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Статті в журналах з теми "Акумуляція енергії"
Демченко, Володимир Георгійович, та Аліна Василівна Коник. "Основні аспекти процесів теплоакумулювання". Scientific Works 84, № 1 (14 грудня 2020): 48–53. http://dx.doi.org/10.15673/swonaft.v84i1.1868.
Повний текст джерелаDerii, V. O. "Technical Potential of Thermal Energy Accumulation in District Heating Networks." Problems of General Energy 2015, no. 1 (May 12, 2015): 34–38. http://dx.doi.org/10.15407/pge2015.01.034.
Повний текст джерелаDerii, V. O., and V. D. Bilоdid. "Limiting possibilities of the accumulation of thermal energy in centralized heat supply systems." Problems of General Energy 2019, no. 2 (June 21, 2019): 41–45. http://dx.doi.org/10.15407/pge2019.02.041.
Повний текст джерелаDerii, V. O. "Analysis of dynamic processes of heat energy accumulation in the centralized heating systems." Problems of General Energy 2015, no. 2 (2015): 57–61. http://dx.doi.org/10.15407/pge2015.02.057.
Повний текст джерелаRusyn, Iryna, Oleksandr Medvediev, Bohdan Valko та Serhii Nikitchuk. "Біоелектрика екосистем лісів, заболочених лук та агроекосистем Західної України". Наукові праці Лісівничої академії наук України, № 20 (4 червня 2020): 33–44. http://dx.doi.org/10.15421/412003.
Повний текст джерелаДем'яненко, Ю. І., та Т. В. Дуднік. "Сезонні акумулятори тепла в схемах теплопостачання приватних житлових будинків". Refrigeration Engineering and Technology 57, № 2 (30 червня 2021): 81–88. http://dx.doi.org/10.15673/ret.v57i2.2026.
Повний текст джерелаСтепанов, М. Т. "Реалізація керування за прогнозом на основі кубічного сплайну в замкнутих САР: концепція побудови і попередній аналіз роботи". Automation of technological and business processes 12, № 4 (30 грудня 2020): 4–11. http://dx.doi.org/10.15673/atbp.v12i4.1929.
Повний текст джерелаСтепанов, М. Т. "Замкнуті САР з прогнозуванням: аналіз альтернативних варіантів сруктур". Automation of technological and business processes 13, № 3 (4 листопада 2021): 38–48. http://dx.doi.org/10.15673/atbp.v13i3.2144.
Повний текст джерелаКорсак, Костянтин Віталійович. "Інтегроване "Природознавство" і прогрес вивчення фундаментальних наук в Україні". Theory and methods of learning fundamental disciplines in high school 1 (30 березня 2014): 111–17. http://dx.doi.org/10.55056/fund.v1i1.413.
Повний текст джерелаДисертації з теми "Акумуляція енергії"
Тверська, Яна Миколаївна, та Тетяна Анатоліївна Дяченко. "Сонячна енергетика як один з напрямів діяльності у сфері енергоефективності". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/41481.
Повний текст джерелаФедорчук, Станіслав Олегович. "Забезпечення заявлених графіків генерації відновлюваних джерел енергії на основі концепції віртуальних електричних станцій". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/42334.
Повний текст джерелаDissertation for the degree of candidate of technical sciences (doctor of philosophy) in specialty 05.14.02 - Electric power stations, networks and systems (141 - Power engineering, electrical engineering and electromechanics). – National Technical University "Kharkiv Polytechnic Institute", Ministry of Education and Science of Ukraine, Kharkiv, 2019. Annotation content. The dissertation is devoted to solving the actual scientific and applied problem in the providing the stated schedules of power generation at renewable energy sources (RES) through the use of storage systems and the concept of virtual power plants. According to the legislation of Ukraine, the Guaranteed Buyer must purchase all energy from renewable energy producers operating under the Green Tariff. The peculiarity of the operating modes of power plants on renewable sources is almost a direct dependence on weather conditions, which leads to deviations of the power value at the points of generation from the declared values. Therefore, there is a need to compensate for emerging imbalances. Using the concept of virtual power plants that combine RES, active consumers and storage systems into a single station with a common control system, it is possible to reduce imbalances at the generation point. This requires the creation of methods for selecting the optimal layout of the accumulation systems; control systems algorithms for virtual power plants and distributed storage systems; recommendations for their application to power grids that are just beginning to transition from traditional to intelligent and have a lack of maneuverability. The development of technical measures to ensure the declared schedules of solar power plants (SPP) and wind power plants (WPP) will allow them to be integrated into the generation schedule as base stations. This will make it possible to fulfill the obligations of all participants of the process and not violate the planned operating modes of other stations. The purpose and tasks of the study. The purpose of the study is to provide the stated schedules of power generation at the generation site of renewable energy sources through the use of storage systems and the concept of virtual power plants. To achieve the goal, the research objectives are defined: – to analyze the basic methods and means of providing the schedules of power outputs of renewable energy sources in Ukraine and the world and the factors that influence them; – to develop a mathematical model for the study of operating modes of hybrid power plants based on solar and wind power plants and to check the adequacy of the developed mathematical model; – clarify the methodology for calculating the cost of electricity from storage systems at the generation site, taking into account losses in energy transmission and conversion; – improve the method of optimization of the configuration of accumulation systems for balancing the generation of SES and WPP, while minimizing the specific cost of electricity; – carry out computer simulation of the operation of renewable energy power plants based on the weather data of the selected