2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)最新文献

{"title":"Cable Line Parameters Calculation of 6-10 kV Networks with the Usage of Comsol Multiphysics Software","authors":"Y. Kutumov, T. Shadrikova, V. Shuin","doi":"10.1109/RPA47751.2019.8958097","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958097","url":null,"abstract":"At the present time in Russia most of electrical energy is distributed to consumers via 6-10 kV cable networks. Accidents in distribution cable networks of 6-10 kV are almost 70% of all industrial and domestic consumers electric power supply interruptions. As rule, these accidents are accompanied by significant economic losses [2]. Cable networks of 6-10 kV include approximately 95% of three-core cables with impregnated-paper insulation (IPI) [3]. One of the major causes of accidents is obsolescence and physical deterioration of cable lines with IPI, which is equal to 40-90% [1], [4]. In view of this, increasing of distribution cable networks operational integrity is one of the primary factors of the power supply reliability improvement.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115156108","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}

{"title":"Analysis of high-amplitude low-frequency oscillations using data from phasor measurement units","authors":"A. Zykina, T. Klimova, D. M. Dubinin","doi":"10.1109/RPA47751.2019.8958027","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958027","url":null,"abstract":"Low-frequency oscillations (LFO) of power are constantly present in the power system, while an increase in the amplitude of the LFO significantly reduces the reliability of its operation. The presence of high-amplitude LFO in the parameters of the electric mode can significantly reduce the permissible power flows, lead to a decrease in the margin of static stability, and under adverse circumstances, to a violation of static stability and the separation of the power system into isolated parts. For this reason, in many dispatch centers around the world, continuous monitoring of the frequency, amplitude, phase and damping coefficient of low-frequency oscillations of the frequency and power in the power system in real time using data from phasor measurement units (further in text - PMUs) is organized. Actual information on the level of LFO in the power system will allow to control the occurrence of high-amplitude synchronous swings of active power in the power system for their timely elimination and to control the violation of stability.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121737643","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}

{"title":"Determination of types of disturbances and asymmetries in the electric network using PMU measurements","authors":"A. Elizarova, I.S. Zapasova, T. Klimova","doi":"10.1109/RPA47751.2019.8958091","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958091","url":null,"abstract":"The identification of disturbances and asymmetries that occur in the network for a number of different reasons are important parts of operational-dispatching management. Accurate and timely characterization of disturbances occurring in the power system will improve the quality of power system management. In turn, early detection of abnormal operating conditions is necessary to maintain normal operation of the intact part of the power system, since the conditions in question lead to a voltage, current and frequency deviation, which may cause a loss of stability of the power system and damages of equipment and lines. In this paper, data from phasor measurement units (PMU) obtained in real time are used for solving the considered problem. This allows accelerating the detection of abnormal operating conditions and disturbance analysis by determining the type of disturbance / type of fault and showing the obtained results.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128015441","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}

{"title":"Signal recovery method to increase the performance of digital relay protection","authors":"P.A. Zvadal, D.S. Tuchinal, T.V. Strebkoval, A. Mironov","doi":"10.1109/RPA47751.2019.8957867","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8957867","url":null,"abstract":"This article is devoted to the issues of increasing the sensitivity and speed of digital relay protection. An algorithm for digital processing of a distorted current signal and restoration of an equivalent value according to the current value with the subsequent operation of the trigger body of digital relay protection was proposed. A practical experiment with the saturation of the current transformer (CT) magnetic system was carried out and proposed algorithm with a subsequent assessment of the sensitivity and potential speed was applied.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128425866","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}

{"title":"Analysis and Implementation Of Parallel Redundancy Protocol Iec 62439-3 With The Use Of DPDK Framework","authors":"E. Voloshin, A. Ryzhkov, S. Usachev, A. Ententeev","doi":"10.1109/RPA47751.2019.8958093","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958093","url":null,"abstract":"This article provided information on the parallel redundancy protocol IEC 62439-3. Possible platform solutions with the positive and negative sides are considered. The main elements of the solution based on the DPDK framework and the load distribution on the processors using a multiprocessor solution are described.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121086330","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}

