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Öğe Architecture, Protocols, and Applications of the Internet of Medical Things (IoMT)(Engineering and Technology Publishing, 2022) Askar, N.A.; Habbal, A.; Mohammed, A.H.; Sajat, M.S.; Yusupov, Z.; Kodirov, D.The Internet of Things (IoT) refers to the interconnected framework of web-connected objects that can collect and transfer information over a remote network without requiring any human intervention. The rapid progression in the development of IoT-based devices and their expansion towards making the medical care facility financially more savvy, proactive, and customized, has given rise to the development of the "Internet of Medical Things (IoMT)" that are assumed to function proactively in all domains of the healthcare industry. Within this framework, the IoMT-based healthcare system delivers various advantages, such as quick and unfailing treatment, enhanced communication, cost minimization, etc., through the exploitation of several new technologies. For instance, machine learning has significantly helped with the exploitation of various healthcare systems; fog computing not only minimises the cost of communication but also provides low latency; blockchain delivers its users a much better way of protecting sensitive and confidential information and data they possess. In this survey, a comprehensive elaboration of the IoMT-based healthcare systems based on modern technologies was conducted. This article describes various techniques and solutions of IoMT healthcare systems in the context of emerging technologies, and the related future trends and applications for a better understanding of how IoMT can enhance the healthcare industry now and in future. © 2022 Journal of Communications and 2022 by the authors.Öğe Controlling and tracking the maximum active power point in a photovoltaic system connected to the grid using the fuzzy neural controller(Institute of Electrical and Electronics Engineers Inc., 2023) Yusupov, Z.; Yaghoubi, E.; Yaghoubi, E.In contemporary smart distribution microgrids, both AC and DC loads and sources are consistently accessible, often operating at varying voltage levels simultaneously. Consequently, the typical scenario in today's microgrids involves a hybrid microgrid setup, necessitating the integration of inverters to facilitate power sharing between the AC and DC sections. Hence, this paper introduces a solution for active power control within an integrated AC/DC microgrid incorporating decentralized photovoltaic sources. The proposed solution employs a fuzzy neural controller to manage power generation, including the complexities of tracking the maximum power point during partial shading conditions. This approach effectively addresses the challenges posed by the combined microgrid configuration. The simulation results provide clear evidence of the success of the proposed method in controlling the active power managed by the DC microgrid and transferring it to the AC section. © 2023 IEEE.Öğe The Effect of PEMFC on Power Grid Using Advanced Equilibrium Optimizer and Particle Swarm Optimisation for Voltage Sag Mitigation(Institute of Electrical and Electronics Engineers Inc., 2023) Khaleel, M.M.; Yusupov, Z.; Guneser, M.T.; Abulifa, A.A.; Ahmed, A.A.; Alsharif, A.Due to the integration of various distributed generation resources into power systems, in particular, the integration of proton exchange membrane fuel cell (PEMFC), the electrical power grid (EPG) becomes more comprehensive and has power quality (PQ) issues like voltage/current unbalance, harmonics, voltage sag, etc. The issue of voltage sag arises from sudden changes in the EPG operating conditions. In this paper, the Advanced Equilibrium Optimizer (AEO) and Particle Swarm Optimization (PSO) are proposed as solutions for EPG disturbance in partially voltage sag issues caused by three fault scenarios: single line-to-ground faults (SLGF), double line-to-ground faults (DLGF), and three line-to-ground faults (TLGF). Both of proposed controllers are set up by applying AEO and PSO, and their preponderances are demonstrated by comparison with a conventional PI controller. The simulink model of PEMFC-EPG interconnection system is carried out in MATLAB/Simulink environment. The results of PEMFC-EPG interconnection using AEO and PSO are impressive and persuasive in terms of the voltage sag elimination. © 2023 IEEE.Öğe Energy management and optimization of microgrid system using particle swarm optimization algorithm(American Institute of Physics Inc., 2022) Elweddad, M.; Guneser, M.T.; Yusupov, Z.An optimization model is proposed to manage a day-ahead optimal energy management strategy for economic operation of Microgrids. The model is based on a using particle swarm optimization algorithm (PSO) for scheduling four energy sources (grid, PV system, wind system, energy storage system) with 24 hours' time step, considering forecasted electrical demands, weather, and renewable energy generations. In this paper, the objective function is to minimize the cost of electricity generation and to manage delivering power from hybrid sources to the demand. The results showed that scheduling and controlling of different energy sources in efficient way reduce the total cost of power generation and ensure sustainable power flow. It is important to enhance the usage of solar and wind sources, optimize the operation of storage systems. © 2022 Author(s).