European Journal of Electrical Engineering最新文献_第5页

Iron Loss Quantification in the Aim of the Estimation of Eddy Currents in Clamping Devices 铁损量化在箝位装置涡流估计中的应用

European Journal of Electrical Engineering Pub Date : 2021-12-31 DOI: 10.18280/ejee.230608

K. Darques, A. Tounzi, A. Benabou, S. Shihab, J. Korecki, W. Boughanmi, D. Laloy

引用次数: 0

Forecasting of Electricity Demand by Hybrid ANN-PSO under Shadow of the COVID-19 Pandemic 基于混合ANN-PSO的新冠肺炎疫情下电力需求预测

European Journal of Electrical Engineering Pub Date : 2021-12-31 DOI: 10.18280/ejee.230602

M. Rahmoune, S. Chettih

{"title":"Forecasting of Electricity Demand by Hybrid ANN-PSO under Shadow of the COVID-19 Pandemic","authors":"M. Rahmoune, S. Chettih","doi":"10.18280/ejee.230602","DOIUrl":"https://doi.org/10.18280/ejee.230602","url":null,"abstract":"Here in the research paper, we did not use smart methods to predict the future but rather to show the impact of the pandemic, we used the hybrid method using the PSO-ANN algorithm to demonstrate the impact of COVID-19 on electricity consumption and to demonstrate that we used two basic steps. The first step is to demonstrate that the hybrid method is effective for prediction. We showed that the prediction for 2019 was good, and that was before the onset of COVID-19. As for the second step, we applied the same hybrid algorithm after the emergence of COVID-19, i.e. for 2020, to note the difference between the prediction and the current pregnancy, which represents the impact of this epidemic, and this prediction in the short term. A short-term role in the operation of a power system in terms of achieving an economical electrical output and avoiding losses or outages. We've collected four consecutive years of data that is downloaded every quarter-hour of the day. Electricity consumption in Algeria is used as an input to the PSO-ANN learning algorithm. The results of the PSO-ANN pregnancy prediction algorithm have better accuracy than the ANN prediction. In the future but with the emergence of a pandemic that has had a clear difference and represents economic losses in the field of electricity, the epidemic should be viewed as a short-term variable to reduce the level of energy loss and generation cost.","PeriodicalId":340029,"journal":{"name":"European Journal of Electrical Engineering","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132640396","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

An Active Fault-Tolerant Control Strategy for Current Sensors Failure for Induction Motor Drives Using a Single Observer for Currents Estimation and Axes Transformation 基于单观测器的感应电机电流传感器故障主动容错控制策略

European Journal of Electrical Engineering Pub Date : 2021-12-31 DOI: 10.18280/ejee.230606

Y. Azzoug, R. Pusca, M. Sahraoui, A. Ammar, T. Ameid, R. Romary, A. Cardoso

{"title":"An Active Fault-Tolerant Control Strategy for Current Sensors Failure for Induction Motor Drives Using a Single Observer for Currents Estimation and Axes Transformation","authors":"Y. Azzoug, R. Pusca, M. Sahraoui, A. Ammar, T. Ameid, R. Romary, A. Cardoso","doi":"10.18280/ejee.230606","DOIUrl":"https://doi.org/10.18280/ejee.230606","url":null,"abstract":"This paper proposes a fault-tolerant control technique against current sensors failure in direct torque controlled induction motors drives, based on a new modification of Luenberger observer for currents estimation and axes transformation for vector rotation. Several important aspects are covered in the proposed algorithm, such as the detection of sensors failure, the isolation of faulty sensors, and the reconfiguration of the control system by a correct estimation. A logic circuit ensures fault detection by analyzing the residual signal between the measured and estimated quantities, while a single observer performs the task of estimating the line currents. In addition, a decision logic circuit isolates the erroneous signal and simultaneously selects the appropriate estimated current signal. An axes transformation ensures rotation from (a,b) to (α,β), which keeps a low-cost control using only two current sensors. The proposed scheme is tested on MATLAB/Simulink environment and experimentally validated in a laboratory prototype mainly containing a dS1104 card and 4 kW induction motor.","PeriodicalId":340029,"journal":{"name":"European Journal of Electrical Engineering","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122163318","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