{"title":"Identification Parameters Of Equivalent Using PMU For Developing Adaptive Pacs For Distribution Networks With Electricity Sources","authors":"D. Degtyarev, A. Voloshin, A. Kovalenko, D.M. Biserov, V.S. Volnyy, S. A. Danilov","doi":"10.1109/RPA47751.2019.8958427","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958427","url":null,"abstract":"Today, there is a tendency to introduce distributed generation, including an increase in the share of renewable energy sources. A significant amount of distributed generation leads to the inefficiency of the traditional approach to calculating the parameters of relay protection operation (offline), and as a result, can lead to improper relay protection and reduce the reliability of power supply.A significant drawback of the existing approach to the calculation of the trigger parameters is the representation of the power system in two modes: maximum and minimum modes.In the conditions of rapidly changing modes of generating electricity and generating loads, which depend, among other things, on weather conditions, in distribution networks with a high proportion of distributed generation, it is necessary to calculate and adjust the relay protection and automation parameters according to the current mode.To solve the problems of adaptability trigger parameters of relay protection in accordance with the current mode, it is proposed to create and maintain up to date a mathematical model of the electrical network, the electrical equipment of which is protected (hereinafter referred to as the internal network). To create an accurate current mathematical model of the electrical network, it is proposed to use the current equivalent of the external power system. Since the configuration and parameters of the external power system may not be known, it is proposed to synthesize its topology. It is assumed that the number of communication points (boundary points), as well as communication elements between these points (transformers, autotransformers and power lines), the parameters of which are known to us. The article proposes to represent the equivalent of an external energy system in the form of a polygon whose vertices are interconnected and communication lines with the internal system depart from the vertices. To identify the parameters in the work, it is proposed to use analytical and optimization methods.As input information, currents and voltages taken by PMU devices are used. It is proposed to use the Matlab software package, in particular, Simulink, as a modeling environment for an equivalent model. Certain parameters of the external equivalent must correspond to the real mode of the distribution network at the considered communication points in emergency and normal modes.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127144540","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}

{"title":"Machine Learning Based Online Estimation of Power Plant Participation Factors for Automatic Generation Control","authors":"E. Tsydenov, A. V. Prokhorov, P. Khaustov","doi":"10.1109/RPA47751.2019.8958172","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958172","url":null,"abstract":"Despite of fast going integration of information technologies into power systems and resulting emergence of more efficient, faster and accurate automatic tools for analysis and control, still there are many tasks that require involvement and rely on the experience of the dispatching personnel.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127404411","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}

{"title":"Intelligent Consumers Device and Cybersecurity of Load Management in Microgrids","authors":"V. Karpenko, S. Vasilev, A.P. Boltunov, E. Voloshin, A. Voloshin","doi":"10.1109/RPA47751.2019.8958376","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958376","url":null,"abstract":"The digitalization of the electric power industry and the development of territories isolated from the unified energy system are priorities in the development of the energy sector. Thanks to innovative solutions and digital technologies, it becomes possible to make more effective managing and monitoring. Such solution is IoT platform with intelligent control system implemented by software.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124308819","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}

{"title":"Automatic Distributed Control System Of Topology Reconfiguration","authors":"E. Voloshin, A. Voloshin, E. I. Rogozinnikov, A.D. Prikhodko","doi":"10.1109/RPA47751.2019.8958164","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958164","url":null,"abstract":"During recent years, we have been able to note a tendency to increase the share of distributed generation in distribution networks. There are many reasons of distributed generation installingsuch as reliability increasing of power supply by using fuel generatorss a reserve power source) or getting cheap and clean energy from renewable energy sources [1]. Meanwhile, these activities are the reason of changes in grid operation mode. It leads to traditional algorithms of protection, automation and control systems may work incorrectly in set of modes. However, the use of these power sources opens up new opportunities in terms of power grid control.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127214061","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}

{"title":"Overhead Line Parameter Estimation Through Synchrophasor Data In Near Real-Time","authors":"I. Ivanov, D. Dubinin, A. Zhukov","doi":"10.1109/RPA47751.2019.8958451","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958451","url":null,"abstract":"The focus of this paper is on the verification of positive and zero sequence transmission line parameters through synchronized current and voltage phasor measurements on both line ends. An algorithm with phase-mode transformations developed earlier for a transposed line is utilized to reveal the influence of biased errors in synchrophasor data on the computed line parameter estimates. The analysis is carried out for both transposed and untransposed line models. The measurement errors are shown to have a strong influence on the algorithm outcome. A new line parameter estimation method exploiting the linear least squares technique is developed and tested out. The advantages of this new approach for positive sequence line parameter estimation are clearly shown. The key part of the paper is devoted to the results of a few tests with a black box modeling approach: real synchrophasors sourced from phasor measurement units on both line ends are taken to calculate the positive sequence line parameters. The series inductance and shunt capacitance are shown to have been estimated accurately, with the errors not exceeding 4% most of the time.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130847706","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}