Pub Date : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046354
A. Fodor, T. Sandor
In this publication, a kinematic procedure is presented, which can be used to determine the efficiency of an electric motor given the speed of the vehicle and the gear ratio set with the gear shifter. The generated look-up table can be used later during Simulink modeling, thus shortening the implementation of the drive chain and speeding up its simulation thanks to the reduced calculation requirements. However, due to the changed circumstances of the use of the efficiency map, instead of the 2 independent variables characteristic of the current state of the engine, 5 independent variables are finally required to directly access the efficiency data, which are the current parameters of the vehicle dynamics.
{"title":"Calculating the efficiency of an electric motor from the speed of the vehicle and the slope of the road","authors":"A. Fodor, T. Sandor","doi":"10.1109/CANDO-EPE57516.2022.10046354","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046354","url":null,"abstract":"In this publication, a kinematic procedure is presented, which can be used to determine the efficiency of an electric motor given the speed of the vehicle and the gear ratio set with the gear shifter. The generated look-up table can be used later during Simulink modeling, thus shortening the implementation of the drive chain and speeding up its simulation thanks to the reduced calculation requirements. However, due to the changed circumstances of the use of the efficiency map, instead of the 2 independent variables characteristic of the current state of the engine, 5 independent variables are finally required to directly access the efficiency data, which are the current parameters of the vehicle dynamics.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128042488","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046367
M. Buzdugan
Like the title indicates, the paper approaches a few effects of harmonics, may be the most important concerns in power quality issues, affecting directly electrical efficiency. The introductory section presents briefly a few generalities related to harmonics, i.e., their sources, their methods of analysis, as well as the most important quantitative indices related to them. The second section presents a resolution of powers in non-sinusoidal and unbalanced regimes in accordance with the standard IEC 1459-2010, chiefly important in assessing separately the contributions of the standardized harmonic power components. As a representative example, the third section is devoted to the effects of harmonics affecting induction motors, one of the most type of motors in electric drives. The following experimental section presents a comparison between two case studies in which a squirrel cage induction motor is subjected to two different voltages supply, one almost sinusoidal and the second strongly distorted by interharmonics. The analysis shows a drastic decrease in the efficiency of this type of motor in the presence of interharmonics.
{"title":"Influence of harmonic and interharmonic distortion on electrical efficiency of low voltage grids","authors":"M. Buzdugan","doi":"10.1109/CANDO-EPE57516.2022.10046367","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046367","url":null,"abstract":"Like the title indicates, the paper approaches a few effects of harmonics, may be the most important concerns in power quality issues, affecting directly electrical efficiency. The introductory section presents briefly a few generalities related to harmonics, i.e., their sources, their methods of analysis, as well as the most important quantitative indices related to them. The second section presents a resolution of powers in non-sinusoidal and unbalanced regimes in accordance with the standard IEC 1459-2010, chiefly important in assessing separately the contributions of the standardized harmonic power components. As a representative example, the third section is devoted to the effects of harmonics affecting induction motors, one of the most type of motors in electric drives. The following experimental section presents a comparison between two case studies in which a squirrel cage induction motor is subjected to two different voltages supply, one almost sinusoidal and the second strongly distorted by interharmonics. The analysis shows a drastic decrease in the efficiency of this type of motor in the presence of interharmonics.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116944107","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046353
T. Sikora, Miroslava Nejtková
The paper deals with fires caused by electrical conductors placed on or near flammable materials. Our homes and accommodation facilities are equipped with many wooden or wood-based objects and a lot of electrical conductors. Paper is focused on the initiation of fire from electric installations which are located in the most common materials such as wood, laminate, chipboard, carpet and upholstery of armchair. The aim is to show how the tested materials behave when exposed to an electric initiator. The results of such experiment are particularly useful for fire investigators. A simple test system for overloading is proposed. A wire resistance as temperature indicator prove most suitable for ignition point determining.