Impact of the Integration of a STATCOM Controlled by LQG/H2 Regulator in an Energy System LQG/H2调节器控制的STATCOM集成对能源系统的影响

European Journal of Electrical Engineering Pub Date : 2021-10-31 DOI: 10.18280/ejee.230502

M. Mekki, H. M. Boulouiha, A. Allali, M. Denai

引用次数: 0

Stochastic Modelling and Stability Analysis of Large-Scale Wind Power Generation System with Dynamic Loads 具有动态负荷的大型风力发电系统随机建模与稳定性分析

European Journal of Electrical Engineering Pub Date : 2021-10-31 DOI: 10.18280/ejee.230503

J. C. Attachie, C. K. Amuzuvi, Godwin Diamenu

{"title":"Stochastic Modelling and Stability Analysis of Large-Scale Wind Power Generation System with Dynamic Loads","authors":"J. C. Attachie, C. K. Amuzuvi, Godwin Diamenu","doi":"10.18280/ejee.230503","DOIUrl":"https://doi.org/10.18280/ejee.230503","url":null,"abstract":"As a result of dwindling fossil fuel reserves and the negative impact of greenhouse gases (GHGs) on the environment, it is important that the search for a power grid that will comprise of only variable renewable energy (VRE) generation sources such as wind or solar energy which is available everywhere for free is given much attention. The main challenge associated with these sources of energy is their variability and random nature. It is as a result of instability introduced by the VRE generation sources, that is why there is a strict control measures put in place by the regulators as to how much VRE generation sources can feed into the power grid in the case of its integration into an existing power grid. It becomes imperative to consider implications for grid stability and reliability when considering a power grid that will consist of VRE generation only. Eigenvalue approach was used to analysed the performance of anticipated large-scale VRE grid to ascertain its behaviour. Eigenvalue approach is one of the methods to examine the stability of a power system’s dynamic performance. The results indicated that it is possible to attain the necessary stability provided the assumptions made during the modelling stage is revised to improve upon the model.","PeriodicalId":340029,"journal":{"name":"European Journal of Electrical Engineering","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126532998","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

Sensorless Direct Torque Control of PMSM Based on Fuzzy Sliding Mode Control with Full Order Sliding Mode Observer 基于全阶滑模观测器模糊滑模控制的永磁同步电机无传感器直接转矩控制

European Journal of Electrical Engineering Pub Date : 2021-10-31 DOI: 10.18280/ejee.230507

Idriss Baba Arbi, Abdelkrim Allag

引用次数: 0

Power Quality Improvement Using Dynamic Voltage Restorer on Grid-Connected Wind Energy System 利用动态电压恢复器改善并网风电系统电能质量

European Journal of Electrical Engineering Pub Date : 2021-10-31 DOI: 10.18280/ejee.230506

M. Yadav, P. Sujatha, P. B. Kumar

{"title":"Power Quality Improvement Using Dynamic Voltage Restorer on Grid-Connected Wind Energy System","authors":"M. Yadav, P. Sujatha, P. B. Kumar","doi":"10.18280/ejee.230506","DOIUrl":"https://doi.org/10.18280/ejee.230506","url":null,"abstract":"Reduction of fossil fuels and increasing technology made importance of wind generation as renewable energy sources. With increasing number of wind farms fed to grid increases grid fault issues due to various wind systems disconnected from grid during grid faults. To get better grid operation, wind farms are probable to be carried during disturbance related to grid faults extensively known as fault ride through capability. In proposed system a fault ride through method in wind farm management system connected to grid is investigated in term of critical clearing time. This paper examines the use of dynamic voltage restorer on the enhancement of fixed-speed wind generator systems. The controller capability performance, drive performance, and cost factor are considered. Simulation is performed using MATLAB Simulink for constant speed wind generators with closed-loop controller-based DVR are tested. The constant speed drive called synchronous generator-based wind system feed to an infinite bus system. Simulation results show the wind system with DVR has better fault ride-through capability other compensated voltages and is more efficient in minimizing voltage fluctuations called sag/swell and wind generator’s speed. Additionally, DVR aids wind generators to maintain voltage sag/swell with the grid limits requirements with economical as compared to other voltage compensating systems.","PeriodicalId":340029,"journal":{"name":"European Journal of Electrical Engineering","volume":"45 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133005086","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

