Complex Operators Research Articles

Моделирование перерабатывающей способности терминально-логистических объектов железнодорожного пограничного перехода Нижнеленинское (РФ) – Тунцзян (КНР)

The workload of terminal and warehouse facilities of the transport and logistics center «Nizhneleninskoye» under construction, accompanying the railway bridge crossing Nizhneleninskoye (RF) - Tongjiang (PRC), is investigated. The transport and terminal logistics infrastructure of the Nizhneleninskoye - Tongjiang border crossing is considered. The paper uses theoretical research methods, including modeling, visualization and comparison. Crossborder infrastructure projects, including railway and automobile bridge crossings, are considered, indicating the existing and prospective capacity. The technical and operational characteristics of the transport and terminal logistics infrastructure of the Nizhneleninskoye - Tongjiang railway border crossing are given. The technical and technological parameters of the warehouse complex of the transport and logistics center Nizhneleninskoe are described. The results of two modeling scenarios are presented - at the first stage of operation of the transport and logistics center «Nizhneleninskoe» and at the second stage of operation with infrastructure development for prospective cargo handling. With the increase in the incoming cargo flow by 2.5 times at the second stage of operation of the warehouse complex, during the simulation, the load of the storage area of the warehouse complex increased by 40%, the load of lifting and transport equipment increased, which affected the reduction in the number of handled and shipped loaded vehicles. In order to speed up intra-warehouse operations, it is proposed to develop options for moving lifting and transport equipment, designate «hot» and «cold» zones of the warehouse, determine the required staff numbers with distribution by working positions, draw up technological maps and daily work schedules of the warehouse.

Improving a no-failure operation of a PV systems with grid inverters for agricultural regions

The growing interest to the use of power generating complexes based on renewable energy sources has been witnessed recently. It necessitates the need to improve the no-failure operation of such complexes. The highest failure rate is typical for the string inverter in grid-connected PV systems. The failure of the string inverter induces supply termination of electrical energy to the grid. The paper explores an approach to improve the no-failure operation of the process of electrical energy distribution by a PV system to the grid driven by the use of micro inverters. The authors used the logical-probabilistic method to assess the no-failure operation of the PV system. Thus, the authors obtained the expressions to calculate the probability of failure for PV systems, enclosing a string inverter, and micro inverters.

INCREASING THE EFFICIENCY OF THE ORGANISATION OF HOTEL AND RESTAURANT COMPLEXES BY USING INTERNATIONAL INFORMATION TECHNOLOGIES (ON THE EXAMPLE OF VARNA, BULGARIA)

The article the essence of international information systems and technologies in the hotel and restaurant sphere. The need to integrate software into the operation of hotel complexes and restaurants as a basis for the formation and strengthening of competitive advantages for business entities in the rapidly growing market of hotel and restaurant services is substantiated. The role and features of the use of individual tools of international information technologies and systems in the hotel and restaurant business are highlighted. Information and communication facilities, components and tools that enable the storage, access, monitoring, processing and transmission of information in digital form are described. The most popular and downloaded programs in the hotel and restaurant industry in the world according to the results are described. The most common trends in information systems and technologies in the hotel and restaurant business have been identified, including mobile technologies (mobile applications, chatbots, virtual queues, QR codes for menus), contactless payments, the Internet of Things, robots, and virtual tours. The use of information and communication technologies in popularity hotels in Varna is analyzed.

ОПТИМИЗАЦИЯ СИСТЕМЫ УПРАВЛЕНИЯ ПРОГРАММНО-АППАРАТНОГО КОМПЛЕКСА ДЛЯ УЧЕТА ЭЛЕКТРОЭНЕРГИИ

The presented article explores the topic of optimizing the control system software and hardware complex for electricity metering. The control system plays a crucial role in accurately measuring and monitoring electricity consumption. The main objective of this research is to identify and implement optimization techniques that enhance the performance and efficiency of the control system. Aim. Based on the analysis of existing electrical complexes, to develop an architecture, simulation digital models, effective control al-gorithms and methods of operation of an electrical complex based on three-phase digital measuring trans-formers with a control system of domestic production for electricity metering in high-voltage AC networks, ensuring operability and quality of functioning in various modes under various external influences. Mate-rials and methods. The scientific tasks have been solved using the general theory of electrical complexes and systems, the control systems theory, methods of physical, mathematical, simulation and computer modeling of components of electrical complexes and systems. Results. The article reflects the development of the general theory of electrical complexes, including digital combined measuring transformers and a control system in the form of a stand-alone integration module, in terms of optimizing system connections of components of electrical power metering complexes. Conclusion. The main practical result of the con-ducted research is the production of a prototype of an electrical complex based on prototypes of adaptive digital current and voltage transformers and an electrical complex control system for electricity metering based on a universal platform for measuring transformers. Such a construction of a digital three-phase measuring transformer and a universal terminal block (unification module) make it relatively easy to de-velop similar devices with other current and voltage ranges based on the developed prototype. In existing combined measuring transformers, such a combination of primary converters is not used.

