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

{"title":"A Development of Shunt Reactor Controlled Energizing Theory","authors":"M. Aleksandrova, V. Naumov, V. Antonov, N. Ivanov","doi":"10.1109/RPA47751.2019.8958014","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958014","url":null,"abstract":"The uncontrolled energizing of shunt reactors is accompanied by appearance of a significant DC-component in current, leading to saturation of power and instrument transformers in adjacent network [1], [2]. DC-component causes high inrush current that have an electrodynamic impact on power network equipment [3]. In order to prevent these negative consequences, controlled switching devices providing reactor optimal energizing instant are used.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"1 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":"129398653","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":"Deep Learning in Relay Protection of Digital Power Industry","authors":"D. Stepanova, V. Naumov, V. Antonov","doi":"10.1109/RPA47751.2019.8958378","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958378","url":null,"abstract":"Although modern relay protection exhibits all properties of an intelligent system, it has not yet fully acquired abilities to learn, adapt and recognize the modes of the protected electrical network. To give it these advantages, it is necessary to solve the central problem which is to distinguish the areas controlled by the protection of the electrical network modes parameters. In relay protection all modes of network are divided into watched and alternative. In the first mode, the protection should be tripped, and in the second - the tripping is strictly prohibited. The problem of ensuring selectivity of protection can be considered at the rate of process as the establishment of belonging of the arriving data of an electrical network mode to a certain class in space of controlled parameters, i.e. having determined them to a class of the watched or alternative modes. Traditional methods of relay protection learning are based on the application of the characteristics of operation differentiating the watched and alternative modes, thereby revealing some similarities with elements of the theory of artificial intelligence. At the same time the problem of finding acceptable operation border is solved with grace by methods of machine learning. Despite external similarity of schemes of algorithms, their main difference consists in a way of a task of characteristic of operation of protection. In traditional relay protection characteristic of operation is stored in the permanent memory, and in the protection with artificial intelligence - in the rewritable memory and is a part of neurons. The paper presents a solution to the problem of differentiation of the electrical network modes on the basis of deep learning, considering the problem of formation of the tripping areas, for example, resistance relays as a definition of belonging to the relay measurements to certain classes in the space of controlled parameters. Algorithms of machine learning have universality, efficiency and allow approaching scrupulously the choice of characteristics of operation, using all the arsenal of intelligent classifier. As a result, intellectual relay protection gains ability to differentiate difficult untied areas of precedents (the modes of an electrical network) containing enclaves of the alternative modes. Besides, intellectual relay protection has a possibility to correct characteristic of operation in the conditions of its operation by training of neural network at new precedents. However, for this purpose the operational personnel have to give signs to new data, turning them into precedents. Thus, intellectual relay protection has ability to adapt to changes of an electrical network. The paper covers mathematical foundations of the precedents sets separation of different modes of the electrical network on the example of the intelligent resistance relay using a support vector machine method. The advantage of the method consists in using the uniform principles to classify","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"27 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":"117126603","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":"Software Package For Improving Financial And Technological Performance Of Microgrid Networks","authors":"S. Usachev, A. Voloshin, A. Ententeev, B. Maksudov, R. Maksimov, S. Livshits","doi":"10.1109/RPA47751.2019.8958213","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958213","url":null,"abstract":"In modern world, the use of the most advanced digital technologies in any industry and business directly effect on financial and technological indicators, in other words, the more advanced digital technologies are used to solve various tasks, the greater the profit or benefits that can be gained. The electric power industry is not an exception. Nowadays, more and more of the electric power sector is moving from large networks to small, often isolated, so-called Microgrid. Such networks generally have generation based on renewable energy sources (RE): wind power plants, solar power plants, small hydropower plants, tidal power plants, etc.In view of the fact that generation is stochastic, networks with generation relying on renewable energy sources have energy storage. It is also worth noting that isolated and non-isolated Microgrid even if generation does not base on renewable energy, energy storage devices can bring them a certain benefits connected with the changing cost of electricity during the day or year. Thus, a consumer of Microgrid has much greater capabilities than a consumer of a “traditional”, centralized power supply system, but he is also subject to much greater responsibility, because many of the functions that the system operator used to perform now fall on his shoulders. So, the following customer features in Microgrid can be distinguished: the ability to disconnect themselves from the mains supply for the period when consuming is not profitable for them, the ability to sell electricity to the power supply network, independently maintain equipment (including generating), calculate and forecast their consumption and generation, make profit from the sale of electricity to the network.Obviously, in the past, the average consumer was not capable meeting the greatest part of the needs of his own electrical “industry” independently, but using modem digital technologies, most of the tasks that previously were impossible to fulfill could be automated without the direct participation of the consumer. That is why, it is proposed to use software systems which will be based on neural networks. The task of these software systems is to collect and process monitoring data, each consuming or generating unit in Microgrid, to perform a large number of tasks. One of such tasks is classification and creation characteristics of generating and consuming equipment by collecting and analyzing data from Microgrid participants. The algorithm determines the characteristics of consumption and generation. Based on these characteristics under various external conditions and factors, load and generations schedules (especially important for renewable energy sources) and possible emergency events are predicted. In addition, such software systems make it possible to optimize the algorithms for determining the most profitable hours for consumption or selling of electricity to the network. It is more convenient to operate the described software systems as a cloud se","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":" 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120830138","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":"Using Synchronized Phasor Measurements to Detect Internal Faults in Power Transformers","authors":"V. Smirnov, T. Klimova","doi":"10.1109/RPA47751.2019.8958129","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958129","url":null,"abstract":"The analysis of Russian and global experience of technological development and the analysis of PMU functionalities show the usefulness of data on power facilities for solving different problems [1]. Due to high accuracy, sampling, short response time, as well as synchronization of measurements with global navigation systems, WAMS data can be effectively used for solving a wide range of tasks, including power transformer fault identification.