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

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Optimization of a method to evaluate the fundamental frequency in real time 优化了一种实时评估基频的方法
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123317
V. Cociu, Livia Cociu
{"title":"Optimization of a method to evaluate the fundamental frequency in real time","authors":"V. Cociu, Livia Cociu","doi":"10.1109/SIELMEN.2017.8123317","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123317","url":null,"abstract":"The problem studied in this paper and described in the literature is determining the fundamental frequency of a non-trivial signal in real-time. Using the gradient-descent algorithm, a new optimized method for fundamental frequency evaluation was proposed. The comparison between the two methods, classic and optimized, was carried out by utilizing a sine, square and amplitude modulated wave as input. In all cases, using the optimized method the system clearly performs better.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"3 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":"122336187","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
Heating system for industrial applications 工业用加热系统
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123305
Cosmin Pintilie, A. Plesca
{"title":"Heating system for industrial applications","authors":"Cosmin Pintilie, A. Plesca","doi":"10.1109/SIELMEN.2017.8123305","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123305","url":null,"abstract":"The paper presents a theoretical approach about a heating system for industrial applications which could be transffered to a domestic application regard of how to automatically heating the water, from a input value until an heigh output value. Heated water could be used in different industrial technological processes, also at domestic houses or office buildings to prepare hot water. In this paper it's descriebed an automatic heating system — tankless, which has the advantage to use a small dimensions and could be mount in narrow spaces. The main purpose is to maintain a higher temperature of the heated water depending on the industrial or domestic application. Coupling or decoupling at different intermediate heating steps using power resistors is achieved with static contactors which are built with thyristor in antiparallel or triacs mounted on their grids depend on output temperature. Temperatures could be measured in steady-state or transient regime. One of the goal is to obtain a higher increasing of temperature in shortly time.","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":"126062831","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
Technical risks for solar tower CSP plant: A study case 太阳能塔式CSP电站的技术风险:一个案例研究
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123341
Yosef Elia, M. Istrate, D. Lucache, Valentin Niţă
{"title":"Technical risks for solar tower CSP plant: A study case","authors":"Yosef Elia, M. Istrate, D. Lucache, Valentin Niţă","doi":"10.1109/SIELMEN.2017.8123341","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123341","url":null,"abstract":"Most developed countries have adopted policies to reduce nuclear and fossil fuel consumption and to increase the Renewables Energy Plant in the following sectors: Wind power, Hydroelectric, Solar Thermal, Solar Thermo-electric, Photovoltaic, Geothermal, Biomass, Biogas and Biofuels. When selecting one from various Renewable Energy, decision-making has to take into consideration several conflicting objectives because of the increasingly complex social, policy, politics, local renewable resources, economic, technological, and environmental factors that are present. This paper purpose is to presents the technical risk management factors in solar CSP power plant projects. As an example, risk factors identification and analysis was applied for one of major project component, the Wireless Control.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"428 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":"116057103","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
Monitoring photovoltaic parks for damage prevention and optimal operation 对光伏电站进行监测，防止损坏并优化运行
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123340
C. Haba
{"title":"Monitoring photovoltaic parks for damage prevention and optimal operation","authors":"C. Haba","doi":"10.1109/SIELMEN.2017.8123340","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123340","url":null,"abstract":"The effects of climate change due to global warming as a result of increased carbon dioxide emissions are beginning to become more and more visible due to the more frequent occurrences of extreme weather phenomena even in places considered to be quiet from this point of view. Expanding renewable energy production is one of the measures taken to reduce emissions and the development and installation of new photovoltaic (PV) parks is the result of these measures. Unlike in the case of other methods of electricity generation, those using photovoltaic cells must operate in open space in order to capture as much as possible of the solar energy. This has the disadvantage that solar panels are continuously exposed to meteorological phenomena. In this paper we propose a system which, in association with the devices of a PV system, will allow the collection and processing of different data for the identification of possible extreme meteorological phenomena and initiation of protection measures while alerting of the appropriate decision factors.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"19 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":"123773437","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: 7
Self-assessment as a key criterion for increase of quality of higher education in modern conditions 自我评价是现代条件下提高高等教育质量的重要标准
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123373
K. Berzina, I. Zicmane, Jevgenijs Kuckovskis