OPERATION OF A HYBRID POWER PLANT POWERED BY RENEWABLE ENERGY SOURCES

The use of power plants powered by renewable energy sources for the power supply of real objects is of great interest among scientists around the world. The task of uninterrupted and reliable power supply to remote consumers is relevant. (Research purpose) The research purpose is studying the operation of hybrid energy complexes operating on several renewable energy sources in order to obtain an uninterrupted and reliable power source. (Materials and methods) A mathematical model of a hybrid energy complex consisting of a solar module, a wind module and an energy storage module was proposed. A mathematical model of the solar module was presented, taking into account the ambient temperature, the dustiness of solar panels, the throughput capacity of the surface above the solar cells; and a mathematical model of the wind module taking into account the efficiency of an electric synchronous generator and gearbox. The total power generated by the energy complex at any given time during the year was determined. The equation of the power balance of the power supply system was compiled. A mathematical model of the hydrogen system was shown. The amount of electricity needed to produce 1 kilogram of hydrogen has been calculated. The mass of hydrogen obtained by electrolysis was determined. The dependence of the mass of hydrogen in the storage system on time was determined. The electrical power that can be obtained from the heating element was calculated. Restrictions have been introduced regulating the mass of hydrogen stored in tanks. We have developed a scheme for the operation of a power plant with a hydrogen system. (Results and discussions) The article presents obtained by direct measurements the load schedule of the electrical receivers of the botanical garden’s own needs for the year by month. Equipment was selected to ensure the operation of the hybrid energy complex. We obtained, using data on renewable resources over the past 20 years, taking into account the outdoor temperature, the dependence of the amount of electricity generated per year by month. (Conclusions) The energy complex with an energy storage module consisting of an electrolyzer, a hydrogen storage device and a fuel cell is capable of providing reliable and uninterrupted power supply.

До питання відновлення та зміцнення деталей робочих органів ґрунтообробної техніки

Ecological and agrotechnical requirements for technical means of mechanization of agriculture are constantly growing and improving, especially in the field of indicators that determine the harmful effect on soils, including, on the limit of permissible clogging of them with metal from the accelerated wear of working organs, and getting into the soil products of wear and tear. A huge volume of agricultural products is produced by both large farms and smaller farms. In the created economic situation, there is a steady growth of farms; the growth of arable land for grain and other agrotechnical crops, which undoubtedly creates a demand for the working bodies of agricultural machines. For example, only farms in the south and southeast of Ukraine annually consume more than 400,000 cultivator paws and plowshares, not including offers for other working bodies. The most heavily loaded surfaces of tillage machines and aggregates are the working bodies: the ploughshare is the ploughshare, the cultivator's paws, and the harrow's discs or teeth. The reason for their premature failure is mainly accelerated abrasive wear, which is due to interaction with solid (HV 8-11 GPa) particles in the soil. The working bodies of agricultural machinery include: ploughshares, plow bodies, discs of heavy harrows, paws of cultivators and planters, and many other parts of working bodies. It should also be noted that soil cutting is the most widespread technological operation in the agro-industrial complex: plowing, cultivation, harrowing, harvesting of grain and technical crops, these operations make up at least 70% of the total volume of mechanized work. At the same time, such performance indicators as the degree of weed cutting, the average depth of cultivation, the stability of the movement of the working bodies in depth depend primarily on the technical condition of the blade of the working body of agricultural machinery; their clogging and sticking to the surface of the blade; traction resistance of working bodies. A chamfer is formed on the edge of the blade and the toe, which negatively affects the stability of the movement of the working bodies in depth, the profile of the toe, the geometry and width of the blade of the working body changes. Dull cultivator legs and plow blades increase the traction resistance of the units, and therefore the productivity is significantly reduced, while fuel consumption increases by 15-20%. In connection with the uneven operation of the cutting edges and other surfaces of the working bodies of agricultural machinery, there is a need to strengthen and restore them. In addition, agricultural working bodies are operated in conditions of a chemically aggressive external environment, which is connected with the addition of various fertilizers to the soil and the presence of moisture in it. The wear of the parts of tillage machines that have direct contact with the abrasive mass is strongly influenced by soil moisture. Moisture, depending on the type of soil, can both increase and decrease wear. Together, these factors exert such a strong influence on the working bodies of agricultural machinery that it makes them unusable after almost a few hours of intensive machine operation. The developed technology of modification of the parts of the working bodies of tillage machines using point strengthening increases the resistance to abrasive wear of their working surfaces by 2-3 times, and is able to replace other strengthening technologies, because it has high productivity and reduces the energy consumption of technological equipment many times over.