{"title":"Overloadindg Wiring Cables to Produce Samples for Fire Investigators","authors":"T. Sikora, Miroslava Nejtková","doi":"10.1109/CANDO-EPE57516.2022.10046353","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046353","url":null,"abstract":"The paper deals with fires caused by electrical conductors placed on or near flammable materials. Our homes and accommodation facilities are equipped with many wooden or wood-based objects and a lot of electrical conductors. Paper is focused on the initiation of fire from electric installations which are located in the most common materials such as wood, laminate, chipboard, carpet and upholstery of armchair. The aim is to show how the tested materials behave when exposed to an electric initiator. The results of such experiment are particularly useful for fire investigators. A simple test system for overloading is proposed. A wire resistance as temperature indicator prove most suitable for ignition point determining.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131313935","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046379
G. Molnár, Cserkó József
One of education’s most challenging tasks is accurately assessing student performance. Unfortunately, even nowadays, assessment is mainly done manually, with teachers manually correcting submitted work, essays, and dissertations. There is plagiarism checking services and algorithms, but these search for matches in theses and publications on the Internet, so they need to be more suitable for facilitating teachers’ daily work. In this paper, we present a self-developed plagiarism screening application that can find duplicates in students’ submitted work. The tool performs simple text comparison and syntactic and semantic checking. We also created an easy-to-use online interface where users can easily create and run projects.
{"title":"AI Based Plagiarism Checking : Ease of use and appli7cable system for teachers to find similarities in students’ assessments","authors":"G. Molnár, Cserkó József","doi":"10.1109/CANDO-EPE57516.2022.10046379","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046379","url":null,"abstract":"One of education’s most challenging tasks is accurately assessing student performance. Unfortunately, even nowadays, assessment is mainly done manually, with teachers manually correcting submitted work, essays, and dissertations. There is plagiarism checking services and algorithms, but these search for matches in theses and publications on the Internet, so they need to be more suitable for facilitating teachers’ daily work. In this paper, we present a self-developed plagiarism screening application that can find duplicates in students’ submitted work. The tool performs simple text comparison and syntactic and semantic checking. We also created an easy-to-use online interface where users can easily create and run projects.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116610249","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046357
Alireza Aghasi, R. Rituraj
Since some cloud resources are located as edge servers near mobile devices, these devices can offload some of their tasks to those servers. This will accelerate the task execution to meet the increasing computing demands of mobile applications. Various approaches have been proposed to make offloading decisions about offloading. In this paper we present a Reinforcement Learning(RL) approach that considers delayed feedback from the environment, which is more realistic than conventional RL methods. The simulation results show that the proposed method succeeded to handle the random delayed feedback of the environment properly and enhanced the conventional reinforcement methods significantly.
{"title":"A Latency-Aware Power-efficient Reinforcement Learning Approach for Task Offloading in Multi-Access Edge Networks","authors":"Alireza Aghasi, R. Rituraj","doi":"10.1109/CANDO-EPE57516.2022.10046357","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046357","url":null,"abstract":"Since some cloud resources are located as edge servers near mobile devices, these devices can offload some of their tasks to those servers. This will accelerate the task execution to meet the increasing computing demands of mobile applications. Various approaches have been proposed to make offloading decisions about offloading. In this paper we present a Reinforcement Learning(RL) approach that considers delayed feedback from the environment, which is more realistic than conventional RL methods. The simulation results show that the proposed method succeeded to handle the random delayed feedback of the environment properly and enhanced the conventional reinforcement methods significantly.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"212 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117300719","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046373
Zsolt Čonka, V. Kohan, R. Štefko, M. Kolcun
The work deals with the principle of wind power regulation by changing the angles of rotation of the turbine blades. In the introduction there is a literary overview of the issue that has helped to assume and design the management program in Matlab software. The benefits of this regulation and the need for the implementation of the control of wind power blades are described in more detail and simulated for real cases in practice. The work there is also a description of the introduction of the European Commission regulations to these wind farm regulations. In the end of the paper shows examples of various possible types of wind speed, its direction and rotation of blades to frequency and active performance ratio. This is then pointed to the importance of installing the control units of active power for renewable power generation. Study on changing the rotation of the blades in the control of wind power plants confirmed that it is the necessary need for each turbine that me to be connected to the operation of electricity-sharing systems from electricity produced from electricity sources.
{"title":"Wind turbine power control","authors":"Zsolt Čonka, V. Kohan, R. Štefko, M. Kolcun","doi":"10.1109/CANDO-EPE57516.2022.10046373","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046373","url":null,"abstract":"The work deals with the principle of wind power regulation by changing the angles of rotation of the turbine blades. In the introduction there is a literary overview of the issue that has helped to assume and design the management program in Matlab software. The benefits of this regulation and the need for the implementation of the control of wind power blades are described in more detail and simulated for real cases in practice. The work there is also a description of the introduction of the European Commission regulations to these wind farm regulations. In the end of the paper shows examples of various possible types of wind speed, its direction and rotation of blades to frequency and active performance ratio. This is then pointed to the importance of installing the control units of active power for renewable power generation. Study on changing the rotation of the blades in the control of wind power plants confirmed that it is the necessary need for each turbine that me to be connected to the operation of electricity-sharing systems from electricity produced from electricity sources.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121163209","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046356
G. Molnár, Zoltan Szuts
The emergence of new ICT tools, smartphone applications and digital platforms has made teachers curious about how to use them in education. This has led to a number of good practices. It is questionable whether continuous and meticulous measurements with digital tools can significantly help the work, or whether the glamour of numbers can obscure the point and induce unnecessary developments and purchases.
