2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)最新文献

{"title":"Investigation of Various Modifications of the Discrete Fourier Transform in Power Measurement Units","authors":"V. Revyakin, T. Klimova","doi":"10.1109/RPA57581.2022.9951129","DOIUrl":"https://doi.org/10.1109/RPA57581.2022.9951129","url":null,"abstract":"Phase measurements are widely used to identify and localize damage sites in order to respond in a timely manner and isolate hazardous areas in the electric power system. Due to the increasing complexity of the implementation of monitoring schemes for power distribution systems, there is a need for more accurate and rapid measurement of operating parameters. This issue is especially relevant for distribution networks due to smaller power flows and the presence of a higher level of harmonics compared to high voltage networks [1] .","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"280 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120838060","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":"Fault Location on Extra-High Voltage Lines Based on Synchrophasor Measurements and Rogowski Coils","authors":"A. Yablokov, I. Ivanov, A. Tychkin, D.S. Sharygin, A. Panaschatenko, F. Kulikov","doi":"10.1109/RPA57581.2022.9951102","DOIUrl":"https://doi.org/10.1109/RPA57581.2022.9951102","url":null,"abstract":"Digital technologies in electric power engineering could be beneficial from technical, economic and social perspectives. A few improvements they can bring are better analysis of power system steady states and transients, the implementation of new approaches to relay protection algorithms and asset control; the installation of new equipment with built-in microprocessor-based units possessing advanced features unavailable in traditional architectures; the reduction in both time and cost required for putting a piece of equipment into service, etc. All of these factors along with a considerable aging of power system components push the digital technologies forward. At the same time, power system digitization has been criticized for not providing clear evidence that the overall technical performance would be improved, as well as for the absence of a well-developed procedure to check out all of the potential benefits coming from technology implementation. Advantages brought by electric power system digitization and new “digit”-based algorithms (which were impossible with old platforms) cannot be seen without a deep investigation of specific technical solutions from various points of view.","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126853951","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":"Automated System for Planning Maintenance and Repairs","authors":"A. Voloshin, M. Sultanov, A. Kovalenko, S. A. Danilov, A. V. Strizhichenko, I. Boldyrev","doi":"10.1109/RPA57581.2022.9951104","DOIUrl":"https://doi.org/10.1109/RPA57581.2022.9951104","url":null,"abstract":"Currently, there is a tendency to schedule maintenance and repair of equipment according to the technical condition index as an integral indicator that actually evaluates the condition of all power equipment, while taking into account a risk-oriented model to optimize operating costs and ensure the operational reliability of microgrids.","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121622024","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 Development of Artificial Neural Network for Restoration of the Waveform of Secondary Current Distorted by Current Transformer Saturation","authors":"I. Litvinov, V. A. Titov, A. Trofimov","doi":"10.1109/RPA57581.2022.9951103","DOIUrl":"https://doi.org/10.1109/RPA57581.2022.9951103","url":null,"abstract":"Starting from 2014 the problem of current transformer (CT) saturation is extremely urgent in Russian Federation. It is caused by some severe accidents in power facilities among which we would like to highlight the following ones:","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"212 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115801997","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":"Integration of Renewable Energy Sources into Smart Grids Using Converters Based on Solid- State Transformers","authors":"B. Avdeev, A. Vyngra, V. Sobolev","doi":"10.1109/RPA57581.2022.9951082","DOIUrl":"https://doi.org/10.1109/RPA57581.2022.9951082","url":null,"abstract":"The problem of integrating renewable energy sources (RES) into regional networks is considered. The topologies of renewable energy converters are considered, their shortcomings are identified. One of the most important aspects of the introduction of alternative energy is the issue of effective integration of DC power from alternative sources into centralized regional AC networks. Integration occurs through the use of semiconductor network inverters. Typical inverting circuits are divided into two types - string circuits, in which batteries are connected in parallel to a common line by an inverter, and circuits with microinverters, in which conversion to alternating current occurs directly on each batteryThe advantage of string circuits is ease of maintenance, since the circuit has only one inverter per line, however, this reduces the reliability of the circuit. A large number of micro-inverters increases the cost of maintaining the installation, but if one of them fails, the circuit will continue to transfer electricity to the network. A distinctive feature of both types of circuits is the presence of an output power step-up transformer, which is the main element of integration. Due to the use of such transformers, the problem