2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)最新文献_第3页

Expedience and Possibilities of Implementation of HV Single-transformer Substations 高压单变变电站实施的便利性和可能性

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659896

J. Survilo, Lubova Petriclienko

{"title":"Expedience and Possibilities of Implementation of HV Single-transformer Substations","authors":"J. Survilo, Lubova Petriclienko","doi":"10.1109/RTUCON.2018.8659896","DOIUrl":"https://doi.org/10.1109/RTUCON.2018.8659896","url":null,"abstract":"In a rural terrain, fragmented economically insignificant farms are becoming less. Big farms predominate over large distances with a considerable consumption of electricity. In towns and villages, the population decreases. At step down substations, two 110 kV transformers is an excess because one of them predominantly is idle. Although with a certain load duration curve, power losses in multi-transformer substation may be less, however, all the same, life cycle cost for multi-transformer substations is more. To provide sufficient for such local power supply reliability, sometimes it is possible reserving the MV secondary side of these transformers from neighboring networks of the same voltage. But for this it is necessary to increase the primary voltage of the distribution network from 20 kV to 33 kV, and among all consumers of the substation supply zone, to identify those who, without much harm, can endure without electricity a couple of hours but in the power system to keep the spare transformer on move. However the option of 33 kV can pay off only by total renovation of transformer’s park of some part or of entire power system.","PeriodicalId":192943,"journal":{"name":"2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114682457","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

Research of Shark Concept Using 3D Finite Element Analysis 基于三维有限元分析的鲨鱼概念研究

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659816

K. Sejejs, E. Kamoliņš, K. Gulbis

{"title":"Research of Shark Concept Using 3D Finite Element Analysis","authors":"K. Sejejs, E. Kamoliņš, K. Gulbis","doi":"10.1109/RTUCON.2018.8659816","DOIUrl":"https://doi.org/10.1109/RTUCON.2018.8659816","url":null,"abstract":"Due to their comparatively higher efficiency and power density, permanent magnet synchronous machines (PMSM) is the most popular type of the electric machines used for the traction systems in electric vehicles (EV). Considering the increasing cost of rare earth materials and other disadvantages of PMSMs, it is necessary to develop reluctance machines needed for the usage in the EVs. In order to increase the competitiveness of the reluctance machines, it is important to develop solutions that would increase their torque density, overall efficiency, and eliminate disadvantages such as torque ripple, which is very undesirable in the field of EVs. One of the solutions is in the development of the longitudinal cross-section of the electric machine tooth zone - the proposed use of the Shark concept. In this paper, several Shark profiles (air gap shapes) are examined. Results of experiments conducted of three-dimensional (3D) magnetic field calculations using finite element analysis (FEA) have been discussed and the efficiency and behaviour of different Shark profiles have been compared. The results of experiments show that the Shark concept can be a perspective solution for the improvement of the reluctance machines, thus making them more competitive in the field of the traction systems of EVs.","PeriodicalId":192943,"journal":{"name":"2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114496310","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

Calculation of the relay protection and automation failure risk with consideration of systemic factors 考虑系统因素的继电保护及自动化失效风险计算

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659858

Evgenii L. Kokorin, S. Dmitriev

引用次数: 0

The resilience of automatic wireless meters reading for distribution networks in smart city model 智慧城市模式下配电网无线自动抄表的弹性

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659889

N. Kunicina, A. Zabasta, R. Brūzgienė, J. Caiko, A. Patlins

{"title":"The resilience of automatic wireless meters reading for distribution networks in smart city model","authors":"N. Kunicina, A. Zabasta, R. Brūzgienė, J. Caiko, A. Patlins","doi":"10.1109/RTUCON.2018.8659889","DOIUrl":"https://doi.org/10.1109/RTUCON.2018.8659889","url":null,"abstract":"The power supply for autonomous wireless sensor network nodes is crucial reliability issue for stability of the data transmission solutions. Development of methods for recognition of failures in distribution systems, like technologies for construction of measuring instruments and identifying of leakages, is based on wave principles. Control of traffic flows on the basis of graph theory, cybersecurity of infrastructure systems, models, methods and technologies for the creation of wireless networks for the translation and processing of information, ensures reliable power supply. The development of backup solution, to recover in case, if external electrical power fails, and development of nodes, which could integrate several power supply solutions, are described in this paper. The proposed node needs to be able to send notifications to the utility, demanding the use of backup energy strategies. The authors of the research offered an approach that can help to use pseudo autonomous system power supply scheme with PV panels as alternative power source for WSN nodes in particular irradiation conditions. Based on the test results, an integrated power control module parameters are developed. The novelty of the research is an approach that includes different power supply solutions in order to ensure defined signal transition quality parameters for maximum effectiveness of WSN nodes power feeding.","PeriodicalId":192943,"journal":{"name":"2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130133167","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

Features of implementing multi-parameter islanding protection in power districts with distributed generation units 分布式发电机组区实施多参数孤岛保护的特点

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659857

S. Eroshenko, P. Ilyushin

引用次数: 14

A Special Protection Scheme for Transmission Lines based on Wide Area Monitoring System 基于广域监控系统的输电线路特殊保护方案

