The prospects of creating Autonomous power supply systems for hydrocarbon transport facilities are considered. The analysis of object-oriented multicomponent energy sources of various nature is carried out. Energy-efficient solutions for long-distance consumers based on renewable energy sources are proposed.

An algorithm was created for calculating the parameters of a cable with insulation from SPE, designed for transmitting electricity in three-phase systems at a rated AC voltage of 64/110 kV with a frequency of 50–60 Hz with a cross section of copper and aluminum cores of 185–2500 mm2. The mechanism for selecting the conditions for laying the cable line and the initial parameters of the CL in LabVIEW is implemented. Using universal software such as LabVIEW, you can create a program for calculating the cross section of a conductor and the screen section of a power cable.

The development of a project for the construction or reconstruction of an overhead contact line system is a long, laborious and painstaking creative process that requires the coordinated work of a large number of specialists at various stages. To date, there are a number of software developments that use modern information technologies to facilitate the design process of the overhead contact line system. Each of these developments has its own characteristics, advantages and disadvantages, history of appearance and prospects for further development.

Work to ensure the quality of electrical energy in accordance with the requirements of GOST 32144-2013 is currently relevant and requires prompt and high-quality solutions. The article lists the main consumers of electric energy that negatively affect the quality of electric energy, provides the results of measurements of electric energy quality indicators and the most common violations of regulatory requirements, analyzes the impact of voltage asymmetry on the operating conditions of electrical equipment. The basic formulas for calculating the asymmetry coefficients and ways to reduce the stress asymmetry are proposed.

In view of the active digital transformation of the energy sector, the mission to develop digital platforms for creating intelligent distributed energy infrastructure management and control systems becomes increasingly important. In Russia, such a digital platform called “∀ Platform” (“A-Platform”) is being created within the framework of the National Technological Initiative (EnergyNet). This paper discusses the purpose of the A-Platform, its architecture, and stakeholders (i.e., distributed electricity market players).

In the past few years, there has been a noticeable trend in the world to increase the speed and volume of rail transport. Along with them, the requirements and volumes of information in the development of projects for the construction and reconstruction of the overhead contact line system are growing. The use of outdated design and calculation methods in such conditions significantly reduces the quality of the results obtained. That is why it is becoming more and more relevant to use the achievements of science in the field of information technology to improve the design methodology of the railway contact overhead contact line system.

Between the 1960 and the 1990, a large number of new substation equipment was installed in Japan due to the growing demand for electricity. As the equipment now ages and wears out, the cost of maintenance and replacement increases. On the other hand, the current demand for electricity in Japan is stable, and transmission rates need to be reduced. Therefore, energy companies find it appropriate to ensure the efficient operation of existing equipment. To effectively implement asset management, it is necessary to collect data on the state of equipment and assess the decline in its performance.

An assessment of the technical and economic comparison of topology options for high-voltage frequency converters for a megawatt-class regulated electric drive, including electric gas-pumping units of compressor stations, is Presented. The research was conducted on 6 indicators of technical and economic nature: cost, operational reliability, degree of distortion of output voltage and current, electromagnetic compatibility with the supply network, efficiency and mass-dimensional characteristics. The estimated cost of a high-voltage frequency Converter is used as a cost indicator. A method of approximate calculation of the product cost based on the cost of the main components of the power part of the frequency Converter has been developed. Verification of the obtained cost calculation results showed their fairly good convergence with the prices of converters from various manufacturers. Technical and economic comparison of topology variants was performed by searching for the best solution for many criteria with different levels of their significance and IT algorithms. The results are expressed both numerically and verbally. For multi-criteria evaluation of options, an expert heuristic system for selecting the optimal option based on fuzzy logic is used.

The article considers additional approaches to calculating the electromagnetic parameters of an industrial AC contactor (AC) designed for 220 W and 60 Hz. Methods of analysis include conventional circuitry derived from measurements of characteristics of the terminal. The duality between interconnected electrical and magnetic circuits is used to calculate the magnetizing reactance of a contactor during a locked switching maneuver and during a closed-core configuration. Parameters obtained from circuit analysis are compared with more accurate estimates of finite element analysis. Special attention is paid to the subtle differences in circuit properties applied to conducting regions containing excitation currents, as well as to areas where the current is actually induced due to changes in the magnetic flux over time. An attempt is made to facilitate the understanding of physical phenomena associated with the presence of eddy currents in shading rings.