14 октября 2025
АНОНС «ЭЛЕКТРОЭНЕРГИЯ. Передача и распределение» № 5(92), сентябрь-октябрь 2025
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ЭЛЕКТРОЗАРЯДНАЯ ИНФРАСТРУКТУРА
УДК 621.316.174
ЭНЕРГОСНАБЖЕНИЕ
УДК 621.311:004.021
ЭНЕРГОСНАБЖЕНИЕ
УДК 621.316.3
ВОЗДУШНЫЕ ЛИНИИ
УДК 621.315.175
ВОЗДУШНЫЕ ЛИНИИ
УДК 621.315.1:621.315.2:331.453
ВОЗДУШНЫЕ ЛИНИИ
КАБЕЛЬНЫЕ ЛИНИИ
РЕЛЕЙНАЯ ЗАЩИТА И АВТОМАТИКА
УДК 621.311:004.855
ОБОРУДОВАНИЕ
ОБОРУДОВАНИЕ
ОБОРУДОВАНИЕ
УДК 621.311.001.57
ДИАГНОСТИКА И МОНИТОРИНГ
ОХРАНА ТРУДА
TOPICAL INTERVIEW
Security Culture as a Strategic Priority
Interview with O.E. Kondratieva, Doctor of Engineering, Senior Lecturer, Director General of the National Association of Labor Protection (NASOT Association), Head of Ecological Engineering and Work Safety Department of the National Research University MPEI
CHARGING INFRASTRUCTURE
Analysis of the Prospective Impact of Electric Vehicle Charging Stations on Distribution Grid Substations in Yekaterinburg City
Zamarin D.O., Zaikov I.A. (Rosseti Ural, PJSC) Samoylenko V.O. (Ural Federal University n.a. the first President of Russia B.N. Yeltsin, Ekaterinburg)
Abstract. The paper presents the results of the study of electric vehicles (EVs) and charging infrastructure impact on 35-110 kV substations load at urban distribution grid. Based on new parking areas in Yekaterinburg city, the number of EV charging stations, their mode of operation and estimated load were determined. The analysis reveals a reconstruction necessity for the substations located nearby the parking areas with a large number of charging stations. Energy consumption of EVs and the predicted electricity output of charging stations were calculated taking into account their statistical reliability indicators. The minimum tariffs for EV charging stations were established with regard to payback of overloaded substations reconstruction. The sequence of calculations is combined into a methodology for assessing the minimum required tariffs for EV charging stations electricity.
Keywords: electric vehicle, charging infrastructure, charging station, charging point, future planning, distribution grid.
Charging Stations E-PROM: Made in Tatarstan for the Whole Russia
POWER SUPPLY
Comparison of Algorithms for Optimizing the Parameters of a Dynamic Power System Model Implemented in the Modelica Language
Florinskij A.A. (Branch of JSC SO UES – Leningrad RDU, Peter the Great St. Petersburg Polytechnic University), Belyaev A.N. (Peter the Great St. Petersburg Polytechnic University)
Abstract. This paper analyzes two optimization algorithms on the example of validation of the dynamic calculation model of the Kola-Karelian transit. The algorithms under consideration have a fundamental difference in terms of the use of derivatives in the process of calculating the objective function. It is believed that algorithms that use derivatives, have a higher convergence rate. Despite this, algorithms of this type may have problems associated with the complexity of calculating derivatives, the greater time spent on preparation for calculation, and the possibility of achieving only a local minimum instead of a global one. Algorithms without derivatives are free of the above-mentioned shortcomings, however, their application is associated with high computational costs and the absence of a hundred percent guarantee of finding the minimum of the objective function. The result of the work is the graphs of the transient processes of the dynamic calculation model verified by the optimization algorithm, and the numerical assessment of their compliance with the data of the registration of the real emergency disturbance.
Keywords: validation, dynamic calculation model, quality of the model, calibration, optimization algorithms, Levenberg-Markwardt algorithm, adjustable parameters, target function, genetic algorithm.