Calculation of capacity of spillway № 2 Boguchanskoye HPP with free water overflow

The article considers a variant with the operation of spillway No. 2 of the Boguchanskaya HPP as the main spillway structure for the period of temporary operation of the hydroelectric complex. In the process of developing options for skipping construction costs, a calculation was made of the throughput with a free overflow through a flat threshold at the level of 167.0m at the FSL=175m and forcing the UVB to the level of 185.0 m with the damping of the flow energy in the water well. The task of the calculations is to obtain the discharge characteristics of the considered spillway option with the calculated flood hydrograph with a probability of 0.2%. At the same time, based on the throughput capacity of the spillway No. 1, the dependence of the turbine flow rate and the water depth in the downstream, as well as the transformation of the flood of a given probability, the estimated flow rate is 5500 m3/s, the maximum head H=18 m (determining) at a minimum threshold level of 167.0 m. Weir refers to weirs with a wide threshold. The throughput capacity of the spillway No. 2, operating in the free overflow mode, was determined. The change in the lateral compression coefficient depending on the head for the middle and outer working spans is considered. The outlines of free-falling jets behind the culverts operating in the free overflow mode are obtained, which makes it possible to refine the outlines of the side walls of the spillway.

Methodological aspects of determining the economic efficiency of environmental management

Methodical approaches to calculating the economic efficiency of natural resources use are considered. The characteristics of water services regulation in Ukraine are given. Economic indicators of regional development in the Vistula River basin are investigated. The dynamic analysis of revenues for special water use and expenditures for water resources in the Vistula River basin is carried out. Revenues to the state and local budgets were investigated in terms of rent payments, environmental tax, rent and special use of fish and other aquatic bioresources. To calculate the economic efficiency, the state expenditures under the budget program “Operation of the state water management complex and water resources management” in the Vistula River basin area were used. The obtained indicator was improved by taking into account the environmental component. Expenditures in the context of capital and current investments from the state and local budgets for environmental programs in the field of water resources protection were analyzed. The indicator of reduced costs for water resources in 2020 is formed. It is proposed to assess economic efficiency through the indicator of the level of coverage of the reduced costs of water resources.

Capacity of second spillway of Boguchanskaya HPP

The main problem in designing the discharge of water flow from the upstream to the downstream is to ensure the capacity of spillway structures. This article discusses the design options for the design top of the spillway: with water diversion through a short nozzle in the pressure mode and energy dissipation in stilling basin, with the pressure-free and pressure-free passage of water through spillway No. 2 and damping of the flow energy by jet discharge into the lower stream by the inclined face of the threshold in the stilling basin; with no pressure passage and pressure passage of water through spillway No 2 and energy dissipation of the flow by throwing the flow discharge into the downstream by the inclined face of the threshold of a stilling basin; with the passage of building expenses through the sill in no pressure and pressure-type short-nozzle modes, with the spillway No. 2’s horizontal water outlet at the level of 139.5 m, with a jet discharge by a toe-springboard at an angle of 35°, and with the outlet rib's mark of 143.8 m. This article aims to obtain the flow characteristics of the considered spillway option for the period of temporary operation of the hydrotechnical complex.

