Pub Date : 2018-10-01DOI: 10.1109/ICEPE.2018.8559829
F. Băiceanu, C. Rosu, F. Munteanu
The LF (Ladle Furnace) furnace is used in the metallurgical industry to perform auxiliary treatments in order to obtain superior grades of steel. LF is a typical disturbance load affecting the power quality. In the present paper, the authors analyze the quality of electrical energy during a process of additional steel treatment. The power quality indices related to current and voltage harmonics, interharmonics, power factor and flicker phenomenon are detailed with a view to bring out the area affected as well the amplitude of perturbations in the HV/MV/LV industrial power network.
{"title":"Influence of a Highly Nonlinear Load on Power Quality in a Steel Factory","authors":"F. Băiceanu, C. Rosu, F. Munteanu","doi":"10.1109/ICEPE.2018.8559829","DOIUrl":"https://doi.org/10.1109/ICEPE.2018.8559829","url":null,"abstract":"The LF (Ladle Furnace) furnace is used in the metallurgical industry to perform auxiliary treatments in order to obtain superior grades of steel. LF is a typical disturbance load affecting the power quality. In the present paper, the authors analyze the quality of electrical energy during a process of additional steel treatment. The power quality indices related to current and voltage harmonics, interharmonics, power factor and flicker phenomenon are detailed with a view to bring out the area affected as well the amplitude of perturbations in the HV/MV/LV industrial power network.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123386677","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}
Pub Date : 2018-10-01DOI: 10.1109/icepe.2018.8559882
Machidon Dragos, I. Marcel, Oprea Roxana
Fossil fuels burning is one of the main techniques utilized in order to generate electricity in large scale power plants. However, in the last decades, due to growing concern related to the impact of toxic gases, solid particles and greenhouse gases associated with fossil fuels burning on the environment, significant measures were considered in order to reduce these negative consequences. Along these measures, the development of the renewable energies was considered a key factor, and consequently was encouraged through several political decisions. Romania, as a European Union's member had to implement the established directives and, consequently, the renewable energy sector known a rapid evolution in the past eight years. In this paper an analysis is conducted in order to evaluate the impact of the renewable energy sector development on the CO2 emissions levels in Romania.
{"title":"Analysis of the Renewable Energy Sector's Development Impact on the CO2 Emissions in Romania","authors":"Machidon Dragos, I. Marcel, Oprea Roxana","doi":"10.1109/icepe.2018.8559882","DOIUrl":"https://doi.org/10.1109/icepe.2018.8559882","url":null,"abstract":"Fossil fuels burning is one of the main techniques utilized in order to generate electricity in large scale power plants. However, in the last decades, due to growing concern related to the impact of toxic gases, solid particles and greenhouse gases associated with fossil fuels burning on the environment, significant measures were considered in order to reduce these negative consequences. Along these measures, the development of the renewable energies was considered a key factor, and consequently was encouraged through several political decisions. Romania, as a European Union's member had to implement the established directives and, consequently, the renewable energy sector known a rapid evolution in the past eight years. In this paper an analysis is conducted in order to evaluate the impact of the renewable energy sector development on the CO2 emissions levels in Romania.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121342237","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}
Pub Date : 2018-10-01DOI: 10.1109/ICEPE.2018.8559949
I. Zicmane, K. Berzina, Jevgenijs Kuckovskis
One of the key drivers that characterize both the processes of reorganization of the higher education model of education and the need for it is the process of globalization, affecting almost all aspects of modern life, and the informatization of the educational process associated with the rapid development of innovative computer technologies. At the same time, the main goal of the information based educational environment should be to ensure the transition of education to a new level of quality, i.e., to a state corresponding to the development of the information society and the associated need of specialists of appropriate skill levels. Currently, there is an active search for new forms and methods of teaching, which makes it possible to talk about the transition of education from a directive model to an interactive, learner’s personality-oriented, more productive, one. The article deals with the possibility of using innovative teaching methods in preparing technical university students. Also, advantages and disadvantages of traditional and innovative teaching methods are described, through the development, application and implementation of innovative technologies.
{"title":"Innovative Methods of Teaching Students of Technical Universities Taking into Account the Increase in Information Flow","authors":"I. Zicmane, K. Berzina, Jevgenijs Kuckovskis","doi":"10.1109/ICEPE.2018.8559949","DOIUrl":"https://doi.org/10.1109/ICEPE.2018.8559949","url":null,"abstract":"One of the key drivers that characterize both the processes of reorganization of the higher education model of education and the need for it is the process of globalization, affecting almost all aspects of modern life, and the informatization of the educational process associated with the rapid development of innovative computer technologies. At the same time, the main goal of the information based educational environment should be to ensure the transition of education to a new level of quality, i.e., to a state corresponding to the development of the information society and the associated need of specialists of appropriate skill levels. Currently, there is an active search for new forms and methods of teaching, which makes it possible to talk about the transition of education from a directive model to an interactive, learner’s personality-oriented, more productive, one. The article deals with the possibility of using innovative teaching methods in preparing technical university students. Also, advantages and disadvantages of traditional and innovative teaching methods are described, through the development, application and implementation of innovative technologies.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114784629","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}
Pub Date : 2018-10-01DOI: 10.1109/ICEPE.2018.8559848
Marian Dragomir, M. Istrate, A. Dragomir
Due to the expansion of the power systems over the last decades, the fault location process became more and more important. Accurate fault location can minimize the time of finding the location of a fault along the line by the inspection crew and thus to minimize the outage time of the faulted line with benefits in power system stability. In the paper there is presented a fault location algorithm widely used in real power systems and the major error sources that affects its precision. The fault location simulations obtained from a simulation model of a real network transposed in Matlab show that some error sources can be reduced in order to obtain better fault location estimations.