MPPT for Photovoltaic System Using Adaptive Fuzzy Backstepping Sliding Mode Control 基于自适应模糊反步滑模控制的光伏系统最大功率跟踪控制

European Journal of Electrical Engineering Pub Date : 2021-10-31 DOI: 10.18280/ejee.230505

Attoui Hadjira, Behih Khalissa, Bouchama Ziyad, Ziyad Nadjat

{"title":"MPPT for Photovoltaic System Using Adaptive Fuzzy Backstepping Sliding Mode Control","authors":"Attoui Hadjira, Behih Khalissa, Bouchama Ziyad, Ziyad Nadjat","doi":"10.18280/ejee.230505","DOIUrl":"https://doi.org/10.18280/ejee.230505","url":null,"abstract":"This paper presents an intelligent monitoring control strategy for a maximum power point tracking (MPPT) in photovoltaic (PV) system applications. The design of the proposed nonlinear adaptive control law (AFBSMC) is formulated based on adaptive fuzzy systems, backstepping approach and sliding mode technique to maximize the power output of a PV system under various sets of conditions and parameters variation. Unlike many conventional controllers, the main contribution of the present paper provides a soften control law which useful to handle parameters variations due to the different operating conditions occurring on the PV system and makes the controller easy to implement. This aim is achieved using fuzzy systems in an adaptive scheme to approximate the switching control function of the global control law while backstepping sliding mode control compensates uncertainties and external disturbances. The analytical stability proof of the closed-loop system is corroborated via Lyapunov synthesis while numerical simulations of different operating conditions of a PV system is conducted to validate the effectiveness of the proposed approach.","PeriodicalId":340029,"journal":{"name":"European Journal of Electrical Engineering","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116582424","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

Effects of VA Rating on the Fault Diagnosis of Power Transformer Using SFRA Test 电压额定值对电力变压器SFRA故障诊断的影响

European Journal of Electrical Engineering Pub Date : 2021-10-31 DOI: 10.18280/ejee.230504

Khalid H. Ibrahim, Nourhan R. Korany, S. Saleh

{"title":"Effects of VA Rating on the Fault Diagnosis of Power Transformer Using SFRA Test","authors":"Khalid H. Ibrahim, Nourhan R. Korany, S. Saleh","doi":"10.18280/ejee.230504","DOIUrl":"https://doi.org/10.18280/ejee.230504","url":null,"abstract":"The electric power transformer is an essential part of an electrical power system since it is used to step up or down voltage levels to maintain the system performance as well as possible. Frequency response analysis (FRA) is one of the most widely used techniques for detecting various types of mechanical damage in transformers. The equivalent circuit of the transformer will be represented by a complex network of R, L, and C elements in the FRA technique. For transformer faults diagnosis, various calculation techniques and diagnostic techniques may be used, such as acoustic emission analysis, thermal images of electromagnetic radiation, transformer temperature, and humidity analysis. SFRA test is one of these techniques that could be used to determine the fault type based on its response over a wide frequency range. The main challenge of the SFRA test is that the functional interpretation requirement for this test is not universally accepted Also statistical features are defined for this SFRA response to be used in fault detection and classification. In this paper, the effect of the transformer rating on the fault diagnosis techniques using SFRA is tested. Also, the effect of the transformer VA rating on the statistical parameters and the classification rules of fault diagnosis is discussed. Finally, the features used in fault diagnosis are ranked according to its independence of the transformer rating resulting in a more accurate matching fault diagnosis technique.","PeriodicalId":340029,"journal":{"name":"European Journal of Electrical Engineering","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122827743","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

Dynamic Impact Analysis of Integrating a 6 MW Solar Photovoltaic Power Plant into Medium Voltage Distribution Network 6mw太阳能光伏电站并入中压配电网的动态影响分析

European Journal of Electrical Engineering Pub Date : 2021-10-31 DOI: 10.18280/ejee.230508

Abbas F.G. Mohmmedali, M. Hamouda, Ghaitaoui Touhami

引用次数: 1