ВИЗНАЧЕННЯ ПАРАМЕТРІВ ФОТОЕЛЕКТРИЧНОЇ СИСТЕМИ З АКУМУЛЯТОРОМ ДЛЯ ПОТРЕБ ЛОКАЛЬНОГО ОБ’ЄКТУ

Purpose. Improving the methodology for determining the parameters of a photoelectric system with a battery for the needs of a local object using archival data of the generation of a photoelectric battery with planning the cost of energy consumption from the network for all seasons of the year.Methodology. Using an archive of data on the power generation of a photoelectric battery and analysis of energy processes in a photoelectric system with a battery using computer simulation.Findings. Calculated according to the archive data for five years, the average monthly values of photoelectric battery generation power for time intervals during the day determined according to tariff zones. Dependencies to determine the recommended average value load power of a local object at time intervals.Originality. It is proposed to determine the base schedule of the local facility and the parameters of the photoelectric system based on the average monthly values of photoelectric battery generation in the transition seasons – October, March and the expected cost of energy consumed from the grid during the year. The recalculation of the base value of power during the year is substantiated taking into account the duration of daylight. A method for determining the recommended load schedule of a local object with the formation of the battery charge according to the average monthly value of the photoelectric battery generation power at time intervals during the day, which are determined by archival data for the object location.Practical value. The obtained solutions are the basis for designing photoelectric systems with a battery to meet the needs of local objects.

МОДЕЛЮВАННЯ ЕНЕРГЕТИЧНИХ ПРОЦЕСІВ В ГІБРИДНІЙ ФОТОЕЛЕКТРИЧНІЙ СИСТЕМІ З АКУМУЛЯТОРОМ ДЛЯ ПОТРЕБ ЛОКАЛЬНОГО ОБ’ЄКТУ

Purpose. Improving the efficiency of a hybrid photoelectric system with a rechargeable battery for the needs of the local object by improving the management of the forecast with simulation of energy processes in the system, development of principles for the implementation of energy management systems.Methodology. Analysis of energy processes in the electrical circuits of the photoelectric system with the formalization of the principles of control reconfiguration and the use of computer modeling based on archival data of photoelectric battery generation to evaluate the efficiency of energy management.Findings. Block structures and the general structure of the model of energy processes in the system for the daily cycle of work with an estimation of the cost of electricity consumed from the grid have been developed. The principles of control modes and power consumption of the system according to the forecast of photoelectric battery generation were formalized.Originality. The principles of setting the battery current according to the forecast of photoelectric energy generation, the state of battery charge and the power limit consumed from the grid have been improved. It will help to make better use of the energy of the photoelectric battery and reduce the consumption of electricity from the grid. The mathematical model of the rechargeable battery, built on the manufacturer's catalog data has been improved. The formalization of energy processes in the system with the use of additional variables, which provide reconfiguration of work with regulation of photoelectric battery generation or battery current and taking into account the power limit consumed from the grid is substantiated.Practical value. The obtained solutions are the basis for designing photoelectric control systems to meet the needs of local objects.

N-jettiness in electroweak high-energy processes

We study N-jettiness in electroweak processes at extreme high energies, in which the mass of the weak gauge bosons can be regarded as small. The description of the scattering process such as e−e+ → μ−μ+ + X is similar to QCD. The incoming leptons emit initial-state radiation and the resultant particles, highly off-shell, participate in the hard scattering, which are expressed by the beam functions. After the hard scattering, the final- state leptons or leptonic jets are observed, described by the fragmenting jet functions or the jet functions respectively. At present, electroweak processes are prevailed by the processes induced by the strong interaction, but they will be relevant at future e−e+ colliders at high energy. The main difference between QCD and electroweak processes is that the initial- and final-state particles should appear in the form of hadrons, that is, color singlets in QCD, while there can be weak nonsinglets as well in electroweak interactions. We analyze the factorization theorems for the N-jettiness in e−e+ → μ−μ+ + X, and compute the factorized parts to next-to-leading logarithmic accuracy. To simplify the comparison with QCD, we only consider the SU(2)W gauge interaction, and the extension to the Standard Model is straightforward. Put it in a different way, it corresponds to an imaginary world in which colored particles can be observed in QCD, and the richer structure of effective theories is probed. Various nonzero nonsinglet matrix elements are interwoven to produce the factorized results, in contrast to QCD in which there are only contributions from the singlets. Another distinct feature is that the rapidity divergence is prevalent in the contributions from weak nonsinglets due to the different group theory factors between the real and virtual corrections. We verify that the rapidity divergence cancels in all the contributions with a different number of nonsinglet channels. We also consider the renormalization group evolution of each factorized part to resum large logarithms, which are distinct from QCD.

