Pub Date : 2016-10-01DOI: 10.1109/RTUCON.2016.7763134
L. Gračkova, I. Oleinikova
The case study examines the possibility of creating a park of slow and fast charging stations in the urban area of high population density. The criteria for placement of the charging stations park and their number, determined for the three transformer substations based on their utilization have been established. The studies were conducted using a Simiilink virtual model. The analysis indicated that the creation of the park service stations, as an additional load on the transformer substations does not cause an overload in the electrical network and does not affect the quality of electricity.
{"title":"Impact of electric vehicle charging on the urban distribution network","authors":"L. Gračkova, I. Oleinikova","doi":"10.1109/RTUCON.2016.7763134","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763134","url":null,"abstract":"The case study examines the possibility of creating a park of slow and fast charging stations in the urban area of high population density. The criteria for placement of the charging stations park and their number, determined for the three transformer substations based on their utilization have been established. The studies were conducted using a Simiilink virtual model. The analysis indicated that the creation of the park service stations, as an additional load on the transformer substations does not cause an overload in the electrical network and does not affect the quality of electricity.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129039521","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 : 2016-10-01DOI: 10.1109/RTUCON.2016.7763133
I. Colak, D. Kocabas
In this study, the power extraction from oscillating water column device is done by using three level active rectifier and three level inverter which is controlled by using NTV-SV-PWM method. The mid-point balancing of the DC-link is achieved by using a look-up table, aiming to improve the efficiency, the response time of the system and the quality of the power transferred to the grid.
{"title":"DC link balancing of space vector modulation controlled three-level converter for ocean wave energy conversion","authors":"I. Colak, D. Kocabas","doi":"10.1109/RTUCON.2016.7763133","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763133","url":null,"abstract":"In this study, the power extraction from oscillating water column device is done by using three level active rectifier and three level inverter which is controlled by using NTV-SV-PWM method. The mid-point balancing of the DC-link is achieved by using a look-up table, aiming to improve the efficiency, the response time of the system and the quality of the power transferred to the grid.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128916261","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 : 2016-10-01DOI: 10.1109/RTUCON.2016.7763145
I. Moshkin, A. Sauhats
The paper focuses on the possibility of optimizing the district heating supply in the market conditions with constantly changing parameters and stochastic behavior of the electricity market prices, fuel prices and weather conditions. The possibilities of independent work of companies and cooperation for more benefits are also reviewed. As possibility of distributing the additional profit in the case of coalition, the methods of the cooperative game theory are used. In this paper the authors examine and compare the options of the formation of coalitions, compare the selected alternatives and analyze the possible profits of the market participants in the case of different models of behaviour. The proposed options of solving district heating optimization problems and calculation examples are based on the current situation of the real European city.
{"title":"Solving district heating optimization problems in the market conditions","authors":"I. Moshkin, A. Sauhats","doi":"10.1109/RTUCON.2016.7763145","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763145","url":null,"abstract":"The paper focuses on the possibility of optimizing the district heating supply in the market conditions with constantly changing parameters and stochastic behavior of the electricity market prices, fuel prices and weather conditions. The possibilities of independent work of companies and cooperation for more benefits are also reviewed. As possibility of distributing the additional profit in the case of coalition, the methods of the cooperative game theory are used. In this paper the authors examine and compare the options of the formation of coalitions, compare the selected alternatives and analyze the possible profits of the market participants in the case of different models of behaviour. The proposed options of solving district heating optimization problems and calculation examples are based on the current situation of the real European city.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132627468","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 : 2016-10-01DOI: 10.1109/RTUCON.2016.7763111
G. Ertasgin, D. Whaley, W. Soong, N. Ertugrul
This paper addresses one of the critical sections of the current-source inverter, the output filter. Firstly, the background of low-pass output line filters for voltage-source inverters (VSI) and current-source inverters (CSI) are provided. Important factors such as filter resonance and damping are explained. Then four different damped CL filter circuits are discussed and the performance of the filter with a grid-connected CSI inverter is analysed. The filter normalisations for the design process are also provided. Finally, the selection of the filter parameters is examined.
{"title":"Low-pass filter design of a current-source 1-ph grid-connected PV inverter","authors":"G. Ertasgin, D. Whaley, W. Soong, N. Ertugrul","doi":"10.1109/RTUCON.2016.7763111","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763111","url":null,"abstract":"This paper addresses one of the critical sections of the current-source inverter, the output filter. Firstly, the background of low-pass output line filters for voltage-source inverters (VSI) and current-source inverters (CSI) are provided. Important factors such as filter resonance and damping are explained. Then four different damped CL filter circuits are discussed and the performance of the filter with a grid-connected CSI inverter is analysed. The filter normalisations for the design process are also provided. Finally, the selection of the filter parameters is examined.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130673125","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 : 2016-10-01DOI: 10.1109/RTUCON.2016.7763091
Aigars Vītols, I. Rankis
This paper presents analysis of heating processes of 32.3m3 room which is heated up by universal central heating boiler “Dacon - FB 36” which is equipped with experimental automatic briquettes feeding system - ABFS.