administrative district of Ukraine in order to determine the required configuration of the accumulation system based on the developed methodology; – to develop a computer model of a virtual power plant that combines advanced mathematical models of SES and WPP power generation, computer models of energy storage systems, imitation of active consumers and the energy market, as well as elements of hardware and computer modeling. – to develop an algorithm of operation of the information and control system of the virtual power plant, based on the specified method of calculating the cost of electricity, and to test it on a computer model of the virtual power plant. – explore the possibility of applying the concept of virtual power plants to provide daily generation schedules, taking into account the requirements of the Guaranteed Buyer. The object of research is the electromagnetic processes in grids with power plants based on renewable energy sources. Subject of research – electrical and information parameters of modes of equipment of power plants on renewable energy sources. Scientific novelty: 1) The mathematical model of the virtual power plant has been further developed, which differs from the existing ones by adding elements for communication with the real programmable logic controller OVEN 110-60 and based on the regression analysis the additional coefficient of the ratio of incoming weather conditions and the resulting power is taken into account the real characteristics of the equipment, which allowed to apply hardware and software modeling, to increase the accuracy of the calculation of the output active power of solar panels at 5% and conduct simulations of wind power station at wind speeds greater than nominal. 2) The method of calculating the cost of electricity, which is used to provide daily schedules of generation of RES on the basis of accumulation within one virtual power station, which differs from the known costs related to the location, installation and operation of additional equipment, which improves the accuracy of calculations, was further developed. and to increase the energy efficiency of such systems by utilizing their most relevant elements. 3) It is scientifically and technically grounded to use the concept of virtual power plants for providing daily schedules of generation of solar and wind power plants in the conditions of the energy market of Ukraine, which will allow to ensure the functioning of the Guaranteed Buyer mechanism with minimal use of additional maneuvering capacities. Practical value: The practical value of the work lies in the fact that methods of optimization of modes of operation of power plants on renewable energy sources by means of accumulation are determined on the basis of the performed researches. This approach will allow to establish the correspondence between the current and the predicted value of power at the point of generation, to form a schedule of load for traditional power plants without the need for additional maneuvering for compensation of power plants on renewable energy sources. In addition, research findings will help to increase the accuracy of electricity cost calculations at the point of generation from storage systems. The developed method of choosing the configuration of accumulation systems allows to determine the minimum required capacity of energy storage and their capacity, which will minimize the cost of equipment. The proposed algorithm for managing a distributed accumulation system allows to solve the problem of distributed balancing, and also takes into account the possibility of involving active consumers and the energy market in the balancing process. The results of the dissertation work were introduced: - at LEO LLC to calculate the minimum required volume of energy storage systems that will be recommended to provide the stated generation schedules of power plants than work based on green tariff; - in the educational process of the National Technical University "Kharkiv Polytechnic Institute" for students of specialties 141 specialties in specialization: 141- 01 "Power Plants" and 141-05 "Energy Management and Energy Efficient Technologies" during the teaching of lectures on disciplines "Electrical part of stations and substations "," ACTSP of stations and substations "," Renewable energy systems and secondary energy resources ", during writing of diploma projects, final qualification works. The dissertation is executed according to the plans of scientific researches of the National Technical University "Kharkiv Polytechnic Institute" of the Department of Power stations and general electrical engineering in accordance with the economic agreement « Methods of improvement of power systems» (state registration number - 0116U000885).
Грицан, Іван Іванович, та Ivan Hrytsan. "Розробка системи електротеплоакумуляційного обігріву навчального корпусу №5 ТНТУ ім. І. Пулюя". Bachelor's thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2021. http://elartu.tntu.edu.ua/handle/lib/35524.
Повний текст джерелаМетою роботи є розробка системи електротеплоакумуляційного електрообігріву навчального корпусу для забезпечення споживачів теплом та гарячою водою. Основним технічним рішенням роботи є впровадження енергоефективного облад-нання, а також технологічні особливості роботи системи електротеплоакумуляційного обігріву навчального корпусу, яка буде працювати за диференційованими тарифами на електроенергію. Аналіз актуальності проблемної ситуації, полягає у вирішенні питання, що може суттєво розширити масштаби розповсюдження електрообігріву в Україні. Одним з перспективних шляхів підвищення енергоефективності електрообігріву є перехід до електротеплоакумуляційних технологій. Тобто, заміна традиційних котелень на електроопалювальні акумуляційні комплекси з переведенням їх у режим споживання електроенергії тільки вночі з багатотарифним обліком електроенергії є одним з найдоцільніших засобів підвищення енергоефективності.
