2021 22nd International Middle East Power Systems Conference (MEPCON)最新文献

A Cost-Benefit Analysis of Optimal Active and Reactive Power Compensators and Voltage Conditioners Allocation in a Real Egyptian Distribution System 埃及实际配电系统有功、无功补偿器和电压调压器优化配置的成本效益分析

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686207

A. Mahmoud, M. Ezzat, A. Abdelaziz, S. Aleem

{"title":"A Cost-Benefit Analysis of Optimal Active and Reactive Power Compensators and Voltage Conditioners Allocation in a Real Egyptian Distribution System","authors":"A. Mahmoud, M. Ezzat, A. Abdelaziz, S. Aleem","doi":"10.1109/MEPCON50283.2021.9686207","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686207","url":null,"abstract":"Improving the performance of distribution networks is an important goal for power system operators. Many technologies can make this required improvement, such as network reconfiguration or reinforcement, supplying the grid with active and reactive power compensators such as distributed power generation units (DGs), shunt capacitor banks (CBs), or installation of voltage conditioners such as voltage regulators (VRs). In this regard, a new methodology called Archimedes optimization algorithm (AOA) is employed in this work for the optimal allocation of DGs, CBs, and VRs in a real Egyptian distribution system within a multi-objective optimization problem framework. The cost-benefit analysis of the allocation problem includes the investment and running costs of the DGs, CBs, and VRs used, the benefits resulting from the reduction of power loss and purchased power from the utility, deviation of voltage from the allowable limits, voltage stability, and loading capacity minimization. Different loading scenarios are considered in this study - light, intermediate, and peak levels of demand. The requirements of the Egyptian electricity distribution code and the updated Egyptian electricity energy rate have been considered in solving the problem. The realized simulation results validated the efficiency of the proposed strategy for cost-effectively solving the allocation problem while complying with the considered linear and nonlinear constraints.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115739585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Assessing the Effect of Shading on Centralized and Decentralized Large Scale Stand-alone PV Power Plant Feeding Industrial Area in Egypt 埃及集中式和分散式大型独立光伏电站供电工业区遮阳效果评估

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686228

Muhammed S. Mubarak, A. Elgebaly, S. M. Allam

{"title":"Assessing the Effect of Shading on Centralized and Decentralized Large Scale Stand-alone PV Power Plant Feeding Industrial Area in Egypt","authors":"Muhammed S. Mubarak, A. Elgebaly, S. M. Allam","doi":"10.1109/MEPCON50283.2021.9686228","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686228","url":null,"abstract":"This paper studies the effect of shading on a centralized and decentralized designs of a large-scale (1MW) stand-alone photovoltaic (PV) system feeding actual loads in Egypt. The effect of various levels of shading on such large PV power plant characteristics is investigated. So, in this research, many considerations are considered in the design of centralized and decentralized PV power stations, such as the irradiation change, site, and load. The paper studies these factors and their effect on the power produced from centralized and decentralized photovoltaic power stations and storage systems. In this study, strategies and methods are proposed for dividing the centralized photovoltaic power station into decentralized groups. The benefits of these strategies and methods are the reduction of both losses and stresses on the storage system and improvement the performance of the station in general. The performance analysis of both the centralized and decentralized PV power plants is investigated in this paper. The performances of both the centralized and decentralized PV power plants are simulated by MATLAB/SIMULINK package. The impact of the partial shadowing on the PV power plants is also investigated by MATLAB.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117126560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fast Frequency Support at a Wind Energy System Using Time-Varying Inertia and Droop Controls based on Globally Optimal $H_{infty}$ Control Design 基于全局最优$H_{infty}$控制设计的时变惯性和下垂控制风能系统的快速频率支持

