International Journal of Electrical Engineering and Computer Science最新文献_第3页

Nonlinear Modelling, Dynamic Performances and control of an Electrical Syringe Pump Using a Linear Actuator 基于线性执行器的电动注射泵非线性建模、动态性能及控制

International Journal of Electrical Engineering and Computer Science Pub Date : 2023-07-07 DOI: 10.37394/232027.2023.5.7

I. Mahmoud, A. Khedher

{"title":"Nonlinear Modelling, Dynamic Performances and control of an Electrical Syringe Pump Using a Linear Actuator","authors":"I. Mahmoud, A. Khedher","doi":"10.37394/232027.2023.5.7","DOIUrl":"https://doi.org/10.37394/232027.2023.5.7","url":null,"abstract":"This article discusses the non-linear improved modelling approach, dynamic performances with and without saturation and closed loop control of an electrical syringe pump using a linear actuator. This work is intended for the mathematical characterization and setting equation of LSRM including the effect of magnetic nonlinearities. The work is beginning by the modelling of the inductance variation versus current. This variation is analytically described using Fourier series and the polynomial functions are used to express the nonlinear variation of its coefficients versus current. The second step is reserved to the prediction of the dynamic performances, taking into account the saturation phenomenon. Finally, the linear stepper motors movement is characterized by a highly oscillatory translation, which is troublesome for the positional accuracy and the speed constant such as depend by many industrial applications such as the syringe pump. Thus, in order to attenuate the amplitudes of these oscillations and guarantee the positioning of the actuator without errors, solutions exploiting closed-loop control techniques are proposed in this paper for the purpose of improve the actuator performances.","PeriodicalId":145183,"journal":{"name":"International Journal of Electrical Engineering and Computer Science","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114518776","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

Design of Variable Structure Fuzzy Power System Stabilizer in Multimachine System 多机系统变结构模糊电力系统稳定器设计

International Journal of Electrical Engineering and Computer Science Pub Date : 2023-06-06 DOI: 10.37394/232027.2023.5.6

T. H. Elmenfy, Samah Abdelsalam

引用次数: 0

A Proposed Fault Diagnostics Technique for Induction Motor Stator Winding 一种异步电动机定子绕组故障诊断方法

International Journal of Electrical Engineering and Computer Science Pub Date : 2023-05-12 DOI: 10.37394/232027.2023.5.5

M. El-Sebah, F. Khater

引用次数: 0

Novel Pumping System based on Micro-Hydro Turbine and Centrifugal Pump coupled using EVT Induction Machine. Application in Rural Area Irrigation 基于EVT感应电机的微型水轮机与离心泵耦合泵送系统。在农村灌溉中的应用

International Journal of Electrical Engineering and Computer Science Pub Date : 2023-05-08 DOI: 10.37394/232027.2023.5.4

M. Cendoya, S. Verne, P. Battaiotto

{"title":"Novel Pumping System based on Micro-Hydro Turbine and Centrifugal Pump coupled using EVT Induction Machine. Application in Rural Area Irrigation","authors":"M. Cendoya, S. Verne, P. Battaiotto","doi":"10.37394/232027.2023.5.4","DOIUrl":"https://doi.org/10.37394/232027.2023.5.4","url":null,"abstract":"In this article, a topology for energy conversion oriented to water pumping for irrigation in remote areas is proposed. A micro-hydraulic turbine working at fixed speed, in a \"run-off-river\" configuration, drives a centrifugal pump through a variable electric transmission (EVT). An EVT based on induction machines was selected, with the stator directly connected to a weak AC grid but the internal rotor fed by a variable frequency drive, allowing an adjustable pump speed. The grid supplies a base power for residential consumption, while the hydro turbine increases the available power for irrigation and thus augmenting productivity of the land uphill and beyond the vicinity of the watercourse. The grid also provides an assistance function, absorbing/delivering a reduced amount of power in case the hydraulic resource is excessive/insufficient for the requested water pumping. As the turbine delivery is constant, the water pumping requirement establishes the power exchanged between turbine, AC grid and pump. For this reason, an analysis to quantify the power flow in the system components for different pump speeds has been carried out. The system modeling is described and computer simulations, using a specific pump speed profile, are presented to validate the performed theoretical analysis.","PeriodicalId":145183,"journal":{"name":"International Journal of Electrical Engineering and Computer Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131348549","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

PV System with Battery Storage Using Bidirectional DC-DC Converter 采用双向DC-DC变换器的电池储能光伏系统

International Journal of Electrical Engineering and Computer Science Pub Date : 2023-05-04 DOI: 10.37394/232027.2023.5.3

A. Alazrag, L. Sbita

{"title":"PV System with Battery Storage Using Bidirectional DC-DC Converter","authors":"A. Alazrag, L. Sbita","doi":"10.37394/232027.2023.5.3","DOIUrl":"https://doi.org/10.37394/232027.2023.5.3","url":null,"abstract":"With the increase in demand for generating power using renewable energy sources, energy storage and interfacing the energy storage device with the load has become a major challenge. Energy storage using batteries is most suitable for renewable energy sources such as solar, wind etc. A bi-directional DC-DC converter provides the required bidirectional power flow for battery charging and discharging mode. The duty cycle of the converter controls charging and discharging based on the state of charge of the battery and direction of the current. In this paper, a nonisolated bi-directional DC-DC converter is designed and simulated for energy storage in the battery and interfacing it with the DC grid. The power extracted from the solar panel during the daytime is used to charge the batteries through the DC-DC converter operating in buck mode and when solar power is unavailable, the battery discharges to supply power to DC load through the converter operating in boost mode. Solar arrays connected through a DC bus to a load. Due to the instantaneous changes of solar irradiance and temperature, maximum power point tracking (MPPT) is integrated in the inverter control. The technique of maximum power point tracking (MPPT) is used in photovoltaic systems to extract the maximum power. The most popular MPPT techniques are reviewed and studied, such as: Perturb and Observe, Increment of Conductance and control based on fuzzy logic (LF). The simulation is done in matlab/simulink and results are presented.","PeriodicalId":145183,"journal":{"name":"International Journal of Electrical Engineering and Computer Science","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117262349","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

