
    Due to the lack of fossil fuels and its products quantities, obtaining difficulties, and its global and local high price. It has become necessary to look for other means and methods of providing electrical energy far from fossil resources or support the existing ones. The study is focused on renewable energy sources, especially solar energy (both thermal and photovoltaic), wind energy as well as biomass which are sufficiently available in the Syrian Arab Republic. Utilizing the renewable energy sources is the main focus of this study, in which the investment in the field of photovoltaic energy and economic efficiency will be reviewed and compared to generating electricity using diesel generators.

    2011
    Basic requirements for equipment of telecommunications related to their safety, long life and uninterruptible power systems in order to ensure the continuity of feeding either from a renewable energy source or diesel from the traditional system. In this paper, we will study and design an energy system based on renewable energy, to feed the communications equipment. Proposed energy system consisting of the following elements: photovoltaic’s cells, wind turbine, energy storage system (battery), and in addition to traditional energy system diesel generator. This study addresses several foundations, both rely on the meteorological information and status of battery used in this system. In this type of system, we get the following benefits: reducing the fuel consumption and reduce CO2 emissions as well as lower logistics costs.

    A Reversible (or Unitized) Fuel Cell is an electrochemical component which is able to operate by conception in two modes: in fuel cell mode (production of electricity and heat starting from hydrogen and oxygen) as well as in electrolyser mode (production of hydrogen and oxygen starting from electricity and even from heat in certain cases). Firstly, we present the operation principle and technological elements of a PEM RFC. Secondly, we study the quasi-steady behaviour of a PEM RFC through voltage-current curves. Thirdly, the dynamical behaviour is analyzed

    2011 مجلة جامعة البعث
    The basic element for an individual traffic signal is composed of three lights. This study has been doing on this principle We have been looking at the most important problems of the use of solar energy. We try to find some solutions that can be effective in terms of automation and use of its ability, where we were building an automated system to clean the solar panels.

    2007
    Les piles à combustible (PAC) à membrane échangeuse de protons (PEM) constituent une technologie prometteuse pour alimenter en électricité hors réseau de nombreuses applications. Ces PAC sont nécessairement modulaires : une pile à combustible opérationnelle est constituée d’un empilement de plusieurs cellules élémentaires à base tension, électriquement en série et en parallèle pour atteindre la puissance désirée. Pour étudier le comportement de telles associations, un modèle multi-physique de cellule PEM doit être développé. En particulier, les variations des paramètres des modèles avec la température et la pression doivent être connues aussi finement que possible. Cet article présente un modèle énergétique multiphysique d’une PAC PEM, prenant en compte les aspects thermodynamiques, électrochimique, électrique, hydraulique et thermique. Le formalisme graphique Bond Graph, bien adapté pour représenter la structure des interactions énergétiques au sein d’un système est mis à profit pour cette modélisation. En premier lieu, les bases de la représentation des interactions énergétiques par Bond Graph sont rappelées. Puis, l’élaboration du modèle est décrite, domaine après domaine, chaque phénomène étant décrit au plan énergétique en précisant les hypothèses. Dans la deuxième partie les potentialités du modèle sont illustrées notamment par la simulation d’associations de piles.

    2021
    Modular Multilevel Converter (MMC) system has many advantages over conventional voltage source converters and therefore they can play major role in Direct Current power transmission, micro grid, or renewable energy applications and recently it attracted attention to use in smart transformers. MMC’s distinctive topology offers many new features, it also offer a sophisticated topology to deal with high frequency requirements of generating a sinusoidal voltage waveform for smart transformers. In this work we will make a comparison between T-cell Submodule based MMC and HalfBridge Submodule based MMC when generating 1kHz voltage waveform as we will investigate capacitor voltages, AC voltage and current THD as generating high frequency sinusoidal voltage waveform is essential for the size of Smart Transformers. Simulation analysis has been done using MATLAB/Simulink and the results are verified.

    2021 IEEE Renewable Engineering Conference (IREC), International
    ration in the multi-level converter family. The value of these converters derives from their ability to overcome the drawbacks of conventional multi-level converters in terms of power and voltage levels. Since the modulation index is considered the main parameter for controlling the modular converters, this paper is devoted to discuss the effect of modulation index on the performance of three-phase modular multi-level converters in terms of output voltage, current amplitude and total harmonic distortion. Moreover, the subcapacitors voltage ripple and the circulating current amplitude have been also investigated. This research work investigates three converter models. The first model has four sub-modules in each arm, the second model has seven sub-modules in each arm, and the third model has ten sub-modules in each arm. All the details about modular multi-level converter performance is stated and validated using MATLAB – SIMULINK

    2011 مجلة جامعة البعث
    The study considers the possibility of applying rationalization of electrical power consumption rules for academic teaching institute lighting. In addition to emphasize that rationalization idea is not reducing the electrical bill cost, but the optimal use of electrical power. In this simple practical study of academic teaching institute lighting, the general regulations of electrical power consumption rationalization will be utilized, (such as: using power saving lighting equipments, utilizing the natural light as much as possible, and using photoelectric sensors to control the lighting equipments operation, which make it operate when it is necessary). As a result, the economical abundance resulted from applying the rationalization rules of electrical power consumption in the lighting field can be calculated. At the end of this study, the results were presented from the economical and practical point of view. Two solutions were suggested: either using an employee to watch the lighting equipments, or using motion sensitive and photoelectric sensors to control these equipments operation, in both cases there will be a good financial return for both government and consumers, reducing the loss, and proving that rationalization of electrical power consumption is a national duty.

