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2017 International Conference on Electromechanical and Power Systems (SIELMEN)最新文献

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A comprehensive solution for optimal capacitor allocation problem in real distribution networks 实际配电网中电容器最优配置问题的综合解决方案
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123388
B. Neagu, O. Ivanov, M. Gavrilas
{"title":"A comprehensive solution for optimal capacitor allocation problem in real distribution networks","authors":"B. Neagu, O. Ivanov, M. Gavrilas","doi":"10.1109/SIELMEN.2017.8123388","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123388","url":null,"abstract":"The optimal capacitor allocation in electricity distribution networks (EDN) plays a meaningful role in voltage profile improvement, power factor amelioration and also power losses minimization. This work presents two comprehensive optimization algorithms based on metaheuristics as a comparison to solve the capacitor allocation problem in modern distribution networks. Thus, the problem of optimal capacitor allocation for active power losses minimization was solved using the bat and fireworks algorithms. In order to validate and demonstrate the feasibility of the proposed approach, a modern distribution network was tested and the results obtained in MATLAB implementations of the two proposed metaheuristics were compared. The results confirm that the proposed optimization algorithms show a good efficiency and robustness having high performance both for minimizing the EDN power losses and voltage profile improvement.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114176323","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
Locus diagrams of net magnetic field vector of dual winding induction motor 双绕组感应电动机净磁场矢量轨迹图
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123320
A. Çanakoğlu, M. M. Tezcan, A. Yetgin, Banş Cevher, M. Turan
{"title":"Locus diagrams of net magnetic field vector of dual winding induction motor","authors":"A. Çanakoğlu, M. M. Tezcan, A. Yetgin, Banş Cevher, M. Turan","doi":"10.1109/SIELMEN.2017.8123320","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123320","url":null,"abstract":"The rotating magnetic field is the major concept of induction and synchronous machines. For a three phase induction motor, locus of net magnetic field of single winding stator is a circle which radius is equal to 3/2 times of one phase's magnetic field peak value. This paper introduces the locus diagram the net magnetic field of Dual Winding Induction Motor (DWIM). One of the stator winding is fed from a different frequency while the other one is fed with nominal frequencies. Hence the different rotating magnetic field speeds (synchronous speeds) are obtained by individual windings. Locus diagrams are obtained with different frequencies. This diagrams obtained for different frequencies are same as petaled flower that is a famous mathematical curve in polar coordinates. The total rotating magnetic field variations obtained in this way will affect the torque values obtained at the motor shaft.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123621855","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
Experimental results of photovoltaic emulator systems 光伏仿真系统的实验结果
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123329
M. A. Abdourraziq, S. Abdourraziq, M. Maaroufi, Mouhayedine Tlemcani, C. Darab
{"title":"Experimental results of photovoltaic emulator systems","authors":"M. A. Abdourraziq, S. Abdourraziq, M. Maaroufi, Mouhayedine Tlemcani, C. Darab","doi":"10.1109/SIELMEN.2017.8123329","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123329","url":null,"abstract":"In this paper, we present experimental results of photovoltaic (PV) emulator systems implemented in a low-cost microcontroller. The insufficiency of space for installation of real PV panels and the high costs of the commercial emulators require of alternative systems which allow the generation of the characteristic curves of the solar panels. Irradiance and temperature can be set on the emulator to emulate the behavior of a PV panel. The implementation methodology and their effects on the PV output are performed and discussed in detail for each scheme of PV emulator system.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125071408","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
Evaluation of the minimum operating duration of cogeneration units that could ensure economic viability 评估能确保经济可行性的热电联产机组的最短运行时间
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123384
Valentin Arion, Corina Chelmenciuc, Călin Negură
{"title":"Evaluation of the minimum operating duration of cogeneration units that could ensure economic viability","authors":"Valentin Arion, Corina Chelmenciuc, Călin Negură","doi":"10.1109/SIELMEN.2017.8123384","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123384","url":null,"abstract":"This article touches upon the issue of determining the annual minimum economic operating period of cogeneration units, based on internal combustion engines. The calculation of this important indicator for cogeneration plants was performed for the installed power capacities in the range of 5-3000 kWe under local conditions and is based on the analysis of expenditures and revenues. The developed economic model reflects possible dynamics of evolutive parameters during the lifetime of installations. It has been proven that micro-cogeneration is practically at the limit of economic attractiveness. Promoting cogeneration in the country requires the launch of a support scheme.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127775910","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
Considerations regarding infrared thermal stresses monitoring of electrical equipment 关于电气设备红外热应力监测的考虑
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123307
A. Dragomir, M. Adam, Mihai Andruçcâ, A. Munteanu, Elvis Boghiu
{"title":"Considerations regarding infrared thermal stresses monitoring of electrical equipment","authors":"A. Dragomir, M. Adam, Mihai Andruçcâ, A. Munteanu, Elvis Boghiu","doi":"10.1109/SIELMEN.2017.8123307","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123307","url":null,"abstract":"The paper aim is to analyze the way in which the electrical load influences the infrared thermal images of the thermal stresses of electrical equipment determined by using infrared thermography devices. In order to obtain a reliable result of the infrared investigations several conditions must be accomplished, such as good definition of the correction parameters and choosing the optimal environmental conditions to perform the investigation. The paper presents the way in which it is corrected the electrical load of the collector busbar system after the thermal image was captured in order to determine its thermal stresses. On an experimental setup there were performed several attempts to determine the thermal stress of a portion from a HV (high voltage) collector busbar system which has two ramifications with the same electrical loads.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126798485","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: 8
