2021 22nd International Middle East Power Systems Conference (MEPCON)最新文献_第2页

Optimization-Based Design of SVC Wide-Area Damping Controller for Power System Stability Enhancement 基于优化设计的SVC广域阻尼控制器增强电力系统稳定性

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686293

M. M. Radwan, A. Elgebaly, A. Azmy, Gamal E. M. Ali

{"title":"Optimization-Based Design of SVC Wide-Area Damping Controller for Power System Stability Enhancement","authors":"M. M. Radwan, A. Elgebaly, A. Azmy, Gamal E. M. Ali","doi":"10.1109/MEPCON50283.2021.9686293","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686293","url":null,"abstract":"This paper proposes a systematic approach for the design of wide-area damping controller for static VAR compensator (SVC). The proposed approach is developed in the form of a two-stage optimization problem. In the first stage, the problem of identifying the optimal feedback signal of the controller is solved, while the second stage is concerned with finding the optimal controller parameters. The optimal feedback signal is considered as a weighted summation of multiple signals that have the same type. The weights are determined optimally, where two signal selection approaches are considered for problem formulation. The two selected approaches are the geometric approach, and the residues approach. In the second stage, a multi-objective optimization problem is formulated to obtain the desired performance of the closed loop system. Both optimization stages are solved using Self-adaptive Multi-population Elitist Jaya Algorithm (SAMPE-JAYA). The proposed methodology is tested on the Western System Coordinating Council (WSCC) 3-machine, 9-bus system. Both modal analysis and nonlinear simulations have been carried out to confirm the effectiveness of the proposed design methodology.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"11 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":"130721853","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

Improved Cost Function Definition for Fixed Switching Frequency FCS-MPC with SVPWM 基于SVPWM的固定开关频率FCS-MPC成本函数的改进定义

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686235

Abualkasim Bakeer, M. Alhasheem, A. Chub

{"title":"Improved Cost Function Definition for Fixed Switching Frequency FCS-MPC with SVPWM","authors":"Abualkasim Bakeer, M. Alhasheem, A. Chub","doi":"10.1109/MEPCON50283.2021.9686235","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686235","url":null,"abstract":"The disadvantage of finite control set-model pre-dictive control (FCS- MPC) is that the switching frequency is variable and relies on the sampling time and operating point. This paper describes how to implement the fixed switching frequency functionality with FCS-MPC. This can be achieved by calculating the dwell times and selecting the optimal two active vectors for the next sampling interval, which have a significant impact on FCS- MPC performance during transient and steady -state conditions, and their values are determined using various mathematical models. Two cost functions are compared under the same conditions to verify their effect on the instantaneous values of the dwell times, and therefore on the FCS-MPC performance. This study considers two-level voltage source inverter for uninterruptible power supply (UPS) applications. The results obtained in MATLAB/Simulink reveal that tracking the voltage while ignoring its derivative results in low power quality. Including the derivative term can reduce the total harmonic distortion (THD) without a significant computational burden at the same switching frequency.","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":"128307563","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

A Proposed Active Flux Based Sensorless Control of Cage-Rotor Synchronous Reluctance Motor 基于主动磁链的笼形转子同步磁阻电机无传感器控制

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686220

M. Mamdouh, Sara M. Ismaeel, S. M. Allam, E. Rashad

引用次数: 1

An improved Perturb and Observe Based MPPT Method and Power Stabilization for Grid Connected PV System 一种改进的基于摄动和观测的MPPT方法及并网光伏系统的功率稳定

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686213

Maha M. Hassan, G. El-Saady, Elnobi A. Ibrahim, Mostafa A. Merazy

引用次数: 0

Optimal Distribution Networks Reconfiguration for Loss Reduction Via Black Widow Optimizer 基于黑寡妇优化器的配电网络优化配置

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686257

Hany S. E. Mansour, B. E. Elnaghi, M. Abd-Alwahab, M. Ismail

{"title":"Optimal Distribution Networks Reconfiguration for Loss Reduction Via Black Widow Optimizer","authors":"Hany S. E. Mansour, B. E. Elnaghi, M. Abd-Alwahab, M. Ismail","doi":"10.1109/MEPCON50283.2021.9686257","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686257","url":null,"abstract":"In distribution systems, applying the network reconfiguration (NR) technique can cause losses reduction, reliability enrichment, voltage profile improvement, and some other economic benefits. In this paper, the NR technique is developed as an optimization problem. The main aim is to determine the optimum configuration of the system which attains the objective function with realization the operational constraints. The black widow optimizer (BWO) is a novel stochastic optimization approach that is suggested for solving this problem. The objective function is formulated to achieve the maximum annual economic revenue that results from the reduction in energy loss. In addition, the backward/forward sweep method is utilized for the power flow solutions. The suggested approach is applied on two test networks; IEEE 33 and 69-node. The attained findings are gained via the Matlab programming environment. They revealed that the suggested approach is efficient and able to achieve the maximum annual economic revenue. Finally, the superiority of the introduced BWO algorithm is also confirmed by comparing its findings with other optimization techniques.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"7 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":"132096390","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

Modeling and Control Of Stand-Alone Photovoltaic System Based On Split-Source Inverter 基于分源逆变器的单机光伏系统建模与控制