{"title":"Review of Error Sources in One-End Data Impedance-Based Fault Location Algorithms","authors":"Marian Dragomir, M. Istrate, A. Dragomir","doi":"10.1109/ICEPE.2018.8559848","DOIUrl":"https://doi.org/10.1109/ICEPE.2018.8559848","url":null,"abstract":"Due to the expansion of the power systems over the last decades, the fault location process became more and more important. Accurate fault location can minimize the time of finding the location of a fault along the line by the inspection crew and thus to minimize the outage time of the faulted line with benefits in power system stability. In the paper there is presented a fault location algorithm widely used in real power systems and the major error sources that affects its precision. The fault location simulations obtained from a simulation model of a real network transposed in Matlab show that some error sources can be reduced in order to obtain better fault location estimations.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"102 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124302463","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}
Pub Date : 2018-10-01DOI: 10.1109/ICEPE.2018.8559934
E. Gheorghiu, M. Poienar, L. Milici
The paper presents the current state of research within the Stefan cel Mare University of Suceava in the energy field. Were approached research topics in the field of Smart Grid systems, as well as researches related to the renewable energy and orientation and positioning systems of the solar panels.
{"title":"Current State of Researches in the Development of Energy Systems at Stefan cel Mare University of Suceava","authors":"E. Gheorghiu, M. Poienar, L. Milici","doi":"10.1109/ICEPE.2018.8559934","DOIUrl":"https://doi.org/10.1109/ICEPE.2018.8559934","url":null,"abstract":"The paper presents the current state of research within the Stefan cel Mare University of Suceava in the energy field. Were approached research topics in the field of Smart Grid systems, as well as researches related to the renewable energy and orientation and positioning systems of the solar panels.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124523638","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}
Pub Date : 2018-10-01DOI: 10.1109/ICEPE.2018.8559644
C. Barz, C. Lung, Chiver Olivian, C. Jalba
Many automation processes must become increasingly intelligent so that they can work independently without additional programming. In this work it will be shown how an intelligent gripper can be controlled with the help of low-cost components in order to recognize objects independently and lift them safely with adapted gripping force.
{"title":"The Development of an Intelligent Gripper with Freely Programmable Controls","authors":"C. Barz, C. Lung, Chiver Olivian, C. Jalba","doi":"10.1109/ICEPE.2018.8559644","DOIUrl":"https://doi.org/10.1109/ICEPE.2018.8559644","url":null,"abstract":"Many automation processes must become increasingly intelligent so that they can work independently without additional programming. In this work it will be shown how an intelligent gripper can be controlled with the help of low-cost components in order to recognize objects independently and lift them safely with adapted gripping force.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126290963","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}
Pub Date : 2018-10-01DOI: 10.1109/ICEPE.2018.8559852
T. Gordiyenko, O. Velychko, A. Sălceanu
The effectiveness of expert evaluations essentially depends on the competence of the involved experts. Quantitative evaluations of the experts’ competence should be conducted in various fields of activity in order to obtain relevant data. This study is devoted to the features of estimation of expert’s competence in the field of electrical engineering education. The obtained data have been processed by using universal statistical software. In the evaluation have been included lecturers and tutors in electrical engineering being with universities from Romania and Ukraine. For the quantitative evaluation of expert’s competence, special criteria with their numerical score have been developed. Calculation of a number of mathematical indexes for the realization of the method for the competence evaluation of experts has been carried out.