Energetics of the lower tropospheric eddies in wave number domain during northern summer monsoon

Lower tropospheric energetics and energy processes of zonal waves for three consecutive northern summer monsoon seasons of 1994, 1995 and 1996 are presented. Fourier technique is used. The features of the tropical and extra-tropical regions are very well reflected by the data set used for this study. The results do not show marked year to year variations in the pattern of energy processes. The character of energy processes differs significantly from one latitudinal region to other. Wave to zonal mean flow interactions and wave to wave interactions are almost opposite in character over R1 (10° S -10° N) and R2 (10° N -30° N). L (n) interaction indicates that R1 acts as source of kinetic energy to the waves over R2. Particularly, standing waves I and 2 over RI are the major source of kinetic energy to the waves over R2. Extra-tropical region R3 (30° N -50° N) is dominated by transient waves while tropical regions R1 and R2 are dominated by standing waves. Medium and short waves have significant contributions over extra-tropical region whereas tropical regions are dominated by long waves. The pattern of energy processes over R3 is somewhat similar to the energy processes over R1. This is because both the regions have anti-cyclonic lateral shear.

Special Issue on “Dynamic Modeling and Control in Chemical and Energy Processes”

Recent energy policies have enforced the need to minimize GHG emissions [...]

Power consumption management method objects of the regional electrotechnical complex based on the accounting of an additional resource

В настоящей статье рассматривается метод управления электропотреблением объектов регионального электротехнического комплекса на основе учёта добавочного ресурса. Актуальность его разработки обусловлена существующими тенденциями развития цифровой экономики во всех отраслях региональной экономики, в том числе - в припортовых комплексах региона. Важной составляющей современной цифровой экономики выступает цифровая энергетика, позволяющая регулировать управление бизнес-процессами в энергетической сфере. Обеспечение электроэнергией регионального припортового комплекса осуществляется с помощью двух подсистем регионального электроэнергетического комплекса: регионального транспортно-сетевого комплекса и регионального электротехнического комплекса. Важной задачей развития цифровой энергетики является разработка и внедрение цифровых сервисов. На сегодняшний день в региональных транспортно-сетевом и электротехническом комплексах внедрено значительное число цифровых сервисов. Однако они носят преимущественно «учётный» характер, в результате чего не способны в полной мере реализовать управление энергетическими процессами, существенно сократить затраты и повысить уровень энергоэффективности. Предлагаемый метод включает в себя модель и методики, позволяющие установить границы начала и завершения бифуркационных процессов, реализовать прогнозирование электропотребления объектов РТСК и РЭК на основе учёта добавочного ресурса и осуществить режимное нормирование электропотребления объектов, не нарушая технологического процесса. Применение данного метода может быть осуществлено в рамках динамического моделирования процесса электропотребления, исследования бифуркационных процессов, а также в качестве теоретической основы для создания сервисного программного обеспечения цифровых платформ управления электропотреблением для РТСК, РЭК и региональных припортовых комплексов. This article discusses the method of managing the electrical consumption of a regional electrical complex based on the accounting of an additional resource. The relevance of its development is due to the existing trends in the development of the digital economy in all sectors of the region, including in regional port complexes. An important component of the digital economy is digital energy, which allows regulating the management of business processes in the energy sector. The provision of electricity to the regional port complex is carried out with the help of two subsystems of the regional electric power complex: the regional transport and network complex and the regional electrical complex. An important task of the development of digital energy is the development and implementation of digital services. To date, a fairly large number of digital services have been introduced in RTSC and REC. However, they are more "accounting" in nature and are unable to fully implement the management of energy processes in order to increase energy efficiency and reduce costs. The proposed method includes a model and methods that allow determining the boundaries of the beginning and completion of bifurcation processes, implementing forecasting of electrical consumption of RTSC and REC facilities based on accounting for additional resources and implementing regime rationing of electrical consumption of facilities without disrupting the technological process. The application of this method can be carried out within the framework of dynamic modeling of the electrical consumption process, the study of bifurcation processes, as well as a theoretical basis for creating service software for digital electrical consumption management platforms for the regional transport and network complex, regional electrical grid complex and regional port complexes.