{"title":"Self-assessment as a key criterion for increase of quality of higher education in modern conditions","authors":"K. Berzina, I. Zicmane, Jevgenijs Kuckovskis","doi":"10.1109/SIELMEN.2017.8123373","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123373","url":null,"abstract":"The process of globalization poses new challenges for the government in the field of education system regulation. The growing importance of the need for a qualitative assessment of the state of the educational process contributed to the development of one of the new scientific directions — the issue of quality management of higher education. Despite the fact that a lot of publications have appeared recently on improving the quality of education and the need to introduce its objective assessments, the discussion is mainly about assessing the individual achievements of students and about licensing, certification and accreditation of educational institutions, while the problem of assessing the quality of higher education is much deeper and more serious. The article is devoted to the problem of improving the quality of modern higher education in the context of the need for self-assessment, criteria for assessing quality are proposed.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"14 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":"121241019","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: 5
A theoretical result on stabilizability of oxygen excess ratio for PEM fuel cell PEM燃料电池氧过剩比稳定性的理论结果
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123398
Moustapha Niane, M. Zerrougui, R. Outbib
{"title":"A theoretical result on stabilizability of oxygen excess ratio for PEM fuel cell","authors":"Moustapha Niane, M. Zerrougui, R. Outbib","doi":"10.1109/SIELMEN.2017.8123398","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123398","url":null,"abstract":"This paper is a contribution to the problem of the control of PEM Fuel Cell. More precisely, a theoretical result is proposed to prove that the oxygen excess ratio value can controlled by using a continuous state feedback. The result is established without any linearization.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"68 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":"132654101","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
Simulation of asynchronous motor tests on the simpowersystems program base 基于simpowersystems程序库的异步电机测试仿真
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123315
I. Leonid, Burduniuc Marcel, I. Maria, Rujanschi Dumitru
{"title":"Simulation of asynchronous motor tests on the simpowersystems program base","authors":"I. Leonid, Burduniuc Marcel, I. Maria, Rujanschi Dumitru","doi":"10.1109/SIELMEN.2017.8123315","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123315","url":null,"abstract":"In the paper is used the Simpowersystems program which is used for calculating the static mechanical characteristic and operating characteristics within the range of variation of rotor slippage. Also, the program can be used to determine the starting moment corresponding to the rotor resistance and reactance values in the startup process. This program does not allow for the modification of rotor parameters depending on the slippage, introducing sufficient errors in the calculation of the starting characteristic of the asynchronous motor.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"28 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":"133192360","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
Comparative study of the level of awareness of e-waste management in Romania and Republic of Moldova 罗马尼亚和摩尔多瓦共和国电子废物管理意识水平的比较研究
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123363
Georgiana Lucache, A. Turcanu, D. Lucache, I. Nuca
{"title":"Comparative study of the level of awareness of e-waste management in Romania and Republic of Moldova","authors":"Georgiana Lucache, A. Turcanu, D. Lucache, I. Nuca","doi":"10.1109/SIELMEN.2017.8123363","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123363","url":null,"abstract":"The paper focuses on the management of the e-waste and, based on a comparative analysis of the level of awareness of the danger of the improper disposal of them, in Romania and the Republic of Moldova. The collection of data for the study was based on a distribution of a survey with 19 questions in both countries with 202 and 27 questionnaires in Romania and Republic of Moldova respectively. The results of the study show that the awareness of both countries is critically low, with the problem being more stringent in the Republic of Moldovan.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"17 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":"114809332","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
Quality assurance in online education — in the tehnical university of Moldova experience 质量保证在线教育-在摩尔多瓦技术大学的经验
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123351
P. Todos, Petru Virlan, Cristina Ghencea
{"title":"Quality assurance in online education — in the tehnical university of Moldova experience","authors":"P. Todos, Petru Virlan, Cristina Ghencea","doi":"10.1109/SIELMEN.2017.8123351","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123351","url":null,"abstract":"Online education constitutes an important component in the continuous growth / development of higher education and adult education. Its quality largely depends on the design rules and the evaluation standards of the programs as a whole as well as the study courses as component parts. The need to ensure the quality of online courses is a current issue. The paper proposes a system of standards, criteria and performance indicators for the design and internal evaluation of on-line courses on e-learning platforms, based on the own experience and good European and world practice.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"25 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":"116543984","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
Virtual monitoring of electrical circuitry 电路的虚拟监控
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123367
Costei Donose, Cristina-Mihaela Schreiner, A. Podaru, Lonel Pavel
{"title":"Virtual monitoring of electrical circuitry","authors":"Costei Donose, Cristina-Mihaela Schreiner, A. Podaru, Lonel Pavel","doi":"10.1109/SIELMEN.2017.8123367","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123367","url":null,"abstract":"The use of virtual instruments has a very important role in both specialized laboratories and academic ones. Because it is a modern method, it provides increased comfort in monitoring electrical circuits in the long term, as well as reduced costs of implementing and developing laboratories. This paper deals with the efficiency of virtual instruments in monitoring electrical circuits as compared to that of conventional devices. The built equipment can measure three physical measures in real time and offers graphical representations for each value. This also offers a new perspective on new trends in didactic methodology for pupils.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"448 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":"113967151","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
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