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2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)最新文献

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Electrification and Decarbonization Potential Assessment of Latvian Dwellings 拉脱维亚住宅的电气化和脱碳潜力评估
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316549
J. Teremranova, A. Sauhats
{"title":"Electrification and Decarbonization Potential Assessment of Latvian Dwellings","authors":"J. Teremranova, A. Sauhats","doi":"10.1109/RTUCON51174.2020.9316549","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316549","url":null,"abstract":"The electrification of urban infrastructure, and in particular households, has been approved as one of the effective decarbonization measures. Reducing CO2emissions has become a requirement of the time and is also considered by each country separately within the existing capabilities. In order to identify the most acceptable solution for Latvia on this issue, we calculated 6 scenarios of energy savings when gas stoves were substituted with electric and induction ones. Additionally, the costs of electrifying stoves vs cars for Latvian households was compared. Technical assessment of decarbonization potential revealed that the most adaptive way for CO2reduction in households is to concentrate efforts first on electrification of stoves in Latvian kitchens; and most preferable first step - to begin with equipment that uses LPG. This helps to implement NECP requirements concerning household sector decarbonization in the most effective and frugal way.","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":"115210409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Generator cooperation in district heating market considering open electricity market 考虑开放电力市场的区域供热市场发电机组合作
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316566
R. Oļekšijs, A. Sauhats, B. Olekshii
{"title":"Generator cooperation in district heating market considering open electricity market","authors":"R. Oļekšijs, A. Sauhats, B. Olekshii","doi":"10.1109/RTUCON51174.2020.9316566","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316566","url":null,"abstract":"this paper analyzes possibilities to form coalition of several heat energy providers to participate in district heating market considering open electricity market. Cooperation would allow to better dispatch existing energy sources and ensure higher total profit for participants. To optimize coalition operation mixed integer linear programming is used, additional profit is shared between parties according to Shapley value. Case study based on historical hourly data is provided.","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":"116092879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reliability of relay protection and automatics algorithms for intermittent ground faults in 6–35 kV networks 6 - 35kv电网间歇接地故障继电保护可靠性及自动算法研究
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316582
A. Naumov, Alexander Kivircik, S. Popov, A. Bogdanov
{"title":"Reliability of relay protection and automatics algorithms for intermittent ground faults in 6–35 kV networks","authors":"A. Naumov, Alexander Kivircik, S. Popov, A. Bogdanov","doi":"10.1109/RTUCON51174.2020.9316582","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316582","url":null,"abstract":"Intermittent arc faults make about 60% out of all earth faults in 6–35 kV grids [1]. Modern relay-protection and automatics devices not always able to process properly current, voltage signals, and to ensure reliable operation in all possible situations (inadequate reaction of protection algorithms, errors in their functioning) due to specific features of this fault, such as: short period of existence, about dozens of milliseconds [1], high-frequency transient processes, nonconstant equivalent resistance.","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":"124077376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Prototyping process in education and science 教育和科学的原型制作过程
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316550
N. Kunicina, A. Zabasta, A. Patlins, I. Bilić, Jānis Pekša
{"title":"Prototyping process in education and science","authors":"N. Kunicina, A. Zabasta, A. Patlins, I. Bilić, Jānis Pekša","doi":"10.1109/RTUCON51174.2020.9316550","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316550","url":null,"abstract":"Current article shows the prototyping process, types of prototyping models, best practices of prototyping, limitations of prototypes, advantages, and disadvantages of prototyping, as well as differences between software and hardware prototyping. Prototyping infrastructures are also shown here. In this case, three examples from Riga Technical University are offered. This publication demonstrates the authors' opinions only, and it cannot be regarded as the European Union's official position. The paper is developed in a frame of the project “ERASMUS+ Capacity-building in the Field of Higher Education 2019 Call for Proposals. Development of practically-oriented student-centered education in the field of modeling of Cyber-Physical Systems, CybPhys. 609557-EPP-1-2019-1-LV-EPPKA2-CBHE-JP - ERASMUS+ CBHE. The article is also devised for students of applied physic and electrical engineering specialties. The article can be useful for students and professionals focusing on innovation management issues.","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":"121762980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The Role of Electrical Vehicles for Power Quality and Security during Outages in the Distribution Grid 电动汽车对配电网停电时电能质量和安全的作用
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316604
V. Astapov, Sambeet Mishra, I. Palu, Sergei Trashchenkov
{"title":"The Role of Electrical Vehicles for Power Quality and Security during Outages in the Distribution Grid","authors":"V. Astapov, Sambeet Mishra, I. Palu, Sergei Trashchenkov","doi":"10.1109/RTUCON51174.2020.9316604","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316604","url":null,"abstract":"The power grid is facing challenges to ensure the power quality and security while new and distributed generation units are increasing in the power grid. The share of electrical vehicles (EVs) are increasing in recent period to reduce the emissions and efficient use of resources. The EVs can play a sustainable role in grid stability through power infeed to the grid and act as a storage unit. However, the role of EVs in outage scenarios requires more investigations to ensure the quality and security prospective. This paper sets out to outline the key factors and their inter-dependencies during a power outage for a distribution grid with EVs. For this investigation, various grid simulations are conducted, and the results are 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":"131073332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Matrix-topological Calculation of Consumption and Distribution of Electric Energy in the Electric Power System Using a Filtered Dataset 基于滤波数据集的电力系统电能消耗与分配的矩阵拓扑计算
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316622
A. Semenov, A. Petrochenkov, A. Romodin, A. Leysle