{"title":"Use of Artificial Intelligence in Electronic Learning Environments","authors":"G. Molnár, Zoltan Szuts","doi":"10.1109/CANDO-EPE57516.2022.10046356","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046356","url":null,"abstract":"The emergence of new ICT tools, smartphone applications and digital platforms has made teachers curious about how to use them in education. This has led to a number of good practices. It is questionable whether continuous and meticulous measurements with digital tools can significantly help the work, or whether the glamour of numbers can obscure the point and induce unnecessary developments and purchases.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122156891","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046376
Richard Haddad, György Morva, József Bencsik, P. Kádár
In this paper we discuss new tasks and challenges in the energy systems. In Hungary- as pilot projects - small settlement energy communities have started. In these, basically, solar panels appear as producers, in household sizes (3-10 kW) or as concentrated larger units (50-300kW). The article deals with the possible measurement and accounting system, as well as the relationship between the necessary control technology and the energy community and the territorially competent DSO dispatch center.
{"title":"Energy management system for energy communities","authors":"Richard Haddad, György Morva, József Bencsik, P. Kádár","doi":"10.1109/CANDO-EPE57516.2022.10046376","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046376","url":null,"abstract":"In this paper we discuss new tasks and challenges in the energy systems. In Hungary- as pilot projects - small settlement energy communities have started. In these, basically, solar panels appear as producers, in household sizes (3-10 kW) or as concentrated larger units (50-300kW). The article deals with the possible measurement and accounting system, as well as the relationship between the necessary control technology and the energy community and the territorially competent DSO dispatch center.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131797242","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046359
Z. Balogh
Emotion recognition relies heavily on physiological reactions and facial expressions. The goal of the research is to design an Internet of Things (IoT) based sensor network that can monitor the emotional state of users. IoT is a network of physical objects, devices, machines and other objects with advanced electronics that includes software, sensors and network connectivity, which enables the collection and exchange of data. Using current technology, a set of measurement devices can be used to create a complex sensory network that is capable of acquiring physiological responses and recognizing emotions based on a user’s facial features using facial recognition software. It is also important to automate these devices and the acquisition of sensory data so that they can be easily used without the need for additional user input. The aim of the research is to describe an experiment in which physiological features are collected using inexpensive, common and noninvasive Internet of Things (IoT) devices and the sensory data is automatically sent to a server for further processing. A dataset is created from the measured values and descriptive statistics are used to understand and visualise them.
{"title":"Using Commonly Available IoT Devices to Support and Facilitate the Learning Process : Plenary Talk","authors":"Z. Balogh","doi":"10.1109/CANDO-EPE57516.2022.10046359","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046359","url":null,"abstract":"Emotion recognition relies heavily on physiological reactions and facial expressions. The goal of the research is to design an Internet of Things (IoT) based sensor network that can monitor the emotional state of users. IoT is a network of physical objects, devices, machines and other objects with advanced electronics that includes software, sensors and network connectivity, which enables the collection and exchange of data. Using current technology, a set of measurement devices can be used to create a complex sensory network that is capable of acquiring physiological responses and recognizing emotions based on a user’s facial features using facial recognition software. It is also important to automate these devices and the acquisition of sensory data so that they can be easily used without the need for additional user input. The aim of the research is to describe an experiment in which physiological features are collected using inexpensive, common and noninvasive Internet of Things (IoT) devices and the sensory data is automatically sent to a server for further processing. A dataset is created from the measured values and descriptive statistics are used to understand and visualise them.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129759077","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 : 2018-07-01DOI: 10.1109/igarss.2018.8519002
C. Cassandras
{"title":"Welcome from the General Chair","authors":"C. Cassandras","doi":"10.1109/igarss.2018.8519002","DOIUrl":"https://doi.org/10.1109/igarss.2018.8519002","url":null,"abstract":"","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123449480","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}
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