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686214

Hoang-Trung Ngo, E. Kamal, B. Marinescu

{"title":"Fast Frequency Support at a Wind Energy System Using Time-Varying Inertia and Droop Controls based on Globally Optimal $H_{infty}$ Control Design","authors":"Hoang-Trung Ngo, E. Kamal, B. Marinescu","doi":"10.1109/MEPCON50283.2021.9686214","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686214","url":null,"abstract":"The aim of this paper is to find an efficient strategy to provide local services for wind energy systems (i.e., regulate DC line voltage, active power, reactive power), frequency stability and support in both frequency deviation (using droop control) and rate of change of frequency (RoCoF) from generating units when it is used in an interconnected power as well as isolated ones. In order to achieve the research objectives, different strategies were studied. It's about the modeling of Permanent Magnet Synchronous Generator (PMSG) based on variable speed wind system connected grid using back to back converters and systems control. The aim of the present paper is that of analysing the possible contribution of variable speed wind generating units in frequency support, by means of the definition of dedicated control strategies to be implemented at power electronic level. Then, the paper also proposes the integration of inertial and droop frequency controller in order to define a control strategy capable of emulating the frequency response behaviour of a traditional generating unit. Sufficient conditions are derived for robust stabilization in the sense of Lyapunov stability and are formulated in Linear Matrix Inequalities (LMIs). The performances and limits of the proposed controller are evaluated by means of dedicated simulations.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114160974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Arch-Flux Switching Generators for Vortex Bladeless Wind Turbines 用于无涡叶片风力涡轮机的电弧通量开关发电机

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686251

Haytham A. Abdelgalil, D. Osheba, S. Tahoun

引用次数: 0

Dynamic Behavior Assessment of Permanent Magnet Synchronous Motors Under Finite Set Model Predictive Controllers and Field-Oriented Control 有限集预测控制器和磁场定向控制下永磁同步电机动态行为评估

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686258

Mahmoud Ali Khames, Abdelsalam A. Ahmed, A. Omara, E. Rashad

{"title":"Dynamic Behavior Assessment of Permanent Magnet Synchronous Motors Under Finite Set Model Predictive Controllers and Field-Oriented Control","authors":"Mahmoud Ali Khames, Abdelsalam A. Ahmed, A. Omara, E. Rashad","doi":"10.1109/MEPCON50283.2021.9686258","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686258","url":null,"abstract":"This paper presents an impartial comparison of the dynamic behavior of permanent magnet synchronous motors (PMSM) under three control techniques i.e., model predictive current control (MPCC), model predictive direct speed control (MPDSC) and field-oriented control (FOC). In MPCC, the voltage vectors applied to the inverter are determined by minimizing a cost function comprising the error in currents; whereas, in MPDSC, the voltage vectors applied to the inverter are determined according to minimization of cost function which includes speed and current errors. In MPCC, PI controller is used to regulate the speed, whereas in the MPDSC, there are no PI controllers. When the FOC is applied, modulated voltage vectors are determined according to three PI controllers for speed and current control. Most crucial implementation issues, which affects the dynamic performance of PMSMs, are addressed during the comparison between three control techniques. These issues include delay time, switching frequency and parameters mismatch. The delay time, due to the large number of calculations, is compensated by predicting the state variables two sampling intervals ahead. Switching frequency is included in the objective function to reduce switching losses. The effect of delay time and switching frequency is related to MPCC and MPDSC; meanwhile parameters mismatch is associated with all control methods. The dynamic behaviors are assessed via simulation results at different load conditions. The final evaluation was performed in terms of rising time, settling time, total harmonic distortion and average switching frequency.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129554037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Performance Enhancement of Wave Energy Converters Integrated with DC Grids Using Energy Storage Systems 利用储能系统提高与直流电网集成的波浪能变换器的性能

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686294

Mohamed G. Hussien, A. M. Elkholy, D. Mansour, Mahmoud M. Akl, M. Numair, Ismail A. Soliman

{"title":"Performance Enhancement of Wave Energy Converters Integrated with DC Grids Using Energy Storage Systems","authors":"Mohamed G. Hussien, A. M. Elkholy, D. Mansour, Mahmoud M. Akl, M. Numair, Ismail A. Soliman","doi":"10.1109/MEPCON50283.2021.9686294","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686294","url":null,"abstract":"Wave energy has a great potential as a renewable energy source. However, the intermittent nature of wave profile causes fluctuations in the output power extracted from wave energy converters. This paper proposes to smooth the output power extracted from wave energy using battery energy storage system and to integrate this power with DC systems. First, oscillating water column used to extract wave energy is described. It is based on reference model 3, which is referred as wave power buoy. Then, the design considerations of wave power buoy with permanent magnet linear generator are discussed and the Egyptian western coastline is taken as a case study. The ocean wave simulation is performed using the WecSim toolbox developed in MATLAB/SIMULINK considering the real irregular wave action. The output power from the linear generator is demonstrated. After that, the wave energy power generation with battery energy storage system is described. The system performance is evaluated through various simulation results. Finally, supercapacitor is used with battery for further enhancement in the performance of the system.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130584867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Assessment of Photovoltaic Penetration Impact on Voltage Profile for Distribution Networks in Egypt 光伏渗透对埃及配电网电压分布影响的评估