I–V characteristics of 5,14-dihydro-5,7,12,14-tetraazapentacene by Zinc 锌催化5,14-二氢-5,7,12,14-四氮五烯的I-V特性

International Journal of Electrical Engineering and Computer Science Pub Date : 2023-04-25 DOI: 10.37394/232027.2023.5.2

Hassan Ghalami Bavil Olyaee, Seyed Alireza Mousavi Shirazi

引用次数: 0

Electrodynamic Withstand of Power Transformers to Short-Circuit Currents 电力变压器对短路电流的电动力承受能力

International Journal of Electrical Engineering and Computer Science Pub Date : 2023-04-10 DOI: 10.37394/232027.2023.5.1

引用次数: 1

Electric Vehicle Infrastructure – Concepts and Challenges for Greece 电动汽车基础设施-希腊的概念和挑战

International Journal of Electrical Engineering and Computer Science Pub Date : 2022-12-31 DOI: 10.37394/232027.2022.4.16

C. Drosos, A. Chatzopoulos, M. Papoutsidakis, Eleni Simeonaki

{"title":"Electric Vehicle Infrastructure – Concepts and Challenges for Greece","authors":"C. Drosos, A. Chatzopoulos, M. Papoutsidakis, Eleni Simeonaki","doi":"10.37394/232027.2022.4.16","DOIUrl":"https://doi.org/10.37394/232027.2022.4.16","url":null,"abstract":"Electric Vehicles (EVs) represent a self-evident solution to environmental issues. Particularly in urban areas, the inhabitants must cope with increasing air pollution from industry and traffic. Promoting the electrification of individual transport can be part of the solution not only to slow down climate change but also to improve the quality of life of city dwellers. Athens has one of the highest emission rates in Europe due to traffic. The Greek Government published the National Plan for Energy and Climate in late 2019. A key message of this plan is that by 2030, one in three vehicles sold in Greece should be equipped with an electric drive. Additionally, Renewable Energy Sources (RES) are about to be promoted, which shall lead to a more environmentally friendly electricity mix (29.2 % share of RES in 2020, aiming for 61 % share of RES in 2030). This is necessary for EVs to achieve a reasonably well-to-wheel CO2 and NOx balance, not only a reasonable tank-to-wheel balance. Government subsidies are intended to create incentives to buy an electric vehicle. Including tax benefits, these subsidies can support the purchase of an electric vehicle for up to 10,000 €. Considering the comparatively low purchasing power in Europe and the lacking Charging Infrastructure, this is an ambitious target. Declining prices for EVs and charging facilities also enable countries with lower GDP per capita to electrify their mobility. This paper’s purpose is to examine whether Greece’s above objective of transport electrification is achievable and in addition to highlighting the strategies and methods that must be utilized to electrify Greece’s private transport. Therefore, the methodology followed includes the calculation of the minimum number of Public Charging Points (PCPs) required and subsequent analysis of pioneer countries regarding EV Infrastructure that Greece should be adapt to electrify its private transport appropriately. Concluding this paper's results show, that Greece's objective is achievable.","PeriodicalId":145183,"journal":{"name":"International Journal of Electrical Engineering and Computer Science","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121099508","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

Speed Control of DC Series Motor PV System via Improved Harmony Search Algorithm 基于改进和谐搜索算法的直流串联电机光伏系统速度控制

International Journal of Electrical Engineering and Computer Science Pub Date : 2022-12-31 DOI: 10.37394/232027.2022.4.13

E. Ali

引用次数: 1

Coil Parameter Analysis in Wireless Electric Vehicle Charging 无线电动汽车充电线圈参数分析

International Journal of Electrical Engineering and Computer Science Pub Date : 2022-12-31 DOI: 10.37394/232027.2022.4.15

Kshitij Ghimire

{"title":"Coil Parameter Analysis in Wireless Electric Vehicle Charging","authors":"Kshitij Ghimire","doi":"10.37394/232027.2022.4.15","DOIUrl":"https://doi.org/10.37394/232027.2022.4.15","url":null,"abstract":"The hassle of using plug-in charging for electric vehicles (EVs) such as connecting charger to the port of vehicles, risk of getting electrocuted during rain, dirty and oily charging cable etc. can be eliminated using wireless/induction power transfer (IPT). It can be made smart and automated. Hence, IPT can be considered the future of EV charging. However, the technology is just emerging and there are a lot of limitations at present. The major problems are less efficiency caused by coil misalignment and air gap, and the electro-magnetic field generated around the coils which possesses greater risk for human health. These can be improved by selecting the types of coils and shields which produce maximum magnetic flux between the coils whereas reduce the flux outside the coils. In this research, the strength of magnetic fields produced by various types of coils (circular, square and hexagonal) were simulated in Ansys Maxwell 3D to understand their features and to know which coil is the best for high power transfer efficiency. Similarly, the effects of using ferrite and aluminum shields for leakage reduction, by varying their thickness, were studied. Finally, the leakage flux values were simulated at very high currents to understand their behavior in such conditions.","PeriodicalId":145183,"journal":{"name":"International Journal of Electrical Engineering and Computer Science","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126066754","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