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659836

Shaik Affijulla, P. Tripathy

{"title":"A Special Protection Scheme for Transmission Lines based on Wide Area Monitoring System","authors":"Shaik Affijulla, P. Tripathy","doi":"10.1109/RTUCON.2018.8659836","DOIUrl":"https://doi.org/10.1109/RTUCON.2018.8659836","url":null,"abstract":"The utilization of phasor measurement units (PMUs) with protective relays is rapidly increasing in the existing power transmission networks for reliable monitoring, control and protection of complex power system. Thus, it is feasible to develop an effective primary and backup protection scheme for transmission lines by utilizing the information from PMU-cum-Relays. Regarding the conventional relays, it is observed that its operation is severely affected with the presence of events like power swings, load encroachment etc. In this paper, authors propose to utilize wide area monitoring system for backup protection of transmission lines using proposed phasor data concentrator (PDC) index, which is calculated at PDC using the measured frequencies from different PMUs. As the backup protection scheme is centrally executed at PDC, the proposed scheme do not require the coordination time, but do involve communication delays associated with the network. The effectiveness of proposed special protection scheme has been tested and validated on reduced NEREB 29-bus Indian power system with distributed generation sources using SINCAL and MATLAB softwares. The simulation results reveal that the proposed special protection scheme can enhance the protection strategy of transmission lines in smart electric grid.","PeriodicalId":192943,"journal":{"name":"2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122391609","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

Determination of the best load parameters for productive operation of PV panels of series FS-100M and FS-110P for sustainable energy efficient road pavement 可持续节能路面用FS-100M和FS-110P系列光伏板生产运行最佳载荷参数的确定

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659829

A. Paulus, S. Arhun, A. Hnatov, O. Dziubenko, S. Ponikarovska

{"title":"Determination of the best load parameters for productive operation of PV panels of series FS-100M and FS-110P for sustainable energy efficient road pavement","authors":"A. Paulus, S. Arhun, A. Hnatov, O. Dziubenko, S. Ponikarovska","doi":"10.1109/RTUCON.2018.8659829","DOIUrl":"https://doi.org/10.1109/RTUCON.2018.8659829","url":null,"abstract":"Current article concentrates on determination of the best, in terms of the generated electric energy, value of load resistance for mono-crystalline and polycrystaUine PV panels, which corresponds to the criterion of transmitting the maximum power to the load. The existing types of silicon PV panels are analyzed, their classification ta Jven. The best active load parameter for mono-crystalline and polycrystaUine PV panels, which corresponds to the criterion of transmitting the maximum power to the load, has been determined. The results of experimental studies are presented in the form of volt-ampere characteristics and dependence of the PV panels' power on the load current. Results give the possibility to outline a new approach application of green energy, using innovative technologies- sustainable road-pavemenT for green energy production. The solution of sustainable road-pavement enables to produce green energy for additional lightening of the streets using considerable LED technologies with acceptable monitoring. Authors performed current research also to mitiate debates in scientific world and society about significance of such kind of solutions for sustainable development.","PeriodicalId":192943,"journal":{"name":"2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126683972","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: 21

Research the phenomenon of motivation, towards to science, through effective teaching, learning, research and scientific writing as the approach for improvement of electrical and power engineering education 研究动机现象，走向科学，通过有效的教学，学习，研究和科学写作作为改进电气和动力工程教育的方法

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659815

A. Patlins

{"title":"Research the phenomenon of motivation, towards to science, through effective teaching, learning, research and scientific writing as the approach for improvement of electrical and power engineering education","authors":"A. Patlins","doi":"10.1109/RTUCON.2018.8659815","DOIUrl":"https://doi.org/10.1109/RTUCON.2018.8659815","url":null,"abstract":"the phenomenon of motivation has been researched in current paper. It outlines the significance of motivation towards to science, through effective teaching, learning, research and scientific writing as the approach for electrical and power engineering education. This paper examines how to solve the problem of de-motivation of students, researchers and administrative stuff of the university. The aim of this study is to collect, analyze and obtain the information about motivation to stimulate effective teaching, learning, research and scientific writing to increase the level of electrical and power engineering education. Research will be based on worlds literature, scientific publications, own experience, experience obtained by Kaunas University of Technology and experience of international experts. Author has performed this research also to initiate debates in scientific world and society about significance of motivation for sustainable development of scientific institutes, universities and all the education system.","PeriodicalId":192943,"journal":{"name":"2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133690057","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: 8

Gain Scheduling Feedback Loop Compensator for Boost Converter 升压变换器增益调度反馈环路补偿器

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659811

P. Suskis

{"title":"Gain Scheduling Feedback Loop Compensator for Boost Converter","authors":"P. Suskis","doi":"10.1109/RTUCON.2018.8659811","DOIUrl":"https://doi.org/10.1109/RTUCON.2018.8659811","url":null,"abstract":"Classic feedback loop with two contours of control: currents –fast and voltage-slow is widely spread. On one hand it is a well-known approach easy to be analyzed on the other hand it is not sufficient to cover all operation modes range that is required for operation in energy storage applications. PI-regulator of current loop with fixed parameters has similar results for different currents. Voltage loop compensation in case of different operation currents have to be compensated in more sophisticated way. PI-controller of voltage loop is handling well only in limited area of whole current range. Therefore voltage control system has to be designed with dynamically changed coefficients. Therefore a gain scheduling technique is applied. A model with time-variable load has been simulated with gain scheduling feedback loop and compared to control systems with fixed coefficients. The discussion is concluded by following: the current control loop may be designed with fixed coefficients while voltage control loop over the mentioned current control loop suggested being gain-scheduled one. A hardware redesign might take a place to make the control design easier in case of over-sizing of capacitor and inductor as ones are main Q-parameter defining elements. Despites the advances in DSP and control MCU in recent years classic approach and control techniques still not lose their actuality.","PeriodicalId":192943,"journal":{"name":"2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"26 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130719632","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

Motivating Intuitive Understanding of the Switched Reluctance Machine in the Education of Undergraduate Students 在大学生教育中激发对开关磁阻机的直观理解

2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2018-11-01 DOI: 10.1109/RTUCON.2018.8659870

Manuel Bindzus, M. Bragard

引用次数: 0