Öğe Fault control of microgrid system: A case study of Karabuk University-Turkey(IOP Publishing Ltd, 2020) Yusupov, Z.; Almagrahi, N.; Tursunov, O.; Kodirov, D.; Almgarbj, H.A.; Toshpulatov, N.In this paper Karabuk University microgrid system is introduced and fault control of microgrid is analyzed. The microgrid system of Karabuk University campus consists of diesel generator, solar PV panels, energy storage unit, critical and non-critical loads. Simulation of microgrid in both grid-connected and isolated operation modes are conducted on MATLAB/Simulink. The fault control has been implemented in the microgrid system to effectively manage of power in the system. The system is effectively disconnecting the microgrid from main grid within a microsecond after fault conditions. The distributed energy sources have been supplying the energy to load based load profile settings. From the simulation results, the developed control mechanisms provide stable operation in the microgrid system. © Published under licence by IOP Publishing Ltd.Öğe Intelligent Processing Time Characteristics of the Flow of the Impulse Component of the Train Shunt Resistance(Springer Science and Business Media Deutschland GmbH, 2024) Sadikov, A.; Aripov, N.; Yusupov, Z.; Vaisov, O.The article discusses the results of studies of the temporal characteristics of the flow of the impulse component of the resistance of the train shunt of the rolling stock. The qualitative results of processing the experimental data of the distribution of the durations of emissions and the probabilities of the intervals between adjacent emissions of the resistance of the train shunt are presented. It is shown that they quantitatively characterize the stable character of the statistical properties of the impulse component of the train shunt resistance emissions in terms of time. To analyze the characteristics of a pulsed random process of changing the resistance of a shunt, the shape of which is close to the ?-function, a mathematical model has been developed using its representation in the form of an analog-to-digital transformation based on an exponential function. Statistical characteristics of the resistance of a train shunt have been obtained, allow considering its destabilizing effect on the operation of monitoring systems for the states of rail circuits. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.Öğe Mitigation of load side harmonic distortion in standalone photovoltaic based microgrid(EDP Sciences, 2021) Aljwary, A.; Yusupov, Z.; Toirov, O.; Shokirov, R.Photovoltaic (PV) system as one part of distributed energy resources is becoming an alternative for low and medium distribution network of microgrid. By the reason of a wide implementation of power electronic and non-linear loads, harmonics distortion is one of the main problems for the power systems. There are several filter types to mitigate the harmonics. The passive filter is distinguished by its simplicity and economical options from another filters. In this paper, the passive single tuned filter (STF) is used to minimize harmonics distortion in standalone PV based microgrid. A solar PV array is modelled as an ideal single diode model (ISDM) and used to supply electrical power to an AC load. The simulation results are executed on MATLAB/Simulink show that STF is effective in mitigating the voltage total harmonic distortion (VTHD) and the current total harmonic distortion (ITHD) with enhancing the output power quality. © The Authors.Öğe Model of Circuits of Anti-repeat Relays of Train Routes(Springer Science and Business Media Deutschland GmbH, 2024) Yusupov, Z.; Azizov, A.; Ametova, E.; Ubaydullaev, S.The use of electromagnetic relays in railway control systems is very problematic. The solution to this problem is based on graph theory, process modeling and the use of microelectronic devices. A multigraph of the Petri net has been developed and investigated for various modes of operation of anti-repeat relays. The schematic diagrams of the microelectronic unit are given. © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.Öğe Modeling and Control of Decentralized Microgrid Based on Renewable Energy and Electric Vehicle Charging Station(Springer Science and Business Media Deutschland GmbH, 2024) Yusupov, Z.; Almagrahi, N.; Yaghoubi, E.; Yaghoubi, E.; Habbal, A.; Kodirov, D.Energy scarcity, environmental pollution, and the exponential rise in demand for energy are all significant global problems. The integration of distributed energy resources (DER) into electric power systems (EPS) and the use of electric vehicles (EVs) due to low pollution has increased in recent decades. The operating reliability and efficiency of the power systems are affected when DERs and energy storage devices are integrated into a distribution network. In a different scenario, a vital step toward low-carbon mobility is the electrification of automobiles. To integrate the widespread adoption of electric vehicles into EPS, it is necessary to coordinate the combination of centralized and decentralized control of EPS at the EV grid infrastructure. In this paper, a microgrid (MG) with decentralized control of renewable energy and an EV charging station is designed and modeled for Karabuk University campus. In the proposed mathematical model, the Park transformer is applied based on injection current in the Point of Common Coupling (PCC) and using the PI controller to control active power. This technique can keep the frequency and power in both grid-connected and islanded modes, also significantly reducing the number of harmonics in the grid-connected mode. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.