Complex symmetric Toeplitz operators on the unit polydisk

In this paper, we study the complex symmetry of Toeplitz operators on the weighted Bergman spaces over the unit polydisk. First, we completely characterize when anti-linear weighted composition operators [Formula: see text] are conjugations. We then give a sufficient and necessary condition for Toeplitz operators to be complex symmetric with respect to these conjugations. As a consequence, some interesting higher-dimensional complex symmetric phenomena appear on the unit polydisk such as the monomial Toeplitz operators [Formula: see text] with [Formula: see text] for some symmetric permutation matrix [Formula: see text]. Surprisingly, these operators [Formula: see text] are the only ones that are complex symmetric monomial Toeplitz operators on the unit bidisk.

COMPLEX MATHEMATICAL MODELING FOR ADVANCED FRACTAL–FRACTIONAL DIFFERENTIAL OPERATORS WITHIN SYMMETRY

Non-local operators of differentiation are bestowed with capabilities of encompassing complex natural into mathematical equations. Symmetry as invariance under a specified group of transformations can allow for the concept to be applied extensively not only to spatial figures but also to abstract objects like mathematical expressions which can be said to be expressions of physical relevance, in particular dynamical equations. Derived from this point of view, it can be noted that the more complex physical problems are, the more complex mathematical operators of differentiation are required. Accordingly, the fractal–fractional operators (FFOs) are expanded into the complex plane in our research which revolves around a unique class of normalized analytic functions in the open unit disk. To bring FFOs (differential and integral) into the normalized class, the study aims to expand and modify them along with the investigation of the FFOs geometrically. The qualities of convexity and starlikeness are implicated in this study where the differential subordination technique serves as the foundation for the inquiry under consideration. Furthermore, a collection of differential FFO inequalities is taken into account, demonstrating that the normalized Fox–Wright function can contain all FFOs. Besides these steps, the concept of Grunsky factors is applied to investigate symmetry, while boundary value issues involving FFOs are probed. Consequently, the related properties and applications can be further developed, which requires the devotion to differential fractional problems and diverse complex problems in relation to viable applications, pointing out the room to modify and upgrade the existing methods for more optimal outcomes in challenging real-world problems.

Oxygen-carrying acid-responsive Cu/ZIF-8 for photodynamic antibacterial therapy against cariogenic Streptococcus mutans infection.

Caries as a result of acid demineralization is the most common oral microbial infectious disease. Due to the small and complex intraoral operating space, it is challenging to completely remove Streptococcus mutans (S. mutans) and other cariogenic bacteria. As an intelligent acid-responsive photosensitive nanomaterial, O2-Cu/ZIF-8@Ce6/ZIF-8@HA (OCZCH) was chosen to adapt to the anaerobic and acidic microenvironment for inactivating S. mutans. In this work, OCZCH not only exhibits a regular nanomorphology in SEM and TEM images but also shows intelligent acid responsiveness as evidenced by the release of Ce6 and oxygen. When excited by near-infrared light at 650 nm, Ce6 releases reactive oxygen species (ROS) that act synergistically with internal oxygen to significantly enhance the antimicrobial therapeutic effect of photodynamic therapy (PDT). In vitro antimicrobial experiments showed that OCZCH could achieve an impressive sterilization effect against S. mutans and biofilm. Notably, the acid-producing ability of the bacteria was also significantly inhibited. With its oxygen-carrying photosensitizing properties, excellent responsiveness to acidic environments, and antimicrobial capacity under anaerobic conditions, OCZCH is considered an innovative candidate for clinical application in treating dental caries.

Generalized Heronian Mean Operators Based on Archimedean T‐Norms of the Complex Picture Fuzzy Information and Their Application to Decision‐Making

Complex picture fuzzy set is a special picture fuzzy set where the truth, abstinence, and falsity grades are shown by a complex number and can effortlessly illustrate the problem and inconsistency in the genuine world. T‐norm and t‐conorm play an essential and beneficial role in the environment of fuzzy set theory; similarly, Archimedean t‐norm and t‐conorm have massive flexibility and dominancy in the information fusion procedure. The major contribution of this analysis is to explore the algebraic, Einstein, Hamacher, and Frank operational laws under the complex picture fuzzy set. Moreover, the principle of complex picture fuzzy Archimedean Heronian aggregation operator and complex picture fuzzy weighted Archimedean Heronian aggregation operator are also elaborated by using Archimedean t‐norm and t‐conorm. Additionally, by using the elaborated operators, a multiattribute decision‐making technique is presented to elaborate the consistency and reliability of the explored works. Finally, many examples are illustrated for discussing the advantages and sensitive analysis and graphical representation of the investigated works.

