2021 22nd International Middle East Power Systems Conference (MEPCON)最新文献_第10页

Assessment of PV String Optimizer Circuit Versus String and Central Inverters During Partial Shading Conditions 在部分遮阳条件下光伏串优化电路与串和中央逆变器的评估

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686290

Marwa Abdelkareem Yagoub, A. Elserougi, T. H. Abdelhamid

{"title":"Assessment of PV String Optimizer Circuit Versus String and Central Inverters During Partial Shading Conditions","authors":"Marwa Abdelkareem Yagoub, A. Elserougi, T. H. Abdelhamid","doi":"10.1109/MEPCON50283.2021.9686290","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686290","url":null,"abstract":"Partial Shading (PS) of PV strings has become an issue of great importance as it causes a significant reduction of the generated PV power. There are numerous techniques that have been developed to mitigate the PS effects such as string inverter configuration and micro-inverter configuration beside maximum power point tracking (MPPT) methods, but most of these techniques are costly or complex. So, there is a demand for a cost-effective and reliable technique to overcome some of the inherent limitations of these techniques. String Optimizer Circuit (SOC) approach along with Global MPPT (GMPPT) the algorithm can be used with one central inverter to enhance the extracted PV power during PS conditions. The SOC approach provides approximately the same power level that extracted from the string inverter approach but with a lower number of semiconductor devices which has a positive effect on the system cost. In this paper, an assessment study is presented to show the effectiveness and the advantages of the SOC-based PV system over the conventional central and string inverter-based systems. MATLAB/SIMULINK software package is used for the assessment. The simulation results are presented to show the effectiveness of the SOC along with the GMMPT algorithm in enhancing the extracted PV power.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"118 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":"130046450","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

High voltage and Electrostatic Technologies for control of Infection 控制感染的高压和静电技术

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/mepcon50283.2021.9686268

Akira Mizuno

引用次数: 0

Ground/Phase Detection of Power Transformers’ Faults with Matrix-Based Fault Representation 基于矩阵故障表示的电力变压器接地/相位故障检测

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686259

Amira M. Dahman, R. A. Sehiemy, Mohamed I. Zaki, A. El-Ela

引用次数: 1

Robust Control of Isolated Microgrid based on Decentralized Fixed Structure H${infty}$ Loop Shaping 基于分散固定结构H ${infty}$回路整形的隔离微电网鲁棒控制

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686283

A. Mohamed, M. Bahgat, A. Abdel-Ghany

引用次数: 1

Model Predictive Control for Three-Phase Split-Source Inverter-Based Virtual Synchronous Generator 基于三相分源逆变器的虚拟同步发电机模型预测控制

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686236

Walaa M. Abou-Hussein, S. Dabour, M. Hamad, E. Rashad

{"title":"Model Predictive Control for Three-Phase Split-Source Inverter-Based Virtual Synchronous Generator","authors":"Walaa M. Abou-Hussein, S. Dabour, M. Hamad, E. Rashad","doi":"10.1109/MEPCON50283.2021.9686236","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686236","url":null,"abstract":"Realizing local voltage regulation and power-sharing of an islanded AC microgrid can be achieved by conventional control that employs outer-loop droop control and inner-loop cascaded linear control. However, it has limited dynamic response, complex structure, and a rapid rate of change of frequency. In addition, the use of two-stage DC-DC-AC converters for interfacing the renewable energy sources and the microgrid reduces the system efficiency. The split-source inverter (SSI) introduces an alternative single-stage solution for the DC-DC-AC conversion. This paper proposes a virtual synchronous generator (VSG) control algorithm based on model predictive control (MPC) for a three-phase SSI. A finite-set MPC (FS-MPC) is employed to achieve a simple control structure, fast dynamic response, higher stability, and improved current limitation in the inner control loop. A VSG control algorithm without a phase-locked loop is utilized in this paper to achieve active-power-sharing and inertia emulation in the outer control loop. The analysis and modeling of the proposed technique are presented in detail. The simulation results verified the merits of the analysis and the theoretical finding.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"9 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":"131897834","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

Power System Stability Improvement by Employing Strong Action Controller Acting as Virtual Inertia Controller 采用强作用控制器作为虚拟惯性控制器提高电力系统稳定性