High-efficiency electronic transformer for powering of individual consumers from the medium voltage grid 为个人用户从中压电网供电的高效电子变压器
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123386
V. Berzan, Iurie Ermurachi
{"title":"High-efficiency electronic transformer for powering of individual consumers from the medium voltage grid","authors":"V. Berzan, Iurie Ermurachi","doi":"10.1109/SIELMEN.2017.8123386","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123386","url":null,"abstract":"The proposed and argued concept for realization includes the possibility of realizing an average of the medium voltage transformer, for example, with 10 / 0.22 kV parameters. Equipment with these parameters is known as Solid State Transformer (SST), which provides direct connection of consumers to the medium voltage power supply. The output frequency of these transformers is equal to the industrial frequency of 50 Hz. The implementation of such equipment can lead to a change in the paradigm of supplying energy to individual consumers and a noticeable reduction in losses in distribution networks. We will mention another feature of this equipment — the two-way power exchange capacity. As a result, it is possible to simply connect the renewable energy sources to the centralized network, for example the so-called \"micro-networks\". The innovation of the proposed solution is to reduce the number of AC / AC transformation steps compared to known solutions as well as to simplify the equipment topology. This ensures a reduction in manufacturing costs and losses. Traditional transformers have specific mass indices per unit of nominal power about 20 times higher than SST transformers, and the cost of the installed unit power of the TMG transformers overtakes that of SST transformers by about 1.8–3.0 times.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"361 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115926480","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
Cloud system for diabetic data analysis 糖尿病数据分析云系统
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123364
L. Nita
{"title":"Cloud system for diabetic data analysis","authors":"L. Nita","doi":"10.1109/SIELMEN.2017.8123364","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123364","url":null,"abstract":"The paper presents a web application which helps the diabetes patients and clinicians to analyze the patient evolution and improve the diabetes treatment. The system reads the blood glucose values from cloud where are uploaded by the patient mobile application. In this way both patient and clinician can share the patient data and it is no longer necessary the patient to visit the hospital.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130927257","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
Manufacturing and clinically testing embedded electrodes in knitted textiles for neurorehabilitation 神经康复用针织织物嵌入式电极的制造和临床试验
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123294
M. Poboroniuc, D. Irimia, Ioana-Corina Poboroniuc, A. Curteza, L. Macovei, Viorica Cretu, B. Ignat, M. Buzdugan
{"title":"Manufacturing and clinically testing embedded electrodes in knitted textiles for neurorehabilitation","authors":"M. Poboroniuc, D. Irimia, Ioana-Corina Poboroniuc, A. Curteza, L. Macovei, Viorica Cretu, B. Ignat, M. Buzdugan","doi":"10.1109/SIELMEN.2017.8123294","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123294","url":null,"abstract":"Functional Electrical Stimulation (FES) aims to induce programmed exercises in paralyzed limbs of people who suffered a stroke, in order to improve their rehabilitation process. Nowadays, surface pre-gelled transcutaneous electrodes are used to provide electrical pulses to the nerves which induce contractions to the targeted muscles. This paper presents a new type of electrodes which are embedded in knitted textiles which are easy to wear and to produce the same required muscles contractions. Their effectiveness has been clinically tested and the results show a good compliance with the patient's needs.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130037367","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
The quality of online courses in the students perception 学生对网络课程质量的看法
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123346
Ghencea Cristina, Todos Petru, Vîrlan Petru
{"title":"The quality of online courses in the students perception","authors":"Ghencea Cristina, Todos Petru, Vîrlan Petru","doi":"10.1109/SIELMEN.2017.8123346","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123346","url":null,"abstract":"Ensuring the quality of online learning in higher education institutions is a growing concern in recent years. While several studies have focused on the perception of the quality of online education by academic staff and administrators, this research is based on student perceptions. This study used qualitative methods to investigate the perceptions of students from the Technical University of Moldova on the quality of online courses based on their own online learning experiences. A survey was conducted with students taking part in online courses on the university platform and their perceptions about online courses, their positive and negative experiences were examined. Factors contributing to these experiences have also been identified. Findings can be used by teachers to understand students' perceptions about the quality of online courses and, ultimately, to improve their online training practices.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128914973","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
Photovoltaic pump system design for small irrigation 小型灌溉光伏泵系统设计
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123339
Ion Sobor
{"title":"Photovoltaic pump system design for small irrigation","authors":"Ion Sobor","doi":"10.1109/SIELMEN.2017.8123339","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123339","url":null,"abstract":"A method of PV pump system calculation for small irrigation is presented. The solar radiation calculation was performed with PVGIS software. The numerical example contains pump flow rates, pumped water volumes (daily, monthly and for all irrigation period)","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125251315","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: 4
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