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"37 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":"123526810","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":"Development the Adaptive Control System of Voltage on Substation","authors":"E. Voloshin, A. Voloshin, E. I. Rogozinnokov, R. Maksimov, D. S. Bondar","doi":"10.1109/RPA47751.2019.8958251","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958251","url":null,"abstract":"Maintaining of optimal voltage level in the whole system and on substation in particular is a task of utmost importance and its execution will allow us to improve quality of generated energy (GE) and to decrease losses during transition. Nowadays execution of that task is performed by concurrent reactive power compensation (CRPC) and voltage regulation (VR) in addition to the traditional regulation systems, which are not always perform their functions properly and that in its turn results in a simultaneous work both in generating and consuming of reactive power modes - work in “reverse phase”. Furthermore, existing systems do not take into account initial data of the equipment’s current state which leads to proportional wearing of one RPC comparatively of another installed on the same substation. If change of schematicregime situation occurs power flows of active and reactive power change and they affect the voltage change in nodes. In result regulator’s parameters become irrelevant which can result in insufficient regulation qualities – decrease of stability margin and unsatisfactory GE’s quality.Considering all mentioned above, nowadays there is a problem of actualization of adjusting regulator’s settings. This paper presents a description of a relevant regulator’s parameters determination method by identification of control object and dynamically adjusting regulator’s parameters.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"40 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":"123975769","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":"The Reliability of the Measurement and Control of Electrical Voltage Signals in Modern Devices of Relay Protection and Emergency Automation","authors":"V. Vanin, I. V. Vanin, M. Popov, N. G. Pavlov, S. Sarafanova","doi":"10.1109/RPA47751.2019.8958277","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958277","url":null,"abstract":"The paper studies the most typical modes of two-winding voltage transformers. These include the steady-state modes and close to the place of their connection to the power equipment short circuits and breakages of current-carrying elements in it. However, from the position of estimation of the transformation error, it is sufficient to consider the process of including the transformer in the work, which causes the most intense electromagnetic transients in it and is analyzed below. At the same time, the methodical provisions of the method of increasing the accuracy of reproduction of the primary voltage of two-winding voltage measuring transformers were considered, and the results obtained can be further used to further improve other multiphase varieties of these transformers. As a result of the research, the influence of the instrumental error on the value and functionality of the studied scheme of reproduction of primary signals of technical characteristics of analog and digital means, which implement various mathematical operations, is estimated. It is established that the main negative impact is due to the nonlinearity of the mutual inductance Mdif, which leads in the initial stage of the process to a significant increase in the maximum values of the magnetizing current imag and, as a consequence, to increase playback accuracy of u1. As a result of numerical experiments, it is shown that the ideal reproduction of the primary voltage u1, taking into account all the studied negative factors, is possible at a time interval of about 70-80 millisecond from the beginning of the switching process","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"5 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":"128610734","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":"Applications Of Synchrophasors In Relay Protection Of Digital Substations And Digital Grids","authors":"E.I. Khromtsov, A. Mokeev, P. Andreev, K. V. Petrov, A. Rodionov, D. N. Ulyanov","doi":"10.1109/RPA47751.2019.8958226","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958226","url":null,"abstract":"The main advantage of the digital substation technology is the implementation of horizontal connections based on high-speed communications between various IEDs, primarily a protection and automation devices [1–3]. This raises the efficiency of local protection, automation and control systems (PACS) and allows the centralized and distributed PACS to be realized.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"12 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":"121488568","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":"Using Synchronized Phasor Measurements to Detect Internal Faults in Power Transformers","authors":"V. Smirnov, T. Klimova","doi":"10.1109/RPA47751.2019.8958310","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958310","url":null,"abstract":"The analysis of Russian and global experience of technological development and the analysis of PMU functionalities show the usefulness of data on power facilities for solving different problems [1]. Due to high accuracy, sampling, short response time, as well as synchronization of measurements with global navigation systems, WAMS data can be effectively used for solving a wide range of tasks, including power transformer fault identification.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"58 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":"121133354","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":"RPA 2019 Author Index","authors":"","doi":"10.1109/rpa47751.2019.8958235","DOIUrl":"https://doi.org/10.1109/rpa47751.2019.8958235","url":null,"abstract":"","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"35 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":"115853147","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":"Distribution Of Pacs Functions Among Ieds Using The Knowledge Base Mechanism","authors":"E. Voloshin, A. Voloshin, N.P. Gracheva, A.D. Prikhodko, A.P. Boltunov, D. Ibragimova","doi":"10.1109/RPA47751.2019.8958254","DOIUrl":"https://doi.org/10.1109/RPA47751.2019.8958254","url":null,"abstract":"This paper describes the application of knowledge base technology and logical conclusion mechanism for automating the digital substation design process, notably the distribution of protection, automation and control (PAC) functions of substation equipment among intelligent electronic devices in accordance with regulatory and technical documentation.","PeriodicalId":268768,"journal":{"name":"2019 2nd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"114 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":"128155568","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}