    2022
    Doubly fed induction generators are one of the most important types used in wind turbines because they are easy to deal with changing wind speeds. These generator are driven by electronic converters where is installed between the stator of generator that connected to the electrical grid and the rotor, several converters ,such as traditional converter and matrix converter, have been used to drive this type of generators. The use of these converters is associated with several problems related to the appearance of distortions in voltage and current and oscillations in electromagnetic torque, in order to reduce these distortions and oscillations and to obtain pure voltage and current waves as much as possible to supply the electrical grid with electrical energy of high quality and efficiency, the multi- level converter which represent the latest used converters because of their unique properties and features as an alternative option to the traditional and matrix converters that have been used. In these research, the performance of the doubly fed induction generator was studied and analyzed when it is driven by a multi-level converter in both cases of sub-synchronous and super synchronous speed, where the wind generation system based on the use of the multi-level converter was modeled using MATLAB, the simulation was carried out, and analyze the total harmonic distortion for waves of voltage and current and the results were discussed for speed, stator and rotor currents, voltages of stator and rotor and show the active generated power curve and reactive power curve ,in addition to showing the electromagnetic torque curve and then compare with the cases in which it was used matrix converter and traditional converter where the results of the comparison showed that use of the multi-level converter led to a significant improvement in the performance of the system.

    2023
    Increasing the share of renewable energy in the national energy mix ranks high on the political agenda of many governments around the globe. Multi- and bilateral development banks support national governments in pursuing this objective and provide funding for renewable energy projects. The ultimate success and sustainability of the investment as well as the achievement of national renewable energy targets depend to a large extent on the quality, performance and safety of the financed energy system, For example: solar field. The five stages of evaluation, planning, installation, acceptance, and operations will be recognized. And then identify the quality infrastructure in this area and the importance of the PV plan certificate and a mechanism to obtain. The study concluded that the appropriate quality and safety standards should be taken into consideration when preparing the project, the process of bidding and selection, and ensuring the implementation of the solar project through responsible financial institutions, working groups on quality and safety issues in PV with the participation of the relevant stakeholders are recommended, and Training activities for different actors in the field should be developed considering international best practices for quality and safety.

    2024 مؤتمر الباحثين السوريين والمغتربين
    This research provides a detailed analysis of smart transformers, starting with an explanation of their basic concepts, the switch structures used within them, the applications of smart transformers, and the future challenges of using these transformers. The research also discusses the importance of improving an alternative to traditional low-frequency transformers, and also addresses the basic circuits that make up these transformers and the control strategies used.

    2021 مجلة جامعة حماة Journal of Hama University – vol. -No. - 2021
    This research aims to obtain the optimal configuration of the distribution networks, in order to obtain the lowest possible losses and improve the voltage levels at the network nodes, without affecting the power quality and reliability of the loads and the radial formation of the studied network in the distribution networks. Therefore, in this paper, the Newton-Raphson iterative method was used to solve the problem of network load flows, in order to choose the new configuration of the distribution network with or without distributed generation. In this paper, the genetic algorithm (GA) is used, through which the switches are identified in the studied distribution network and the optimal positioning of the distributed generation is determined.

    28th Electrical Power Distribution Conference, April 23-25, 2024, Zanjan, Iran
    n the high-voltage laboratories, engineers attach significant importance to generating standard Lightning Impulse (LI) waves while testing distribution transformers. The transformer windings with small inductance or large capacitance can lead to high-frequency resonances and excessive overshoot in the resulting LI voltage waveform. These outcomes impose substantial stress on the transformer insulation and increase the risk of breakdown. This paper focuses on the potential of incorporating series and parallel compensators with the transformer under test to achieve the desired standard waveform. Initially, a Frequency Response Analysis (FRA) measurement is conducted to derive the black box model of the transformer. Subsequently, the utilization of a parallel capacitor to dampen the oscillations and enhance the front time of the LI waveform is presented. Afterwards, the inability of Glaninger and Haefely Patented Overshoot (HPO) compensators to mitigate the excessive overshoot observed during testing of the Low Voltage (LV) winding is investigated. Finally, the necessary to readjust the parameters of the Impulse generator (IG) to achieve a waveform that closely resembles the standard one. Then, some compensators are utilized to correct the tail time and overshoot. The research aims to provide valuable insights into preventing high-frequency resonances, improving LI waveform characteristics, and ensuring the reliable performance of distribution transformers.
    المؤلفات

    المؤلفات

    2024

    2018 جامعة البعث

    2014 جامعة البعث

    2013 جامعة البعث

    2008 Toulouse university