Pub Date : 2020-11-05DOI: 10.1109/RTUCON51174.2020.9316603
Jolanta Graudone, P. Apse-Apsitis, I. Dāboliņa, R. Porins, L. Siliņa, E. Lapkovska
The clothing fit is considered to be a set of objective and subjective assessments that provide the functionality and comfort of the clothing to the wearer. The methods currently applied in the textile industry to determine clothing fit do not provide sufficient qualitative and quantitative data. In general, evaluation is subjective, which is difficult to use in further research to gain any improvements. Development of a sensor matrix would be able to address this problem. Specifics of the industry do not allow direct transfer of existing sensor solutions to measure pressure and other characteristics, possible solutions should be researched to develop user-friendly, flexible, easy to use product. A new prototype of the sensor matrix has been developed on the basis of research carried out in the previous work. Sensor matrix was evaluated, the results of the measurements were analyzed.
{"title":"Research and Development of Clothing Fit by Sensor Matrix","authors":"Jolanta Graudone, P. Apse-Apsitis, I. Dāboliņa, R. Porins, L. Siliņa, E. Lapkovska","doi":"10.1109/RTUCON51174.2020.9316603","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316603","url":null,"abstract":"The clothing fit is considered to be a set of objective and subjective assessments that provide the functionality and comfort of the clothing to the wearer. The methods currently applied in the textile industry to determine clothing fit do not provide sufficient qualitative and quantitative data. In general, evaluation is subjective, which is difficult to use in further research to gain any improvements. Development of a sensor matrix would be able to address this problem. Specifics of the industry do not allow direct transfer of existing sensor solutions to measure pressure and other characteristics, possible solutions should be researched to develop user-friendly, flexible, easy to use product. A new prototype of the sensor matrix has been developed on the basis of research carried out in the previous work. Sensor matrix was evaluated, the results of the measurements were analyzed.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121986365","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 : 2020-11-05DOI: 10.1109/RTUCON51174.2020.9316481
Muhammad M. A. S. Mahmoud
This paper is an extension work to previous research that calculates the saving norm of replacement HPS Street Lighting by LED fixtures in access road of gas production company at GCC. In this paper we introduce a novelty in economic model to consider the replacement of different types of high-intensity discharge lamps (HID) by LED lights. The global saving norm and the payback indicator are determined based on two main aspects; “Company Benefits”, in which the Gas Company can gain it directly, and “National Benefits” that can be achieved by creating better gas sales opportunity for the county and by the reduction of the CO2emission and hence the pollution.
{"title":"Economic Model for Calculating the Global Saving Norm of Replacement High-Intensity Discharge Lamps with LED Lamp in Oil and Gas Plant","authors":"Muhammad M. A. S. Mahmoud","doi":"10.1109/RTUCON51174.2020.9316481","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316481","url":null,"abstract":"This paper is an extension work to previous research that calculates the saving norm of replacement HPS Street Lighting by LED fixtures in access road of gas production company at GCC. In this paper we introduce a novelty in economic model to consider the replacement of different types of high-intensity discharge lamps (HID) by LED lights. The global saving norm and the payback indicator are determined based on two main aspects; “Company Benefits”, in which the Gas Company can gain it directly, and “National Benefits” that can be achieved by creating better gas sales opportunity for the county and by the reduction of the CO2emission and hence the pollution.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125888409","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 : 2020-11-05DOI: 10.1109/RTUCON51174.2020.9316553
Rudite Vesere, S. Kalniņš, Dace Lauka, D. Blumberga
The aim of the circular economy is to maximize the value of a product during its use, using secondary raw materials to create new products. This research focus on the possibilities of using waste as an energy resource - both the aspects of waste recovery, from the point of view of reducing the amount of landfilled waste, and the extraction and further efficient use of landfill gas. In this case the TOPSIS analysis method was used, five alternatives were selected - waste as an energy resource, which was evaluated based on four criteria: technological, economic, social, as well as environmental and climate aspects. The results of ranking energy recovery methods from waste using the TOPSIS method clearly show that the most optimal of the selected alternatives is the use of biodegradable (organic) waste for biogas production. This opens up opportunities for biofuels to be applied in road transport.
{"title":"Circular Economy Analysis. Ranking of Energy Resources from Waste","authors":"Rudite Vesere, S. Kalniņš, Dace Lauka, D. Blumberga","doi":"10.1109/RTUCON51174.2020.9316553","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316553","url":null,"abstract":"The aim of the circular economy is to maximize the value of a product during its use, using secondary raw materials to create new products. This research focus on the possibilities of using waste as an energy resource - both the aspects of waste recovery, from the point of view of reducing the amount of landfilled waste, and the extraction and further efficient use of landfill gas. In this case the TOPSIS analysis method was used, five alternatives were selected - waste as an energy resource, which was evaluated based on four criteria: technological, economic, social, as well as environmental and climate aspects. The results of ranking energy recovery methods from waste using the TOPSIS method clearly show that the most optimal of the selected alternatives is the use of biodegradable (organic) waste for biogas production. This opens up opportunities for biofuels to be applied in road transport.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127179458","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 : 2020-11-05DOI: 10.1109/RTUCON51174.2020.9316558
M. Dunaev, S. Dovudov, R. Yunusov, M. Safaraliev, K. Gulyamov
The article is devoted on modeling semiconductor converter scheme of the pulse-frequency converter (PFC) with four-powered keys on turn-on SCR thyristors. The PFC scheme has been modeled within MATLAB environment by means of Simulink/Simscape library components. Operation principle of the PFC was defined. Square-ware generator have been modeled via Simscape library elements. The experiment was carried out and the adjustment and output characteristics of the PFC have been obtained. The analysis of the characteristics obtained during modeling and experiment were carried out. The adequacy of the developed PFC model was confirmed.