Updating the Methodology for Determining the Design Electrical Loads of Apartment Buildings at the Stage of Submitting Applications for TechnologicalConnection (Using the Example of the Moscow City Power Supply System)
Shvedov G.V., Shilin V.A. (NRU «MPEI», Moscow), Kondratenko A.A. (Moscow City Housing and Communal Services Dept.), Veden’yev K.E. (OOO ETS-Energo), Porotnikov A.A. (OOO APREN)
Abstract. The development of electrical technologies and the improvement of energy efficiency of electrical appliances lead to a reduction in the maximum electrical load of consumers. The methods and approaches to determining the design electrical loads of apartment buildings, outlined in the regulatory documents RD 34.20.185-94 and SP 256.1325800.2016, have not been updated for over 30 years. During this period, the construction of apartment buildings has shifted from typical standard buildings to buildings based on individual projects; the composition of household appliances, the electrical technologies used in them, and their level of energy efficiency have changed. Failure to take this fact into account results in a significant overestimation of the design electrical loads of apartment buildings in long-term planning. Consequently, urban power supply systems are characterized by low energy efficiency parameters. This article attempts to update the methodology for determining the design electrical loads of apartment buildings at the stage of submitting applications for technological connection, within the development of complex schemes for engineering support of urban territories, including residential renovation programs. As initial data, a dataset of electricity consumption of 183 apartment buildings for the period from summer 2024 to spring 2025 has been analyzed. It is found that the actual maximum loads are significantly lower than the current standards. It is revealed that in the context of modern non-standardized construction, it is advisable to determine aggregated relative electrical loads per square meter of the total building area. As a result, new standards for electrical loads are proposed, and a methodology for their application in calculating aggregated electrical loads of apartment buildings with a total area exceeding 2000 square meters at the stage of developing power supply design documentation is described.
Keywords: electrical load, relative load standard, residential buildings, apartment buildings, urban power supply system, electrical grid design.
OVERHEAD TRANSMISSION LINES
The Fight Against Ice Formation in Electrical Grids: How Climate Change Impacts the Reliability of the Energy System
Satsuk Ye.I. (JSC SO UPS), Levchenko I.I., Shevchenko A.V., Shevchenko V.A., Rychkov S.V. (OOO EnergoSoftProject), Beryozkin Ye.D. (Platov South-Russian State Polytechnic University (NPI), Novocherkassk)
Abstract. Sustainable climate change leads to broadening of geography and increasing of the icing rate in overhead transmission lines. To prevent severe ice accidents and mass consumer shutdowns, the continuous improvement of preventive and protective measures against glaze-ice and rime deposition on wires andground wires is the absolute requirement. An essential measure is ice-melting. Application of the purpose-designed software to calculate the ice-melting modes helps to improve reliability of the network operation during the autumn-winter period. The article considers the increase of the glaze-ice and rime deposition rate in overhead transmission lines caused by the climate change in the territory of the Russian Federation, the impact of changes in the technical and organizational structure of the power industry of Russia and EAEU countries on continuous improvement of icing emergency preventive approaches, unification of icemelting mode calculations for overhead transmission lines via using the purpose-specific software as part of the work on network reliability improvement during the autumn-winter period.
Keywords: electrical systems, overhead power transmission lines, climatic conditions, ice formation, ice melting.
Provision of Electromagnetic Compatibility in Developmentof a New Design of a Transition Point of the 220 kV Overhead Transmission Cable Line
Gvozdev D.B., Korolev A.A., Bolonov V.O., Kuklev A.A. (PJSC Rosseti Moscow Region) Kosorukov A.V. (JSC Lenhydroproject) Yermoshina M.S., Glinskiy S.A., Zhidkov M.I. (NPO Streamer)
Abstract. When designing connections of overhead and cable transmission lines, the functionality of transition points should be the primary focus. These points are located within the city area, in crowded places, close to the housing sector, and therefore, life security issues are vital. Present-day transition points are sophisticated facilities equipped with switching and test measuring devices that are digital componentsof a power system. Provision of electromagnetic compatibility and biosecurity of the personnel and third parties at 220 kV facilities with the high electromagnetic field strength is vital and a nontrivial objective. This article considers these issues when developing a new design of compact transition points on a 220 kV overhead line pole.
Keywords: overhead lines, cable lines, overhead-cable lines, transition point, electromagnetic compatibility, bio-security.