of accurate voltage regulation and efficient power distribution arises, since the amplitude value of the sinusoid of the primary winding depends on the voltage of the battery charge and is rarely regulated. The scheme of RES integration into smart power grids with the possibility of power and voltage regulation is considered. Such a topology of the converter can be used in both of the above integration schemes - both as a powerful string converter and as a micro converter.A converter for RES integration has been designed. The developed device consists of a non-isolated DC boost converter (BCC), a double active bridge and an inverter. The calculations of the components were made, a simulation model of the device was compiled. The principle of operation of the device is to gradually increase the DC voltage to the peak value of the mains voltage of 220 V (up to 310.2 V) with the possibility of two-level regulation and further inversion. Smoothing capacitors are provided in the DC links. Two-level regulation is performed by changing the duty cycle of the pulse-width modulation (PWM) signal of a non-isolated converter or by shifting the PWM phase of a dual active bridge. Output voltage regulation is possible both when the load increases and when the input voltage from the batteries changes.Modeling was carried out, the operation of the converter was investigated with a change in load and with a change in the input voltage from RES batteries. The simulation results showed a high efficiency of converting the DC voltage of RES batteries into the AC voltage of the regional network. The regulator effectively kept the output voltage within acceptable limits as the input voltage and load varied. The disadvantages of existing devices fo","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123778065","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 Existing Approaches to the Implementation of Automatic Synthesis of Algorithms","authors":"A. Voloshin, A. Vasiliev, E.B. Asmykovich, A. Ententeev, V.S. Dubovik, R.S. Maximov","doi":"10.1109/RPA57581.2022.9951116","DOIUrl":"https://doi.org/10.1109/RPA57581.2022.9951116","url":null,"abstract":"The electric power industry is a set of subsystems including equipment, information networks and a huge number of different programs serving both to simplify equipment operation and human-machine interaction.","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122682547","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 2022 Cover Page","authors":"","doi":"10.1109/rpa57581.2022.9951090","DOIUrl":"https://doi.org/10.1109/rpa57581.2022.9951090","url":null,"abstract":"","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131586832","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":"Scada and Pmu Measurements Application for Control Power Grid Parameters","authors":"P. Avdonin, T. Klimova","doi":"10.1109/RPA57581.2022.9951100","DOIUrl":"https://doi.org/10.1109/RPA57581.2022.9951100","url":null,"abstract":"Complete and accurate information about the mode parameters is required for effective management of the power grid. Such information characterizes the current state (parameters) of the grid. The operational information complex of the dispatch center SCADA (Supervisory Control And Data Acquisition) receives such information using telemetry control in the form of remote signals of the equipment state and remote measurement of the grid parameters.","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124801654","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":"Modification of the Method for Finding the Frequency Parameters of Transients in Unstable Systems","authors":"D.M. Biserov, T. Klimova, A. Vasiliev","doi":"10.1109/RPA57581.2022.9951080","DOIUrl":"https://doi.org/10.1109/RPA57581.2022.9951080","url":null,"abstract":"The main development of power systems is in the direction of increasing the quantity and quality of measured electrical parameters. An example of this is the technology of phasor measurement units. PMU technology makes it possible to increase the observability of the electric power system, find the source of disturbances, evaluate the transition process and its consequences.","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116425461","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 Development of System for Automatic Adaptive Change of Relay Protection Settings in Distribution Networks","authors":"V. S. Sazanov, A. Kovalenko, A. Voloshin, S. A. Danilov, E. Voloshin, D. Degtyarev","doi":"10.1109/RPA57581.2022.9951121","DOIUrl":"https://doi.org/10.1109/RPA57581.2022.9951121","url":null,"abstract":"At present, problems in the implementation of relay protection can arise due to the integration of distributed energy resources into the distribution network. With the integration of distributed energy resources into the distribution network, previously uncharacteristic emergency modes appear, since multi-sided power supply of the fault point becomes possible and electromechanical transients change. Relay protection in such situations can work falsely. Thus, when changing network modes, it is an revelant task to develop a system that is able to change the settings of the relay protection operation without human actions. This system is being developed in order to reduce the number of errors of field service teams, reduce labor costs for calculating and analyzing the parameters of protections devices.","PeriodicalId":413852,"journal":{"name":"2022 5th International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125803140","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}