{"title":"Pulse-Frequency Converter Development and Modeling within MATLAB/SIMULINK Environment","authors":"M. Dunaev, S. Dovudov, R. Yunusov, M. Safaraliev, K. Gulyamov","doi":"10.1109/RTUCON51174.2020.9316558","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316558","url":null,"abstract":"The article is devoted on modeling semiconductor converter scheme of the pulse-frequency converter (PFC) with four-powered keys on turn-on SCR thyristors. The PFC scheme has been modeled within MATLAB environment by means of Simulink/Simscape library components. Operation principle of the PFC was defined. Square-ware generator have been modeled via Simscape library elements. The experiment was carried out and the adjustment and output characteristics of the PFC have been obtained. The analysis of the characteristics obtained during modeling and experiment were carried out. The adequacy of the developed PFC model was confirmed.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129554798","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 : 2020-11-05DOI: 10.1109/RTUCON51174.2020.9316615
M. N. Iqbal, L. Kütt, Noman Shabbir, B. Asad
This paper presents an analysis of current harmonic emission form different lighting technologies in the residential network. Lighting consumes a significant share of total electricity consumption. The governments are making policies to promote the usage of energy-efficient electrical appliances. The energy-efficient lamps are now replacing the inefficient incandescent lamps to reduce power consumption. These lamps encompass non-linear circuits and reduce the power quality of the distribution network. The large scale penetration of energy-efficient can have an enormous effect on power quality issues in the grid. This study provides an estimation of harmonic current emission by the gradual replacement of incandescent lamps with compact fluorescent and light-emitting diode lamps.
{"title":"Comparison of Current Harmonic Emission by Different Lighting Technologies","authors":"M. N. Iqbal, L. Kütt, Noman Shabbir, B. Asad","doi":"10.1109/RTUCON51174.2020.9316615","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316615","url":null,"abstract":"This paper presents an analysis of current harmonic emission form different lighting technologies in the residential network. Lighting consumes a significant share of total electricity consumption. The governments are making policies to promote the usage of energy-efficient electrical appliances. The energy-efficient lamps are now replacing the inefficient incandescent lamps to reduce power consumption. These lamps encompass non-linear circuits and reduce the power quality of the distribution network. The large scale penetration of energy-efficient can have an enormous effect on power quality issues in the grid. This study provides an estimation of harmonic current emission by the gradual replacement of incandescent lamps with compact fluorescent and light-emitting diode lamps.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121326264","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 : 2020-11-05DOI: 10.1109/rtucon51174.2020.9316602
{"title":"Copyright","authors":"","doi":"10.1109/rtucon51174.2020.9316602","DOIUrl":"https://doi.org/10.1109/rtucon51174.2020.9316602","url":null,"abstract":"","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122838397","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 : 2020-11-05DOI: 10.1109/RTUCON51174.2020.9316564
M. Gutten, M. Kučera, Viktor Cefer, Peter Brnčal, R. Jarina
The article deals with an on-line noncontact measuring method for the analysis of transformer operation by measuring acoustic, noise and electromagnetic emissions. The electric non-rotating machine generates electromagnetic and acoustic waves, by means of which it is possible to analyze not only operating states but also its possible fault states. We performed measurements of acoustic emission on the traction transformers 25/6 kV and 110/3 kV that were in real operation. We studied the spatial distribution of the acoustical field as well as its spectra. Preliminary results have shown that acoustic analysis may be a useful alternative option for high-power transformer's health condition.
{"title":"Analysis of Transformers by Acoustic Emission","authors":"M. Gutten, M. Kučera, Viktor Cefer, Peter Brnčal, R. Jarina","doi":"10.1109/RTUCON51174.2020.9316564","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316564","url":null,"abstract":"The article deals with an on-line noncontact measuring method for the analysis of transformer operation by measuring acoustic, noise and electromagnetic emissions. The electric non-rotating machine generates electromagnetic and acoustic waves, by means of which it is possible to analyze not only operating states but also its possible fault states. We performed measurements of acoustic emission on the traction transformers 25/6 kV and 110/3 kV that were in real operation. We studied the spatial distribution of the acoustical field as well as its spectra. Preliminary results have shown that acoustic analysis may be a useful alternative option for high-power transformer's health condition.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115462995","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 : 2020-11-05DOI: 10.1109/RTUCON51174.2020.9316480
P. Kovalenko, V. Mukhin, M. Senyuk, Diana D. Kornilova
In recent years, the technology of synchrophasor measurements has been actively introduced in power systems around the world. When managing the power system and predicting its modes, the important tasks are to check the reliability of data and estimate the state of the power system. The introduction of synchrophasor measurements, on the one hand, makes it possible to solve the problem of state estimation more efficiently in comparison with traditional telemetry. On the other hand, previously used data validation technologies are not suitable for their use with synchrophasor measurements due to the new properties of these measurements. It should also be borne in mind that these two tasks are interrelated. This study provides an overview of recently proposed power system state estimation and data validation methods based on synchrophasor measurements.