Development of the Series of Unified Reinforced Concrete Poles for 0,4 kV and 6-20 kV Overhead Transmission Lines with the Increased Endurance
PJSC Rosseti Centre, branch of PJSC Rosseti Centre and Volga Region – Tulenergo, JSC Rosseti Scientific and Engineering Centre, JSC Rosseti Scientific and Technical Center, branch of JSC Rosseti Scientific and Technical Center – Siberian Scientific Research Institute of Energy (SibNIIE)
CABLE LINES
Testing of 110 kV Cable Systems with PE-X-a Compound Insulation
PJSC Rosseti Center, branch of PJSC Rosseti Center and Volga Region — Nizhnovenergo, OAO Kirskabel, OAO Lider-Kompaund, OAO VNIIKP
Requirements to Screen Cross-Bonging Nodes of 110-500 kV Cable Lines
Dmitriev M.V. (FGAOU DPO «PEIPK», St. Petersburg)
Abstract. High-voltage cable lines of classes from 110 to 500 kV play a key role in the power supply of cities, all over the world. For more than 20 years, such lines have in most cases been made by singlecore cables with XLPE insulation. One of the problems that has to be solved is the fight against induced currents in the cable screens and the corresponding power losses in the screens, which heat the insulation and thereby reduce the ability of the line to transmit power. For 110-500 kV cable lines with a length of more than 500-800 m, the limitation of currents and losses in the screens is carried out by crossbonding of the screens. The article examines the options for arranging the cross-bonding nodes in order to choose the most optimal one.
Keywords: cable line, single-core cable, cross-bonding of screens, cross-bonding cable joint, cross-bonding link box, bonding cable.
Choosing the Cable Wire Section in Industrial Networks for the Voltage Up to 1 kV
JSC Mekhanobr Engineering
RELAY PROTECTION AND AUTOMATION
Forming Training Datasets for Emergency Centralized Control in Power Systems Using Artificial Intelligence Algorithms
Senyuk M.D., Pazderin A.V., Berdin A.S. (Ural Federal University n.a. the First President of Russia B. N. Yeltsin, Ekaterinburg)
Abstract. The effectiveness of emergency control over power system operation modes, based on machine learning algorithms, directly depends on the representativeness and size of training datasets that define the relationship between grid conditions and optimal control actions. A commonly adopted strategy for forming such datasets involves combining physical and synthetic measurements, enabling machine learning models to detect latent and implicit patterns in emergency control scenarios while accounting for actual physical phenomena withinreal-world power grids. This paper introduces a systematic methodology for generating representative training data through computationally derived control actions for complex operational states followed by application of dimensionality reduction techniques and adaptive clustering algorithms. To simulate more challenging grid conditions, the method employs both full and partial cross-section approaches. A computational experiment utilizing an IEEE24 power system model demonstrates how this procedure generates training data that describes appropriate control strategies ensuring static stability during post-contingency operations. Results show substantial improvement in dataset quality as measured by increased clustering precision via the Adjusted Rand Index. Finally, potential areas for further investigation are outlined.
Keywords: power system, emergency control, circuit-mode diversity, machine learning, dimensionality reduction algorithm, adaptive clustering algorithm.
EQUIPMENT
Transformer UPS of TR733 Series Produced by AKEL: Secret Opportunities for Major Power Facilities
Contact Joint Temperature (Heating) Monitoring Complex for 0,4-35 kV Power Equipment
OOO PARMA
Subsynchronous Torsional Interaction in the «GTU-Autonomous Grid System»: Causes and Simulation Model
Belkova D.N., Anosov V.N. (NSTU, Novosibirsk)
Abstract. The article discusses the causes of subsynchronous torsional interaction (SSTI) of generator shafts with disturbances from the electrical network in an autonomous power supply system. Torsional vibrations can lead to fatigue failure of the shaft, and increased vibrational activity of the shafts can lead to an emergency shutdown of the generating unit by the vibration protection system. The article also outlines the main causes of power system failures due to subsynchronous resonance, which can occur as a result of insufficient damping of oscillations when the natural frequencies of the gas turbine unit (GTU) coincide with the disturbance frequency. A mathematical model of the energy system has been developed in MATLAB Simulink to study torsional interactions, and the assumptions made are justified.
Keywords: autonomous power system, subsynchronous resonance, subsynchronous torsional interaction, gas turbine unit, thyristor rectifier, simulation modeling, subharmonics.
DIAGNOSTICS AND MONITORING
Use of the Fault Location Detection System SKAT-VOMP in Distribution Networks
Eskort Group of Companies
LABOR PROTECTION
Pilot Testing Sites for Protective Clothing and Means: Priority is with the Electrician’s Opinion
JSC Grid Company
PERSONNEL TRAINING
JSC UEC Supports the Traditional Student Initiation Ceremony in the National Research University MPEI
Complex Risk Management Training for the Personnel
JSC UNECO
INDUSTRIAL INJURIES
Dynamics of the Work-Related Injuries in the First Half of 2025
Russian Federal Service for Ecological, Technical and Atomic Supervision; Association «ERA of Russia»
JOURNEY THROUGH THE PAST
The Journal ‘Electricity’ as the Historical Records of Domestic Power Engineering Development (to its 145th Anniversary)