Öğe An Optimization Approaches and Control Strategies of Hydrogen Fuel Cell Systems in EDG-Integration Based on DVR Technology(International Information and Engineering Technology Association, 2024) Khaleel, M.; Yusupov, Z.; Alderoubi, N.; Habeeb, L.J.; Elmnifi, M.; Mohammed, A.; Majdi, H.S.Electrical Distribution Grid (EDG) will be required to further enhance PQ while also providing higher-efficiency electrical technology. The relationship between the elements of EDG and Hydrogen Fuel Cell Systems (HFCS) was thoroughly examined in this study. This investigation, emphasizes the controller techniques of DVR technology and HFCS interface, as well as the connected converter topology such as multi-input single-output dc-dc converters topology, voltage double boost converters topology, and high step-up coupled inductor converter topology, could contribute to decreasing the danger of EDG by limiting the consumption of fossil fuels for power-generation, reducing the emission of hazardous. Moreover, according to what the research discussed HFCS with EDG interfacing is based on DVR technology. The article delivers several novel contributions to the realm of electrical engineering and renewable energy integration. It presents a pioneering integration of hydrogen fuel cells with DVR technology to enhance power delivery reliability and efficiency within electrical distribution grids. This work introduces advanced optimization algorithms aimed at im-proving the operational efficiency, lifespan, and cost-effectiveness of hydrogen fuel cells. Furthermore, it develops robust control strategies for dynamic voltage restoration, crucial for maintaining stable voltage levels under variable loads. The article also includes detailed simulation models to provide empirical support for the proposed strategies and assesses both the environmental impacts and scalability aspects of the system. These innovative elements ensure that the article contributes significantly to the existing body of knowledge, providing practical solutions and theoretical insights that could influence future research and development in the integration of renewable energy technologies within electrical distribution systems. Copyright: ©2024 The authors. This article is published by IIETA.Öğe Real-time techno-economical operation of preserving microgrids via optimal NLMPC considering uncertainties(Elsevier B.V., 2024) Yaghoubi, E.; Yaghoubi, E.; Yusupov, Z.; Rahebi, J.In the modern era, managing optimal real-time control of microgrids during the operation phase has been a significant challenge, requiring careful consideration of both technical and economic factors. This paper introduces a framework for the real-time control of islanded microgrids using a preserving network. This structure incorporates various distributed generation sources, including rotating and non-rotating resources, along with energy storage systems. The optimization function within model predictive control (MPC) manages essential network parameters, such as frequency and voltage, while addressing real-time economic and technical objectives. To enhance precision and account for uncertainties in generation and consumption parameters, the integration of continuous power flow and the preserving network model is employed. This approach aims to create a model that closely mirrors real-world conditions, ensuring a more accurate representation of microgrid dynamics. The proposed structure demonstrates significant improvements in both technical and economic performance compared to Standard MPC and Adaptive MPC, highlighting its potential for more efficient islanded microgrid management. The proposed framework achieves notable reductions in total voltage deviation of 85.87% and 87.62% compared to Standard MPC and Adaptive MPC, respectively. Additionally, it delivers impressive enhancements in frequency deviation of 99.46% and 96.62% compared to Standard MPC and Adaptive MPC, respectively. Economically, the proposed framework significantly outperforms both, reducing costs by 39.29% compared to Standard MPC and by 28.12% compared to Adaptive MPC. © 2024 THE AUTHORSÖğe Short-term Load Forecasting in Grid-connected Microgrid(Institute of Electrical and Electronics Engineers Inc., 2019) Izzatillaev, J.; Yusupov, Z.The integration of distributed energy resources (DER) into main grid need to consider the influence of many factors. One of them is the determination of electric load in Microgrid. Creating a feasible and efficient Microgrid based on the predicted power load is more relevant. The paper analyzes the forecasting of the electric energy consumption in Microgrids, analyzes the area of applicability, advantages and disadvantages of short-term forecasting methods of power consumption. Two methods-Group Method of Data Handling (GMDH) and Artificial Neural Networks (ANN) are used to determine short-term load forecasting. © 2019 IEEE.Öğe Study on issues of uninterrupted power supply, energy-saving and improving the quality of electrical energy of water facilities(IOP Publishing Ltd, 2020) Toshpulatov, N.; Tursunov, O.; Kodirov, D.; Maksumkhanova, A.; Yusupov, Z.This paper analyses the results of studies of uninterrupted power supply, energy saving issues, problems of improving the quality of electrical energy of irrigation pumping stations and electrical consumers of water facilities. The current state of the power supply system is described, and the analysis of the existing situation is carried out. On the basis of comparison of theoretical calculations and practical measurements of the consumption of electrical energy, discrepancies in the results were determined. A solution was found to the problem of reducing the actual consumption in relation to the calculated ones. Recommendations are given for ensuring uninterrupted power supply, solving the issues of increasing the energy efficiency of the equipment in operation for energy conservation and saving electrical energy by improving quality indicators. © Published under licence by IOP Publishing Ltd.