{"title":"Analysis of heating processes of 32.3m3 room — Heated up by central heating boiler equipped with automatic briquettes feeding system — ABFS","authors":"Aigars Vītols, I. Rankis","doi":"10.1109/RTUCON.2016.7763091","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763091","url":null,"abstract":"This paper presents analysis of heating processes of 32.3m<sup>3</sup> room which is heated up by universal central heating boiler “Dacon - FB 36” which is equipped with experimental automatic briquettes feeding system - ABFS.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132705141","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 : 2016-10-01DOI: 10.1109/RTUCON.2016.7763155
Edgars Sultanovs, Alyona Skorobogatjko, A. Romānovs
For many years medical specialists are trying to improve patient treatment methods to increase its speed as well as to minimize treatment process pain. Cyber-physical systems have a huge potential in healthcare for improving treatment quality and patients' assistance speed. Cyber-physical systems will help automatizing treatment process that can be realized by the continuous monitoring of each patient's health state, and if necessary, using multiple medical devices. That allows gathering information about patient's health and perform operations on patients, in order to reduce the progressions of a disease and improve patient's healing process. The aim of article is to research cyber-physical system abilities, CPS application in medicine, and develop centralized healthcare cyber-physical system architecture concept. Proposed concept will allow identifying causes of diseases, research new diseases, provide actual information about existing disease and treatment methods for clinics that are a part of centralized healthcare cyber-physical system, and, finally, automatize patients' health monitoring and remote treatment.
{"title":"Centralized healthcare cyber-physical system's architecture development","authors":"Edgars Sultanovs, Alyona Skorobogatjko, A. Romānovs","doi":"10.1109/RTUCON.2016.7763155","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763155","url":null,"abstract":"For many years medical specialists are trying to improve patient treatment methods to increase its speed as well as to minimize treatment process pain. Cyber-physical systems have a huge potential in healthcare for improving treatment quality and patients' assistance speed. Cyber-physical systems will help automatizing treatment process that can be realized by the continuous monitoring of each patient's health state, and if necessary, using multiple medical devices. That allows gathering information about patient's health and perform operations on patients, in order to reduce the progressions of a disease and improve patient's healing process. The aim of article is to research cyber-physical system abilities, CPS application in medicine, and develop centralized healthcare cyber-physical system architecture concept. Proposed concept will allow identifying causes of diseases, research new diseases, provide actual information about existing disease and treatment methods for clinics that are a part of centralized healthcare cyber-physical system, and, finally, automatize patients' health monitoring and remote treatment.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121830605","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 : 2016-10-01DOI: 10.1109/RTUCON.2016.7763096
A. Anuchin, V. Ostrirov, Yu. I. Prudnikova, M. Yakovenko, F. Briz, M. Podlesny
This paper deals with the thermal stabilization of the power devices which was implemented in the compressor drive of the subway trains. This drive operates in start/stop mode, thus the thermocycling problems in the IGBT modules can occur. The algorithm of thermal stabilization is given and tests were conducted with the real power converter. The thermal images and temperature curves show the efficiency of the thermal stabilization algorithm in comparison to an ordinary solution.
{"title":"Thermal stabilization of power devices for compressor drive with start/stop operation mode","authors":"A. Anuchin, V. Ostrirov, Yu. I. Prudnikova, M. Yakovenko, F. Briz, M. Podlesny","doi":"10.1109/RTUCON.2016.7763096","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763096","url":null,"abstract":"This paper deals with the thermal stabilization of the power devices which was implemented in the compressor drive of the subway trains. This drive operates in start/stop mode, thus the thermocycling problems in the IGBT modules can occur. The algorithm of thermal stabilization is given and tests were conducted with the real power converter. The thermal images and temperature curves show the efficiency of the thermal stabilization algorithm in comparison to an ordinary solution.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122771228","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 : 2016-10-01DOI: 10.1109/RTUCON.2016.7763143
M. Ahonen, T. Koppel
Power line communication (PLC) connects energy producers with energy consumers. In the European Union stricter guidelines are under development to limit disturbances in the 2-150 kHz frequency range, because devices utilising PLC do not work. This study measured voltage transients in 22 locations and identified sources for noise. Home environments and public buildings were measured. Measurements were conducted in the frequency range of 150 kHz-500 kHz (according to EN 55011 to EN 55022) and in the lower frequency range of 3 kHz to 95 kHz. Results indicate that voltage transients are generated mostly by switching mode power supplies, pumps, rectifiers, inverters and even low quality smart meters. Several of these devices exceeded PLC standard level, 122 dBμV. Additionally we demonstrate that basic power quality recordings do not provide enough information to mitigate PLC problems occurring within microseconds and frequency specific voltage transient measurements are needed.
