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检索条件"机构=Relay Protection and Automation of Power System Department"

共 192 条记录，以下是11-20 订阅

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Identification of Magnetizing Inrush Current for A power Transformer Based on the Magnetic Flux 7

Identification of Magnetizing Inrush Current for A Power Tra...

引用

7th International Scientific and Technical Conference relay protection and automation, RPA 2024

作者： Blagorazumov, D.O. Malyutin, M.S. Volkova, A.A. National Research University «MPEI» Relay Protection and Automation of Power Systems Department Moscow Russia

ISBN: (纸本)9798331501105

During the inrush of magnetization current in a power transformer, when it is energized, differential protection with a restraining characteristic may not function correctly due to high levels of differential current. To eliminate this problem and maintain high sensitivity, modern microprocessor-based protection devices use blocking based on the ratio of second harmonic level to first harmonic, comparing it with a setpoint of 10-20%. In some cases, the level of the second harmonic during an inrush in magnetization current may be lower than the lower limit of this setpoint, or fall within the range of blocking due to an internal fault in the transformer. The paper proposes a method for detecting the mode of magnetization current inrush based on magnetic flux and differential current. The main idea of the approach is to construct a blocking zone based on the characteristic of the dependence of the magnetic flux on the differential current. Choosing the settings for the trip and reset the developed blocking are described. The proposed method for identifying magnetization current inrush has been tested on a model implemented in RTDS, in modes of internal and external short circuits, as well as magnetization current inrushes and others. Based on the results of all the tests conducted, a conclusion was drawn about the speed and correct operation of the developed method. © 2024 IEEE.

关键词： Harmonic analysis

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Development and Research of a Digital Model of an Energy Router for power Flow Control at the Point of Common Coupling of power system and Microgrids 7

Development and Research of a Digital Model of an Energy Rou...

引用

7th International Scientific and Technical Conference relay protection and automation, RPA 2024

作者： Bondar, D.S. Voloshin, A.A. National Research University «MPEI» Relay Protection and Automation of Power Systems Department Moscow Russia

ISBN: (纸本)9798331501105

The 'energy router' device is part of the architecture of power supply systems created in accordance with the architecture of the Internet of Energy. The role of 'energy routers' in the Internet of Energy architecture is to enable the management of active and reactive power flows at the microgrid boundary. Energy routers can act as nodes of a distributed smart grid management system. To analyze the behavior of the device, a digital model of an ER of 0.4 kV consumer voltage level was developed and tested to perform power flow control between the microgrid and the distribution network. In this paper, the structure of the power flow control system is developed both when the device operates in the PQ converter mode and in the standalone voltage inverter mode. © 2024 IEEE.

关键词： Microgrids

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Development and Research of a Methodology for Online Analysis of Disturbances of Microgrid power Supply Modes Taking Into Account Their Peculiarities and Properties on The Basis of Application of Artificial Intelligence Technology 7

Development and Research of a Methodology for Online Analysi...

引用

7th International Scientific and Technical Conference relay protection and automation, RPA 2024

作者： Voloshin, A.A. Rogozinnikov, E.I. Lebedev, A.A. Asmykovich, E.B. Alekseeva, A.A. Ivanov, A.A. Doskalesku, K.V. National Research University «MPEI» Relay Protection and Automation of Power Systems Department Moscow Russia

ISBN: (纸本)9798331501105

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Development of an Automated system for Conducting Functional Tests of relay protection and automation Equipment 7

Development of an Automated System for Conducting Functional...

引用

7th International Scientific and Technical Conference relay protection and automation, RPA 2024

作者： Voloshin, A.A. Maksimov, R.S. Romanov, D.A. Polygalin, I.S. Astakhov, E.S. Yakovlev, D.P. National Research University 'Moscow Power Engineering Institute' Department of Relay Protection and Automation of Power Systems Moscow Russia

This article discusses the structure and operation of an automated system for conducting functional tests of relay protection and automation (RPA) equipment, implemented in Python programming language, utilizing the T... 详细信息

ISBN: (纸本)9798331501105

关键词： relay control systems

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Investigation of the Use of Rogowski Coils for power Direction relays in Fast Automatic Bus Transfer

Investigation of the Use of Rogowski Coils for Power Directi...