Öğe Technical challenges and optimization of superconducting magnetic energy storage in electrical power systems(Elsevier Ltd, 2023) Khaleel, M.; Yusupov, Z.; Nassar, Y.; El-khozondar, H.J.; Ahmed, A.; Alsharif, A.The main motivation for the study of superconducting magnetic energy storage (SMES) integrated into the electrical power system (EPS) is the electrical utilities' concern with eliminating Power Quality (PQ) issues and greenhouse gas emissions. This article aims to provide a thorough analysis of the SMES interface, which is crucial to the EPS. This article also discusses the development of SMES as a reliable energy storage system (ESS). Delivering outstanding performance to support the EPS in any upsetting scenario can help SMES achieve its goals. A few of the fascinating aspects of the application of SMES in this context are microgrids, transmission and distribution (T&D) grids, renewable energy sources (RES), and plug-in hybrid energy storage systems (HESS). However, power utilities must evaluate the effectiveness and enhance a better performance on PQ when presenting a highly efficient energy technology. This article examines the difficulties of integrating SMES into the electricity network as well as the performance effects of HESS and RES. Finally, by outlining the current state of knowledge and highlighting any gaps in the literature, the power protection strategies and difficulties for power networks using SMES are evaluated. © 2023 The Author(s)Öğe Towards Hydrogen Sector Investments for Achieving Sustainable Electricity Generation(Libyan Center for Solar Energy Research and Studies, 2024) Khaleel, M.; Yusupov, Z.; Guneser, M.T.; Nassar, Y.; El-Khozondar, H.; Ahmed, A.; Alsharif, A.Hydrogen constitutes an integral component within an expansive array of energy technologies poised to facilitate the nation’s transition towards achieving a net-zero state. In additional, this endeavor involves harnessing regional resources judiciously, thereby fostering equitable and sustainable growth. The strategic development and utilization of hydrogen technologies necessitate a nuanced approach, encompassing an assessment of diverse technologies spanning various sectors especially power sector. Such a meticulous strategy aims to forge the most efficacious, cost-effective, and sustainable pathways, underpinned by the discerning adoption of these technologies in the market. The article delves into the intricate relationship between hydrogen and fuel cell technologies, shedding light on their combined impact on the evolving landscape of electricity generation. A particular focus is placed on the integration of variable renewable energy sources, elucidating how hydrogen serves as a key enabler in optimizing the utilization of these fluctuating energy resources. In addition, the article encompasses various methods of hydrogen production, exploring their technological advancements and implications for achieving sustainable electricity generation. © 2024, Libyan Center for Solar Energy Research and Studies. All rights reserved.Öğe Towards Sustainable Renewable Energy(Pleiades Publishing, 2023) Khaleel, M.; Yusupov, Z.; Ahmed, A.; Alsharif, A.; Nassar, Y.; El-Khozondar, H.Abstract: The ongoing evolution of civilization is indelibly marked by our proficiency in harnessing energy beyond mere human and animal labor. The advent of successive industrial and agricultural revolutions has enabled a growing segment of the global populace to enjoy the comforts of heated and illuminated homes, the bountiful yields of fertilized and irrigated crops, the connectedness facilitated by technology, and the accessibility of far-reaching travel. These milestones of progress are driven by our ever-expanding ability to locate, extract, and utilize energy with ever-greater mastery. Advances in materials science hold the key to a sustainable future, characterized by clean energy generation, transmission, and distribution, the effective storage of electrical and chemical energy, enhanced energy efficiency, and more sophisticated energy management systems. © 2023, Allerton Press, Inc.Öğe Using of evaporative cooling systems in poultry farms(IOP Publishing Ltd, 2020) Anarbaev, A.; Zakhidov, R.; Tursunov, O.; Kodirov, D.; Vakhidov, U.; Khaliknazarov, U.; Yusupov, Z.This article is devoted to the development of promising low-power evaporative cooling systems in poultry farms. At the same time, the placement of elements of the system in determining the temperature, humidity and gas composition of the air in such indoor areas is determined by the parameters at which the most favorable conditions for the life of their bodies and their high productivity are created. The promising method of intensifying the process of heat and mass transfer between gaseous and liquid is considered. The article presents the structural and thermodynamic parameters of the developed evaporative cooler air. Create a layout of the plant shown efficiency and effectiveness of the cooling air. Preliminary methods of calculation thermodynamic parameters of this installation are presented for the conditions of the Republic of Uzbekistan and are more effective with comparison in widely used at present time I-d diagram. © Published under licence by IOP Publishing Ltd.