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686249

Amr A. Abd-Elaziz, S. Dabour, M. Elmorshedy, E. Rashad

{"title":"Modeling and Control Of Stand-Alone Photovoltaic System Based On Split-Source Inverter","authors":"Amr A. Abd-Elaziz, S. Dabour, M. Elmorshedy, E. Rashad","doi":"10.1109/MEPCON50283.2021.9686249","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686249","url":null,"abstract":"Stand-alone photovoltaic (PV) systems have been used in remote electrification for decades due to their low infrastructure cost and clean energy source. However, their dependency on environmental conditions is a concerning issue. Therefore, backup energy storage is required along with a Maximum Power Point Tracking technique (MPPT). A dc-dc converter is usually used to implement MPPT before the inversion stage resulting in two-stage architecture. Meanwhile, single-stage conversion systems offer superior privileges in reducing the overall system's complexity, size, and cost. Among the single-stage boosting topologies, Split-Source Inverter (SSI) has been offered as an option with some advantages over the commonly used Z-source Inverter (ZSI). This paper presents step-by-step design procedures for a stand-alone PV system, including SSI and a Battery Storage System (BSS). Moreover, the small-signal model of the proposed system is analyzed to develop a robust control with superior dynamic characteristics. Finally, the control scheme is analyzed and simulated using MATLAB/Simulink.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"44 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":"130799740","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

Economical Design of a Renewable Power Station Joined With an Atmospheric Water Generator for Remote Areas Using Monte Carlo Simulation 基于蒙特卡罗模拟的偏远地区常压水机可再生电站经济性设计

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686202

Abdullah A. Elfar, S. Nabil, A. Samahi, A. Hussien

引用次数: 0

Optimal Enhancement of Voltage Stability in Microgrids 微电网电压稳定性的优化增强

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686295

Haya Hesham, R. Swief, Nourhan M. Elbehairy, M. Ezzat

引用次数: 0

Voltage Sag/Swell Detection Based on Decoupled Stationary Reference Frame PLL in DVR 基于解耦固定参考帧锁相环的DVR电压跌落/膨胀检测

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686301

Zeinab Elkady, N. Abdel-Rahim, A. Mansour, F. Bendary

{"title":"Voltage Sag/Swell Detection Based on Decoupled Stationary Reference Frame PLL in DVR","authors":"Zeinab Elkady, N. Abdel-Rahim, A. Mansour, F. Bendary","doi":"10.1109/MEPCON50283.2021.9686301","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686301","url":null,"abstract":"The voltage detection process is a basic task for the control system in the Dynamic Voltage Restorer (DVR). This detection has great importance because it is responsible for calculating the reference voltage and consequently the compensating voltage values. The stationary reference frame Phase Locked Loop (αβ-PLL) is widely used in three-phase grid-connected power converters because of its simple implementation and accurate estimation of the phase angle of the grid. The αβ-PLL works excellent in the case of ideal grid conditions without unbalance, DC offset, or any grid disturbance. However, it is not a good solution in the presence of unbalanced grid voltages. Decoupled stationary reference frame (Dαβ-PLL) overcomes the limitations of αβ-PLL by decoupling the positive and the negative sequences of the grid voltage. In this proposed study, the Dαβ-PLL is implemented as a voltage detection method applied in the control system of the DVR. The control system combined a feedforward control signal and a closed-loop feedback control signal. The Proportion Integral (PI) controller is implemented in the dq synchronous rotating reference frame. The system is simulated using MATLAB/Simulink. The results show that the Daß-PLL success in synchronizing with the grid voltage even if in the case of unbalance and superior to the αβ-PLL.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"31 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":"115918484","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

Over-Current Protection in Transmission Systems Using Analog and Digital Relays - Case Study and Comparison 使用模拟和数字继电器的传输系统中的过流保护-案例研究和比较

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686273

Mohamed I. Awaad, Zinab E. Afifi

{"title":"Over-Current Protection in Transmission Systems Using Analog and Digital Relays - Case Study and Comparison","authors":"Mohamed I. Awaad, Zinab E. Afifi","doi":"10.1109/MEPCON50283.2021.9686273","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686273","url":null,"abstract":"This paper focuses on studying a complete comparison between analog and digital overcurrent relays. Analog term is given to the first generation of the electromechanical relays whereas digital term is associated with the up-to-dated relays. Digital relays are presently used for secured, dependable and efficient operation of power systems. In power systems, overcurrent protection is essentially required against short circuit faults. The parameters of overcurrent relays are critical and sensitive as incorrect settings of them can cause improper tripping leading to a big problem. Accordingly, these parameters must be tested in order to validate the relay performance subjected to different fault cases. Thus, a radial power system with different fault conditions is taken as a case study using both analog and digital relays individually. The whole proposed system is designed, implemented and simulated using MATLAB program software. The most suitable overcurrent relay adequate with radial power systems is based on time definite characteristics. The overall model is then simulated twice to analyze, study and differentiate the performance of both digital and analog relays when subjected to short circuit faults. Finally, A brief comparison is presented between the analog and digital overcurrent relays showing the features and benefits of digital overcurrent relays over the analog relays.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"35 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":"124284959","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