Voltage stability and power loss minimization with UPFC using heuristic and hybrid heuristic methods

Present-day power systems have highly complex and stressed operating conditions owing to insufficient reactive power to meet the required power demand. This leads to increased real power and reactive power losses, as well as voltage instability within a power system. To achieve the flexible operation of the power system, Flexible Alternating Current Transmission System (FACTS) devices have been employed. The optimal location of FACTS devices influences the system's performance and significantly affects line/bus reactive power flows. Consequently, the line or bus voltage profiles have been improved, leading to a reduction in power losses. Particle Swarm Optimization (PSO) heuristic methods and HFPSO Hybrid heuristic methods have been used to identify the weakest bus/branch for the suitable placement of UPFC devices, improving voltage stability. This paper discusses a more significant reduction in power losses in a MATLAB environment. Flexible Alternating Current Transmission System (FACTS) devices address reactive power challenges in power systems and enhance operational flexibility. Strategic placement using Particle Swarm Optimization (PSO) and HFPSO Hybrid methods identifies weak points, optimizing Unified Power Flow Controller (UPFC) placement for improved voltage stability. UPFC integration strategically reduces real and reactive power losses, improving power transmission efficiency. This enhances line and bus voltage profiles, addressing instability and significantly reducing overall power losses. The paper offers a detailed analysis of the power system, highlighting the synergy between FACTS devices, heuristic optimization, and power loss reduction. Simulations in MATLAB validate the proposed methodology, demonstrating a noteworthy improvement in power system performance.

РАСЧЁТ ЭЛЕКТРИЧЕСКИХ РЕЖИМОВ СИСТЕМ ЭЛЕКТРОСНАБЖЕНИЯ

When solving the issues of creation and improvement of power supply systems, calculations of steady-state modes are the most common. Since power supply systems contain nonlinear elements, their steady state mode is described by nonlinear equations. Solving such equations is possible only by iterative methods, which is associated with the problem of convergence of the iterative process. The proposed method calculations of steady-state modes are the most common in solving the issues of creation and improvement of power supply systems, and the algorithms implementing it are relatively easy to program and provide the necessary speed and accuracy of calculations. They are designed to solve a number of practical problems related to the design and operation of complex closed power supply systems. Due to a number of features of electrical systems, which are inherent in the power supply systems of the agricultural and forestry complex, the convergence of the iterative process may be delayed and even not provided. In this regard, the authors proposed a direct calculation method with cyclic correction of the initial information for each cycle in order to take into account the nonlinearity of the elements of the electrical system. The proposed method is based on universal calculation formulas for determining eigenand mutual resistances, which are obtained as a result of transformation and solution of nodal equations

Разработка математической модели функционирования электротехнических комплексов релейной защиты цифровых подстанций

The issues of introduction of electrical digital substations in the Russian Federation are considered. An existing criteria analysis for assessing the modern relay protection devices efficiency is carried out and an assessment of their sufficiency is made. A mathematical model development of the digital substations relay protection complexes operation has been developed using the queuing theory, the graphs theory and Markov chains. The failure-free operation probability calculated value of the relay protection complexes corresponds to the long-term analysis data. This indicates that the mathematical model is correct. The proposed mathematical model makes it possible to take into account the impact of the maintenance quality on the digital substation relay protection complexes efficiency.

Coordinated Rotor-Side Control Strategy for Doubly-Fed Wind Turbine under Symmetrical and Asymmetrical Grid Faults

In order to solve the problems of rotor overvoltage, overcurrent and DC side voltage rise caused by grid voltage drops, a coordinated control strategy based on symmetrical and asymmetrical low voltage ride through of rotor side converter of the doubly-fed generator is proposed. When the power grid voltage drops symmetrically, the generator approximate equation under steady-state conditions is no longer applicable. Considering the dynamic process of stator current excitation, according to the change of stator flux and the depth of voltage drop, the system can dynamically provide reactive power support for parallel nodes and suppress the rise of DC side voltage and rotor over-current. When the grid voltage drops asymmetrically, the positive and negative sequence components are separated in the rotating coordinate system. The doubly fed generator model is established to suppress the rotor positive sequence current and negative sequence current respectively. At the same time, the output voltage limit of the converter is discussed, and the reference value is adjusted within the allowable output voltage range. In order to adapt to the occurrence of different types of power grid faults and complex operating conditions, a fast switching module of fault type detection and rotor control mode is designed to detect the type of power grid faults and voltage drop depth in real time and switch the rotor side control mode dynamically. Finally, the simulation model of the doubly fed wind turbine is constructed in Matlab/Simulink. The simulation results verify that the proposed control strategy can improve the low-voltage ride through performance of the system when dealing with the symmetrical and asymmetric voltage drop of the power grid and identify the power grid fault type and provide the correct control strategy.