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686209

A. Yakout, Hossam Kotb, W. Sabry

引用次数: 1

Evaluation of Supercapacitor Control Techniques for 50 MW Benban Solar Park Plant with Grid-Connection During Disturbance 扰动条件下50mw本板并网太阳能公园电站超级电容器控制技术评价

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686255

I. Hamdan, A. Maghraby, Omar Noureldeen

{"title":"Evaluation of Supercapacitor Control Techniques for 50 MW Benban Solar Park Plant with Grid-Connection During Disturbance","authors":"I. Hamdan, A. Maghraby, Omar Noureldeen","doi":"10.1109/MEPCON50283.2021.9686255","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686255","url":null,"abstract":"This paper presents an evaluation of control techniques for the performance enhancement of 50 MW Benban Solar Park (BSP) plant with grid-connection using supercapacitor (SC). The proposed technique is a sector of BSP which is located in Upper Egypt in Aswan with a capacity of 50 MW and analyzed during three phase fault and variable irradiation. The effect of SC as a type of energy storage device (ESD) on photovoltaic (PV) system appears during the abnormal conditions. SC is responsible for maintaining constant output active power by charging when there is excess in the output power of PV and discharging when there is a lack in the output power. Power and voltage control strategies of SC are developed for continuously charging and discharging to do its objective. The control systems are also shown, which are used to maintain DC link voltage stable and manage the power transit between the SC and the grid. The control of SC is performed using the voltage control and power control for the purpose of evaluation in terms of DC link voltage, stability, active and reactive power. The 50 MW Beban PV system is validated by simulation results via Matlab/Simulink platform under various operating conditions. The studied model is used to simulate the entire proposed system with SC, as well as its control techniques. A comparative study between the voltage control and power control is investigated. The study focuses on applying these control strategies with SC especially Benban PV system. Results are compared between the behaviors of the analyzed system in cases of without and with power or voltage control techniques of SC. Also, both control strategies for SC are tested on system. The simulation results show that utilizing SC improves system stability significantly. With satisfactory values, numerical results demonstrate the validity of the suggested technique.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"721 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":"133437876","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

A Review of Power Management Strategies for Grid Frequency Regulation Using Electric Vehicles 基于电动汽车的电网频率调节电源管理策略综述

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686203

Mohamed Y. Metwly, M. Hamad, A. Abdel-Khalik, Hussein Eldesouki

引用次数: 1

A Shared Capacitor-Based H-Bridge Modular Multilevel DC-DC Converter 基于共享电容的h桥模块化多电平DC-DC变换器

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686206

Yousef Nazih, A. Hossam-Eldin, A. Elserougi

{"title":"A Shared Capacitor-Based H-Bridge Modular Multilevel DC-DC Converter","authors":"Yousef Nazih, A. Hossam-Eldin, A. Elserougi","doi":"10.1109/MEPCON50283.2021.9686206","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686206","url":null,"abstract":"Conventional Modular Multilevel Converter (MMC) is considered a promising candidate in the industry in high-voltage and high-power applications. However, in DC-DC operation, the capacitor voltages suffer a great deal of unbalance which results in a failure in the DC operation. In literature, a shared capacitor approach was presented for dual MMC-based AC drive systems to ensure limited capacitor voltages ripples during low-/zero-frequency operation. In the shared capacitor approach, every two adjacent submodules (SMs) in opposite legs share a common capacitor with a special arrangement of switching devices. In this paper, the shared capacitor approach has been adopted to produce a modular DC-DC converter, which is intended to be used in HVDC applications such as supplying a DC load or connecting DC-grids of different voltage levels. The proposed converter is a single-stage transformer-less converter, which consists of two legs and is characterized by a low number of very diminished capacitors in the combined SMs. Also, the proposed converter offers low current stresses and bidirectional power flow capability. The proposed architecture illustration and its control algorithm are provided in detail. Simulation results are provided to validate the performance of the proposed converter.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"5 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":"116951362","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

Design of a Fuzzy Logic Controller for DC Converter of a Stand-Alone PV System Based on Maximum Power Point Tracking 基于最大功率点跟踪的单机光伏系统直流变换器模糊控制器设计

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686239

Fatema A. Mohammed, M. Bahgat, S. Elmasry, S. Sharaf

引用次数: 0