{"title":"Review of Methods for Power Systems State Estimation and Data Validation Based on Synchrophasor Measurements","authors":"P. Kovalenko, V. Mukhin, M. Senyuk, Diana D. Kornilova","doi":"10.1109/RTUCON51174.2020.9316480","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316480","url":null,"abstract":"In recent years, the technology of synchrophasor measurements has been actively introduced in power systems around the world. When managing the power system and predicting its modes, the important tasks are to check the reliability of data and estimate the state of the power system. The introduction of synchrophasor measurements, on the one hand, makes it possible to solve the problem of state estimation more efficiently in comparison with traditional telemetry. On the other hand, previously used data validation technologies are not suitable for their use with synchrophasor measurements due to the new properties of these measurements. It should also be borne in mind that these two tasks are interrelated. This study provides an overview of recently proposed power system state estimation and data validation methods based on synchrophasor measurements.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121579746","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 : 2020-11-05DOI: 10.1109/RTUCON51174.2020.9316555
R. D. Díaz Redondo, A. Ktena, N. Kunicina, A. Zabasta, A. Patlins, D. Mele
The development, introduction and evaluation of ICT based techniques have been at the forefront of educational reform of all levels for the last two decades. Microlearning, gamified learning are two novel ICT techniques most appropriate for e-learning material and programs which attracted renewed attention because of the CoVID-19 social distancing measures. Alongside those, the more established technique of practice-oriented learning is being revisited to adapt to the new challenges. This article presents the main results and conclusions of deliverable 3.1. of the ERASMUS+ Capacity Building for Higher Education project “Electrical Energy Markets and Engineering Education (ELEMEND)” which is devoted to training partner staff in micro learning, practice oriented teaching and gamified learning. After the goals of ELEMEND are presented in the light of modern engineering education, the concept of micro learning as a training paradigm is discussed. Next, gamification technology is described in view of its role in the educational process and specific implementation examples are given. Finally, the practice-oriented approach both in teaching and in learning with the methods used to carry on this approach is presented.
{"title":"Advanced practices: micro learning, practice oriented teaching and gamified learning","authors":"R. D. Díaz Redondo, A. Ktena, N. Kunicina, A. Zabasta, A. Patlins, D. Mele","doi":"10.1109/RTUCON51174.2020.9316555","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316555","url":null,"abstract":"The development, introduction and evaluation of ICT based techniques have been at the forefront of educational reform of all levels for the last two decades. Microlearning, gamified learning are two novel ICT techniques most appropriate for e-learning material and programs which attracted renewed attention because of the CoVID-19 social distancing measures. Alongside those, the more established technique of practice-oriented learning is being revisited to adapt to the new challenges. This article presents the main results and conclusions of deliverable 3.1. of the ERASMUS+ Capacity Building for Higher Education project “Electrical Energy Markets and Engineering Education (ELEMEND)” which is devoted to training partner staff in micro learning, practice oriented teaching and gamified learning. After the goals of ELEMEND are presented in the light of modern engineering education, the concept of micro learning as a training paradigm is discussed. Next, gamification technology is described in view of its role in the educational process and specific implementation examples are given. Finally, the practice-oriented approach both in teaching and in learning with the methods used to carry on this approach is presented.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115942332","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 : 2020-11-05DOI: 10.1109/RTUCON51174.2020.9316572
Yinghui Yang, I. Colak
This paper compares the performance and power losses of Silicon (Si) semiconductor based Modular Mutilevel Converter (MMC) and Silicon-Carbide (SiC) semiconductor based MMC in a 22kV-2SMVA Static Synchronous Compensator (STATCOM) application in Matlab/Simulink environment. Semiconductor switching and conduction losses are compared at different operating points for both types of the semiconductors. The study result suggests SiC semiconductor based MMC can reduce the converter power losses significantly compared to Si semiconductor based MMC.
{"title":"Performance Comparison of Si and SiC Semiconductor Based Modular Multilevel Converters for Medium Voltage STATCOM","authors":"Yinghui Yang, I. Colak","doi":"10.1109/RTUCON51174.2020.9316572","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316572","url":null,"abstract":"This paper compares the performance and power losses of Silicon (Si) semiconductor based Modular Mutilevel Converter (MMC) and Silicon-Carbide (SiC) semiconductor based MMC in a 22kV-2SMVA Static Synchronous Compensator (STATCOM) application in Matlab/Simulink environment. Semiconductor switching and conduction losses are compared at different operating points for both types of the semiconductors. The study result suggests SiC semiconductor based MMC can reduce the converter power losses significantly compared to Si semiconductor based MMC.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114708676","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：