{"title":"Matrix-topological Calculation of Consumption and Distribution of Electric Energy in the Electric Power System Using a Filtered Dataset","authors":"A. Semenov, A. Petrochenkov, A. Romodin, A. Leysle","doi":"10.1109/RTUCON51174.2020.9316622","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316622","url":null,"abstract":"Nowadays, the complex of equipment for the electric power system of an enterprise is a dynamic system. This is due to changes both in the operating mode of the equipment, and changes in the power supply scheme itself. To consider constantly changing parameters, monitoring systems are used that form unfiltered datasets with sets of information that changes in the time series. Due to the fact that datasets are formed constantly and at different objects of the power supply system, the flow of such information can already be used for short-term forecasting or creating a mathematical model of consumption and distribution of electric energy throughout the field. Under such conditions, the most convenient way of calculating, knowing the main parameters of the power system, is the matrix-topological method.","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":"133398501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Variable Frequency Control method of Boost Converter Operating in Boundary Conduction Mode 边界导通模式下升压变换器的变频控制方法
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316620
Solumaz Noruzi, H. Ghoreishy, Ahmad Ale Ahmad, F. Tahami, Roya Ahmadiahangar, A. Rosin
{"title":"Variable Frequency Control method of Boost Converter Operating in Boundary Conduction Mode","authors":"Solumaz Noruzi, H. Ghoreishy, Ahmad Ale Ahmad, F. Tahami, Roya Ahmadiahangar, A. Rosin","doi":"10.1109/RTUCON51174.2020.9316620","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316620","url":null,"abstract":"In this paper, a new high-frequency method for controlling boost converter in Boundary Conduction Mode (BCM) is proposed. By changing the switching frequency in a specified range, the intended method maintains a boost converter in BCM despite input voltage and load changes. This high-frequency method is implemented in an analog form which is more cost-effective in comparison with digital implementation. In addition, GaN switches are employed instead of silicon ones, which have lower losses at high frequencies. Simulation and experimental results obtained from applying the proposed method on a bi-directional boost converter is indicative of the efficiency of the proposed strategy.","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":"126581139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Control Algorithms Based on Load Angle and Phase Current Difference for Traction Switched Reluctance Motor 基于负载角和相电流差的牵引开关磁阻电机控制算法
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316599
K. Sejejs, E. Kamoliņš, M. Gorobetz, A. Potapovs
{"title":"Control Algorithms Based on Load Angle and Phase Current Difference for Traction Switched Reluctance Motor","authors":"K. Sejejs, E. Kamoliņš, M. Gorobetz, A. Potapovs","doi":"10.1109/RTUCON51174.2020.9316599","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316599","url":null,"abstract":"The goal of this research is to propose a simple and inexpensive solution to increase the reliability of the electric vehicle with traction switched reluctance motor (SRM) by the modification of control algorithm that is based not only on rotary encoder data but also on single-phase current. The paper presents the research of traction SRM, describes the developed control algorithms based on load angle detection by a rotary encoder and proposes a novel modified algorithm based on the difference of load-dependent variable phase current fragment. Test bench with SRM drive is developed and developed control algorithms are implemented in MCU software. Experimental results show the workability of the developed algorithms proving the opportunity to use single-phase current sensor for control of SRM with variable load.","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":"114669331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fuzzy Logic Current Balancing Controller Implementation in an Automotive Multi-Phase DC Converter with Coupled Inductors 模糊逻辑电流平衡控制器在电感耦合汽车多相直流变换器中的实现
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316473
A. Bogdanovs, O. Krievs, L. Ribickis, J. Pforr
{"title":"Fuzzy Logic Current Balancing Controller Implementation in an Automotive Multi-Phase DC Converter with Coupled Inductors","authors":"A. Bogdanovs, O. Krievs, L. Ribickis, J. Pforr","doi":"10.1109/RTUCON51174.2020.9316473","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316473","url":null,"abstract":"This paper proposes an optimized current balancing controller for automotive multi-phase DC converter with coupled inductors. By implementing a fuzzy logic controller, an optimal steady-state and enhanced transient behavior of converter phase current sharing has been achieved to avoid coupled inductor saturation. The proposed controller considers converter load change to be compatible with single DC link current sensor measurement and phase current reconstruction technics. The described control method performance is verified by simulation and experimental results on a 5-phase converter with coupled inductors and distributed DC link capacitors using indirect current measurement technique with one sensor.","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":"114946599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Power Loss Model and Efficiency Analysis of the Quasi-Z-Source Isolated Buck-Boost Converter with Wide Input Voltage and Load Range 宽输入电压和负载范围准z源隔离降压-升压变换器的功率损耗模型和效率分析
2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316587
H. Maheri, D. Vinnikov, A. Chub, V. Sidorov
{"title":"Power Loss Model and Efficiency Analysis of the Quasi-Z-Source Isolated Buck-Boost Converter with Wide Input Voltage and Load Range","authors":"H. Maheri, D. Vinnikov, A. Chub, V. Sidorov","doi":"10.1109/RTUCON51174.2020.9316587","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316587","url":null,"abstract":"The galvanically isolated full-bridge series resonant quasi-Z-source dc-dc converter is studied. It features two main operating modes, buck and boost, which correspond to the converter operation above and below the nominal voltage, respectively. Power loss models are developed for both operating modes to identify the mechanism of losses. They consider switching and conduction losses in the input-side switches, core and windings losses in the transformer and the quasi-Z-source inductor, and conduction losses in the voltage doubler rectifier diodes. The developed loss models are verified at three input voltages using a 300 W experimental prototype. The inaccuracy of the developed models does not exceed 2 W, which is acceptable in comparison with the maximum estimated power loss of over 12 W. The experimental and the estimated efficiency follow the same trend. Also, the estimated efficiency exceeds the measured by no more than 1% at full power.","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":"128674160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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