{"title":"The Expert’s Competence Evaluation in Electrical Engineering Education","authors":"T. Gordiyenko, O. Velychko, A. Sălceanu","doi":"10.1109/ICEPE.2018.8559852","DOIUrl":"https://doi.org/10.1109/ICEPE.2018.8559852","url":null,"abstract":"The effectiveness of expert evaluations essentially depends on the competence of the involved experts. Quantitative evaluations of the experts’ competence should be conducted in various fields of activity in order to obtain relevant data. This study is devoted to the features of estimation of expert’s competence in the field of electrical engineering education. The obtained data have been processed by using universal statistical software. In the evaluation have been included lecturers and tutors in electrical engineering being with universities from Romania and Ukraine. For the quantitative evaluation of expert’s competence, special criteria with their numerical score have been developed. Calculation of a number of mathematical indexes for the realization of the method for the competence evaluation of experts has been carried out.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121776016","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}
Pub Date : 2018-10-01DOI: 10.1109/ICEPE.2018.8559884
C. Pică, R. Munteanu, S. Pavel, Horia Beleiu
Through the photovoltaic effect, photovoltaic cells convert solar energy into electrical energy. Photovoltaic cells are connected in series to reach the desired voltage (around 700-1000V DC), then parallel in order to obtain a higher current (8-16 A). The photovoltaic cells must be used at their maximum power point. The I – U curve of a photovoltaic panel is non-linear, and environmental factors such as temperature or solar irradiation bring considerable variations to the characteristic and location of the maximum power point. This paper presents a method based on the mathematical model of a diode for tracking the maximum power point of a photovoltaic panel or a photovoltaic field under different meteorological conditions using only the data provided by the manufacturers. The model has been validated with experimental data of a commercial photovoltaic module, CHSM6610P Astroenergy.
{"title":"Modeling of Photovoltaic Panels","authors":"C. Pică, R. Munteanu, S. Pavel, Horia Beleiu","doi":"10.1109/ICEPE.2018.8559884","DOIUrl":"https://doi.org/10.1109/ICEPE.2018.8559884","url":null,"abstract":"Through the photovoltaic effect, photovoltaic cells convert solar energy into electrical energy. Photovoltaic cells are connected in series to reach the desired voltage (around 700-1000V DC), then parallel in order to obtain a higher current (8-16 A). The photovoltaic cells must be used at their maximum power point. The I – U curve of a photovoltaic panel is non-linear, and environmental factors such as temperature or solar irradiation bring considerable variations to the characteristic and location of the maximum power point. This paper presents a method based on the mathematical model of a diode for tracking the maximum power point of a photovoltaic panel or a photovoltaic field under different meteorological conditions using only the data provided by the manufacturers. The model has been validated with experimental data of a commercial photovoltaic module, CHSM6610P Astroenergy.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115869268","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}
Pub Date : 2018-10-01DOI: 10.1109/ICEPE.2018.8559757
R. Maśnicki, J. Mindykowski
The issue of correctness of the indications of electricity meters still exists, both as published results of scientific research, as well as in the perceptions and opinions of energy consumers. These meters meet the legal regulations regarding the accuracy of their indications for network signals with limited distortion. However, what do they indicate when these signals are distorted? In the paper, the authors present a simulation method showing the importance of the characteristics of selected functional blocks of a static meter and the impact of their course on the measurement results.
{"title":"What Should Be Measured Using Static Energy Meters","authors":"R. Maśnicki, J. Mindykowski","doi":"10.1109/ICEPE.2018.8559757","DOIUrl":"https://doi.org/10.1109/ICEPE.2018.8559757","url":null,"abstract":"The issue of correctness of the indications of electricity meters still exists, both as published results of scientific research, as well as in the perceptions and opinions of energy consumers. These meters meet the legal regulations regarding the accuracy of their indications for network signals with limited distortion. However, what do they indicate when these signals are distorted? In the paper, the authors present a simulation method showing the importance of the characteristics of selected functional blocks of a static meter and the impact of their course on the measurement results.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130127341","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}
Pub Date : 2018-10-01DOI: 10.1109/ICEPE.2018.8559836
B. Kohlhepp, M. Barwig, T. Dürbaum
High efficiency calls for soft switching and high frequency converters. Correctly designed asymmetric half-bridge PWM converters employing ZVS represent an attractive candidate. For low output voltage applications, synchronous rectification should allow efficient operation. However, since simple replacement shows promising results through simulation, a test setup reveals a great discrepancy. Massive oscillations during the turn-off transition of the synchronous rectifier causes enormous losses. Therefore, a second synchronous rectifier design is investigated, which uses an alternative design method. This design confirms the improved efficiency achieved by simulation.
{"title":"Improving Efficiency of an Asymmetrical Half-Bridge PWM Converter with Synchronous Rectification by a Modified Design Process","authors":"B. Kohlhepp, M. Barwig, T. Dürbaum","doi":"10.1109/ICEPE.2018.8559836","DOIUrl":"https://doi.org/10.1109/ICEPE.2018.8559836","url":null,"abstract":"High efficiency calls for soft switching and high frequency converters. Correctly designed asymmetric half-bridge PWM converters employing ZVS represent an attractive candidate. For low output voltage applications, synchronous rectification should allow efficient operation. However, since simple replacement shows promising results through simulation, a test setup reveals a great discrepancy. Massive oscillations during the turn-off transition of the synchronous rectifier causes enormous losses. Therefore, a second synchronous rectifier design is investigated, which uses an alternative design method. This design confirms the improved efficiency achieved by simulation.","PeriodicalId":343896,"journal":{"name":"2018 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"8 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130131967","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：