引用

2024 International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2024

作者： Evdakov, Aleksey Yablokov, Andrey Filatova, Galina Llc 'APS' Relay Protection And Automation Department Ivanovo Russia Electric Power Systems Automatic Control Department Ivanovo Russia

ISBN: (纸本)9798350395013

Currently, devices for fast automatic bus transfer (FABT) are widely used. The reaction time of the FABT algorithms is on the order of 4-:-10 ms, which is why the behavior of starting, approving and blocking organs, for example, power direction relays (PDR) in transient modes, is very important for them. The paper investigates the behavior of the PDR when using signals from Rogowski coils (RC) and electromagnetic current transformers (CT), taking into account the possible saturation of the magnetic circuit, when modeling emergency modes. The PDR study was performed using the Simulink simulation environment of the Matlab software package. Hodographs of the PDR vector for internal and external circuits are constructed, which show the advantage of using signals received from the RC, including at saturation of CT. Based on the conducted research, the conclusion is made about the advantages of using RC for FABT. The successful operation of FABT devices with the use of RC on a real object has also been demonstrated. © 2024 IEEE.

关键词： Electric instrument transformers

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DEVELOPMENT OF A MATHEMATICAL MODEL OF A SYNCHRONOUS GENERATOR FOR MONITORING CHANGES IN ELECTRICAL AND MECHANICAL PARAMETERS OF THE GENERATOR 6

DEVELOPMENT OF A MATHEMATICAL MODEL OF A SYNCHRONOUS GENERAT...

引用

6th International Scientific and Technical Conference relay protection and automation, RPA 2023

作者： Reznikov, I.S. Klimova, T.G. Tepikin, Ja.E. Kukis, D.V. Balabanov, A.M. Ententeev, A.R. Relay Protection and Automation of Power Systems Department National Research University «MPEI» Moscow Russia

ISBN: (纸本)9798350382334

The equipment of the electric power system is continuously subjected to electromagnetic, mechanical, temperature influence, which in turn affects the indicators describing its serviceability. In the case of synchronous generator, changes in one or more of these indicators can lead to the occurrence and development of defects: deterioration of contact, overheating, insulation failure between turns, stator winding breakage, etc. © 2023 IEEE.

关键词： Synchronous generators

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automation OF MAINTENANCE AND REPAIR PLANNING BASED ON A RISK-BASED APPROACH 6

AUTOMATION OF MAINTENANCE AND REPAIR PLANNING BASED ON A RIS...

引用

6th International Scientific and Technical Conference relay protection and automation, RPA 2023

作者： Kovalenko, A.I. Voloshin, A.A. Relay Protection and Automation of Power Systems Department National Research University «MPEI» Moscow Russia

Currently, the energy industry is moving from a system of preventive maintenance (PM) to maintenance and repair (MRO) based on the actual state, including the usage of a risk-based approach (RBA). © 2023 IEEE.

ISBN: (纸本)9798350382334

关键词： Preventive maintenance

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ALGORITHM OF TRANSFORMER'S TECHNICAL CONDITION INDEX FORECASTING FOR automation OF MAINTENANCE AND REPAIR PLANNING 6

ALGORITHM OF TRANSFORMER'S TECHNICAL CONDITION INDEX FORECAS...

引用

6th International Scientific and Technical Conference relay protection and automation, RPA 2023

作者： Kolobrodov, E.N. Voloshin, A.A. Kovalenko, A.I. Nikolaev, A.S. Relay Protection and Automation of Power Systems Department National Research University «MPEI» Moscow Russia

ISBN: (纸本)9798350382334

In December 2016, the Russian government issued Resolution No. 1401 "On Comprehensive Determination of Indicators of Technical and Economic Condition of Electric power Industry Facilities, including Indicators of Physical Depreciation and Energy Efficiency of Electric Grid Facilities, and on Monitoring of Such Indicators" [1] (hereinafter referred to as Resolution No. 1401), which allows electric power industry entities to switch from Planned Preventive Maintenance (PPM) to Maintenance and Repair (MRO) of equipment depending on the condition. © 2023 IEEE.