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686195

M. Kamh, A. Mostafa, K. Youssef, M. Abdelrahman

{"title":"Assessment of Photovoltaic Penetration Impact on Voltage Profile for Distribution Networks in Egypt","authors":"M. Kamh, A. Mostafa, K. Youssef, M. Abdelrahman","doi":"10.1109/MEPCON50283.2021.9686195","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686195","url":null,"abstract":"Small Scale photovoltaic (ssPV) rooftop installations are increasingly penetrating the low voltage (LV) networks across the Egyptian utilities. This is driven by the continuous cost reductions of the ssPV technology and the governmental policies and regulations to encourage the reliance on renewable resources. Widespread installation of rooftop ssPV in LV networks poses several technical challenges that should be addressed during interconnection study stage, via (a) feeder hosting capacity, (b) power factor, and (c) voltage control within safe operating limits especially during the morning hours with low load conditions. Studying the impact of connecting ssPV network should be applied before ssPV station structure to maintain the technical parameters within acceptable ranges. This paper proposes an effective tool to determine the maximum ssPV capacity allowed at various locations in the LV grids considering acceptable voltage and power factor. The tool provides heuristic curves for quick decision which is useful for network operator. Case studies of actual feeders are used to verify the accuracy of the tool. The tool is adaptable to accommodate different technical requirements of the Egyptian code for connecting ssPV systems to low voltage distribution network (ssPV code) and Electricity Distribution Code (EDC). The tool used DIgSILENT PowerFactory software and DPL programming language.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127792936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal Planning of Microgrids Including Charging Stations and Renewable Energy Sources 包含充电站和可再生能源的微电网优化规划

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686196

A. Eid, M. Ibrahim, S. Kamel

{"title":"Optimal Planning of Microgrids Including Charging Stations and Renewable Energy Sources","authors":"A. Eid, M. Ibrahim, S. Kamel","doi":"10.1109/MEPCON50283.2021.9686196","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686196","url":null,"abstract":"Electric vehicles are an important way to reduce greenhouse gas emissions. The impact of ozone pollutants and support for large-scale renewables are reduced by electric vehicles and the dependence on fossil fuels. As a decarbonizer tool and an auxiliary service provider, charging-discharging coordination between electric vehicles and the power grid is essential. This paper analyzes and optimizes a microgrid equipped with an Electric Vehicles charging station (EVCS) and distributed generation (DG) with a minimum loss objective. The assumed capacity of the station is 900 EVCSs of 12 kWh each. Electric Vehicles (EVs) enter the charging station at a random state of charge where they are charged under constant power mode. The EVs are connected until they are fully charged and then disconnected. The fleet of EVs enters the station every four hours throughout the day. The 33-bus radial distribution system is taken as a test system representing the microgrid with demand uncertainty. A renewable source is optimally allocated into the microgrid to minimize the total power loss using the newly published Hunger Games Search (HGS) optimization algorithm. The optimized DG operates in two case studies of unity power factor (UPF) and optimal power factor (OPF). The obtained results during the 24-hr operation of the system emphasize the efficient methodology of the proposed planning of the microgrid and the competent capability of the HGS algorithm to minimize the power loss of the microgrid and other performance parameters. Moreover, the operation of the DG with OPF achieves better outcomes than that with UPF during the complete 24-hr demand.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126287105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The New Technology in Photovoltaics 光伏新技术

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/mepcon50283.2021.9686282

I. Samak

引用次数: 0

Optimum Spacing Between Parallel Transmission Lines in Egyptian Grid Based on Metaheuristic Optimization Mechanisms 基于元启发式优化机制的埃及电网并联线路间距优化

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686296

A. Taha, Ahdab Elmorshdy, A. Emam, M. Samy

引用次数: 1