Modern challenges of the digital ecosystem of transport and logistics

The modern stage in the development of the transport industry is characterized by changes in the traditional economic models of interaction between multiple participants in the provision of transport and logistics services. These changes are caused by digital technologies that form a new digital outline of the business models of the transport industry. The digital ecosystem of transport and logistics is the basis for the breakthrough development of the Russian economy and increasing its competitiveness. However, the digital update format does not offer ready-made solutions, its deployment is constrained by the lack of the necessary number of competent personnel, the high cost of implementing and maintaining digital tools, ensuring high reliability, data preservation and security. All this requires additional resources to overcome the emerging barriers with minimal losses. In this regard, the study of the stated topic is demanded and relevant. Therefore, the purpose of the current study is to systematize the main challenges that create imbalances in the pace and scale of modification of the digital circuit of the transport and logistics ecosystem of the Russian Federation. The need to systematize the challenges in creating the digital contour of the transport and logistics ecosystem is justified by the presence of multiple economic interests in this area, including socially significant ones. However, their multidirectional and contradictory nature hinders the rate of formation of a single trend of development of the transport complex and logistics activities of all participants providing services, as well as the creation of a single digital platform that accumulates the potential for effective interaction of transport complex operators. The study was conducted using general scientific methods of knowledge, such as: generalization and systematization of scientific and statistical data on the risks of the barrier environment in the digital transformation of the Russian transport industry, forming the main challenges of the digital ecosystem of transport and logistics, their comparative analysis, synthesis, application of systemic and functional approaches.

Development of transporter training simulator based on virtual reality and vehicle dynamics model

A transporter is a means of transportation that is widely used in heavy industries to move heavy loads called blocks. Because the transporter has a more complex operating system compared to the regular car, it takes a lot of time to become familiar with its operation. However, it is not easy to find a proper place and a transporter for training operators. As a result, the number of accidents caused by the operator's inexperience, such as block drops or collisions, is increasing every year. Therefore, in this study, a transporter training simulator based on virtual reality is developed to allow transporter operators to be trained anytime, anywhere without considering actual transporter and a special training place. This training simulator is composed of five modules. The first module is models of the transporter and the shipyard to be displayed in virtual reality. The second is implementation of the transporter operations such as lifting, lowering, and moving wheels. The third is vehicle dynamics model to implement realistic movement of the transporter. The fourth is the network function to simulate collaboration among workers. The fifth is the scenario module to simulate work situations that are similar to actual ones. By using the developed simulator, a scenario where the signalman and the operator collaborate to transport a block is successfully conducted.

Improving the design of autonomous lighting complexes

The general world trends in the creation and operation of modern autonomous lighting complexes for various purposes are considered, for which the main features of structural and design solutions are determined. The article analyses the experience of construction and operation of autonomous lighting complexes in Ukraine and calculates the main indicators of their efficiency. According to the results of the analysis, the main problems of operation of the investigated autonomous lighting complexes are identified and requirements for the technical characteristics and design of such complexes are formulated, depending on the purpose and specific climatic conditions of the territory where they are located. Based on the results obtained, the necessity of improving their design with the use of modern equipment and advanced control systems is substantiated. An improved design of autonomous lighting complexes is proposed for their operation under conditions of high wind loads and significant probabilities of ice and frost deposits formation, which involves the use of renewable energy sources and supports with increased mechanical strength. A comparison of different energy sources is made to ensure optimal electricity generation depending on the operating conditions and to meet the requirements for the duration of power supply to the local load. For the purpose of reliable and high-quality operation of the studied lighting complexes, the use of energy storage systems of various types and determination of their optimal capacity are substantiated. The expediency of using the towers made of composite materials to ensure an increased safety margin when operating an autonomous lighting complex in difficult climatic conditions is substantiated. The research of technical and economic parameters of the developed autonomous lighting complex in different operating conditions is carried out. The effectiveness of implementation and operation of the developed autonomous lighting complex in comparison with analogues is proved.