关键词： Preventive maintenance

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AUTOMATIC DESIGN VERIFICATION system FOR DISTRIBUTION NETWORK automation PROJECTS 6

AUTOMATIC DESIGN VERIFICATION SYSTEM FOR DISTRIBUTION NETWOR...

引用

6th International Scientific and Technical Conference relay protection and automation, RPA 2023

作者： Voloshin, A.A. Valger, V.A. Department of Relay Protection and Automation of Power Systems National Research University "MPEI" Moscow Russia

ISBN: (纸本)9798350382334

The development of automation in electric power systems touches many areas, including automation of distribution networks. Increased availability and quality of telecommunication and data transmission technologies has widened the usage of IEDs in distribution networks, which greatly improved the «visibility» of the network by providing additional status data and remote control capabilities. Which in turn increases the reliability of networks by accelerating the restoration procedures after emergency events. These advantages have found their application in the framework of FLISR [1], which combines multiple functions united by the goal of isolating faulty parts of the network and reclosing and restoring service for the remaining parts of the network. Due to the high degree of branching of distribution networks and multiple implementations of FLISR typical solutions and metodology are yet to be established. The design of relay protection utilities is guided by a plethora of strict rules and straightforward methodology [2], while in case of distribution automation the uniqueness of the underlying object forces to take into account the unique configuration of the network and the peculiarities of its operation practice. The corresponding regulations [2] only state the goal of the automation usage but don't provide the methodology for its designing, while such goal can be achieved in numerous ways. The lack of formally defined rules leads to two types of design approaches in practice, both of which are problematic. to the implementation of distribution network automation and the problems associated with these approaches. The first approach can be described as the client's desire to replicate established network operating practices using automation. In the absence of regulatory guidelines, the existing operationally viable practices appear to be the only valid option. In the second approach, the client fully trusts the expertise of the developer, expecting that the develop

关键词： automation

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METHOD OF AUTOMATED GENERATION OF MNEMONIC DIAGRAMS FOR ELECTRIC CIRCUITS FOR THE HMI OF SCADA systemS OF A DIGITAL SUBSTATION 6

METHOD OF AUTOMATED GENERATION OF MNEMONIC DIAGRAMS FOR ELEC...

引用

6th International Scientific and Technical Conference relay protection and automation, RPA 2023

作者： Yegorov, D.V. Lebedev, A.A. Degtyarev, D.A. Khafizov, S.F. Nukhulov, S.M. Relay Protection and Automation of Power Systems Department National Research University «MPEI» Moscow Russia

ISBN: (纸本)9798350382334

At present, there is active implementation of digitization policy. This leads to the active introduction of digital substations of the third architecture. The control center of any digital substation is the dispatch control panel and the SCADA system. For the dispatcher to interact with SCADA, the latter must have a human-machine interface (hereinafter HMI). Currently, HMI development is done manually in the SCADA editor or another graphic editor. This approach has several disadvantages: a lengthy process of coordination and approval, the presence of errors caused by the human factor. Thus, manual design and creation of HMI screen forms are accompanied by errors and also entail resource and time expenditures related to the lengthy stages of project documentation coordination. In this article, the authors propose a method that automatically generates screen forms of electrical schemes for the SCADA system based on SCD and CIM files of the substation's electronic documentation. The use of the automated generation approach of HMI electrical schemes for digital substation's SCADA systems allows minimizing the influence of the human factor in design, as well as reducing the development, coordination, and project approval time. Moreover, the proposed method is highly versatile and flexible, allowing its integration into any SCADA system. The article presents: functional and non-functional requirements for the developed method of automated HMI creation and its prototype, prototype operation scenarios when performing certain functions, method algorithms, and prototype architecture. In particular, requirements are formulated for input data in terms of SCD and CIM configurations and output data representing ready-made screen forms in XML and SVG formats. The article provides algorithms for generating screen forms of electrical schemes of the main substation scheme (overview) and schemes of switchgears of one voltage class. It also provides algorithms for determining the types

关键词： SCADA systems

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