{"title":"Voltage transients measurements and power line communication","authors":"M. Ahonen, T. Koppel","doi":"10.1109/RTUCON.2016.7763143","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763143","url":null,"abstract":"Power line communication (PLC) connects energy producers with energy consumers. In the European Union stricter guidelines are under development to limit disturbances in the 2-150 kHz frequency range, because devices utilising PLC do not work. This study measured voltage transients in 22 locations and identified sources for noise. Home environments and public buildings were measured. Measurements were conducted in the frequency range of 150 kHz-500 kHz (according to EN 55011 to EN 55022) and in the lower frequency range of 3 kHz to 95 kHz. Results indicate that voltage transients are generated mostly by switching mode power supplies, pumps, rectifiers, inverters and even low quality smart meters. Several of these devices exceeded PLC standard level, 122 dBμV. Additionally we demonstrate that basic power quality recordings do not provide enough information to mitigate PLC problems occurring within microseconds and frequency specific voltage transient measurements are needed.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123455995","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 : 2016-10-01DOI: 10.1109/RTUCON.2016.7763090
B. V. Ivanov, A. Smirnov, S. Shevchenko, A. Afanasyev, V. Ilyin
We discuss the results of the design and examination of high-voltage superfast opening switches - the drift step recovery diodes (DSRD) based on silicon carbide. The fabricated diodes have p+-p-n+ structure with relatively thick low-doped base region, which allows switching voltage of 1.8 kV in less than 500 ps. With 4H-SiC DSRD operating as an opening switch in an ultrashort pulse generator circuit in pulse repetition mode, maximal pulse repetition frequency is 500 kHz in continuous operation mode and 10 MHz in burst mode.
{"title":"High voltage subnanosecond silicon carbide opening switch","authors":"B. V. Ivanov, A. Smirnov, S. Shevchenko, A. Afanasyev, V. Ilyin","doi":"10.1109/RTUCON.2016.7763090","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763090","url":null,"abstract":"We discuss the results of the design and examination of high-voltage superfast opening switches - the drift step recovery diodes (DSRD) based on silicon carbide. The fabricated diodes have p+-p-n+ structure with relatively thick low-doped base region, which allows switching voltage of 1.8 kV in less than 500 ps. With 4H-SiC DSRD operating as an opening switch in an ultrashort pulse generator circuit in pulse repetition mode, maximal pulse repetition frequency is 500 kHz in continuous operation mode and 10 MHz in burst mode.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114463733","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 : 2016-10-01DOI: 10.1109/RTUCON.2016.7763075
O. Vozisova, D. Bliznyuk, A. Egorov, S. Eroshenko, D. Snegirev
In our days, “Electric Power System Kit” is the only producer of power and secondary equipment scale models. The production laboratory is established on the basis of ≪Automated Power Systems≫ department, Ural Power Engineering Institute, UrFU. In the laboratory, the following processes are organized: designing, 3D printing of models and 3D laser scanning of power equipment installed at substations. Laser scanning of power facilities allows to achieve the priority goal, namely to obtain three-dimensional primary digital CAD-models and drawings of high accuracy, which are necessary in order to meet the challenges of designing, construction, quality control, diagnostics, and other engineering tasks. Applied to electric power system kit, laser scanning is used to improve the quality of basic data needed for the creation of 3D drawings of equipment and creation of printed models on the basis of CAD-scale models. At the present moment, the problem set is to accomplish the reverse engineering of 110/20 kV step-down transformer, using up-to-date methods of 3D laser scanning. On the basis of the data obtained, the transformer CAD-model of high accuracy is crested in accordance with the initial dimensions.
{"title":"The laser scanning application for power systems equipment engineering reverse","authors":"O. Vozisova, D. Bliznyuk, A. Egorov, S. Eroshenko, D. Snegirev","doi":"10.1109/RTUCON.2016.7763075","DOIUrl":"https://doi.org/10.1109/RTUCON.2016.7763075","url":null,"abstract":"In our days, “Electric Power System Kit” is the only producer of power and secondary equipment scale models. The production laboratory is established on the basis of ≪Automated Power Systems≫ department, Ural Power Engineering Institute, UrFU. In the laboratory, the following processes are organized: designing, 3D printing of models and 3D laser scanning of power equipment installed at substations. Laser scanning of power facilities allows to achieve the priority goal, namely to obtain three-dimensional primary digital CAD-models and drawings of high accuracy, which are necessary in order to meet the challenges of designing, construction, quality control, diagnostics, and other engineering tasks. Applied to electric power system kit, laser scanning is used to improve the quality of basic data needed for the creation of 3D drawings of equipment and creation of printed models on the basis of CAD-scale models. At the present moment, the problem set is to accomplish the reverse engineering of 110/20 kV step-down transformer, using up-to-date methods of 3D laser scanning. On the basis of the data obtained, the transformer CAD-model of high accuracy is crested in accordance with the initial dimensions.","PeriodicalId":102691,"journal":{"name":"2016 57th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127990084","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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