The aim of the work is to develop a system of electro-heat-accumulating electric heating of the educational building to provide consumers with heat and hot water. The main technical solution is the introduction of energy-efficient equipment, as well as technological features of the electric heating system of the educational building, which will operate at differentiated tariffs for electricity. Analysis of the urgency of the problem situation is to address the issue, which can significantly expand the distribution of electric heating in Ukraine. One of the promising ways to increase the energy efficiency of electric heating is the transition to electro-heat storage technologies. That is, the replacement of traditional boilers with electric heating storage complexes with their transfer to the mode of electricity consumption only at night with multi-tariff metering of electricity is one of the most appropriate means of improving energy efficiency.
ПEPEЛIК УМOВНИХ CКOPOЧEНЬ 6 ВCТУП 7 1 AНAЛIТИЧНИЙ POЗДIЛ 9 1.1 Oцiнкa мoжливocтeй впpoвaджeння eлeктpoтeплoaкумуляцiйних тeхнoлoгiй в Укpaїнi 9 1.2 Пpoблeми eлeктpoaкумуляцiйнoгo oбiгpiву 17 1.3 Пocтaнoвкa зaдaчi дo пpoeктувaння 20 2 ПPOEКТНO-КOНCТPУКТOPCЬКИЙ POЗДIЛ 21 2.1 Тeплoтeхнiчнa чacтинa 21 2.2 Eлeктpoтeхнiчнa чacтинa 28 2.3 Виcнoвки дo poздiлу 2 35 3 POЗPAХУНКOВO-ДOCЛIДНИЦЬКИЙ POЗДIЛ 36 3.1 Poзpaхунoк тeплoтeхнiчних пoкaзникiв нaвчaльнoгo кopпуcу №5 36 3.2 Poзpaхунoк тeплoвих втpaт, тa тeплoвoї пoтужнocтi пpoeктoвaнoї кoтeльнi 43 3.3 Тeхнiкo-eкoнoмiчнi poзpaхунки зaпpoвaджeння cиcтeми oпaлeння нaвчaль нoгo кopпуcу №5 50 3.4 Виcнoвки дo poздiлу 3 53 4 БEЗПEКA ЖИТТЄДIЯЛЬНOCТI ТA OCНOВИ OХOPOНИ ПPAЦI 54 4.1 Пpaвилa бeзпeки пpи eкcплуaтaцiї eлeктpoтeплoaкумуляцiйних cиcтeм 54 4.2 Poзpaхунoк зaхиcнoгo зaнулeння cиcтeми eлeктpoтeплoaкумуляцiйнoгo oбiгpiву 55 4.3 Бeзпeкa пpи гaciннi eлeктpoуcтaнoвoк 59 ЗAГAЛЬНI ВИCНOВКИ 61 ПEPEЛIК ПOCИЛAНЬ 63
Федорчук, Станіслав Олегович. "Забезпечення заявлених графіків генерації відновлюваних джерел енергії на основі концепції віртуальних електричних станцій". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/42333.
Повний текст джерелаDissertation for the degree of candidate of technical sciences in specialty 05.14.02 - power plants, networks and systems. - National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2019. The thesis is devoted to the solution of the current scientific and applied problem in the field of providing the declared schedules of generating power plants with renewable energy sources based on the concept of virtual power plants. In the dissertation work, the methods of providing the declared schedules of generating power plants on renewable energy sources are investigated. The expediency of using the concept of virtual power plants to solve the problem is justified. The use of various types of accumulation systems as one of the elements of a virtual power plant is investigated. The analysis of existing methods and state-of-the-art-practices of implementing intelligent networks was carried out, which made it possible to select the Smart Grid Architecture Model pattern as the basis for creating the necessary infrastructure. The analysis of existing methods for determining the optimal capacity of accumulation systems and their layout has been carried out that was used to calculate minimal capacity for providing the declared schedules of generation of PV and wind power plant each 1 MW for one of the administrative centers of Ukraine. The developed computer model for studying the operation of virtual power plants that include PV and wind power with energy storage and connections to PLC allows assessing potential unbalances during generation, checking the sufficiency of the capacity of accumulation systems for various tasks, as well as testing the operation of the control system. The methodology for calculating the cost of electrical energy from storage systems has been refined, taking into account the cost of energy losses during transmission and transformation, as well as additional factors associated with renting and servicing. An algorithm for managing a virtual power plant was developed, implemented and tested with real PLC connected to mathematical model, based on using the cheapest energy source for balancing taking into account the limitations of electrical networks, power lines and transforming equipment, access to the energy market for buying and selling energy and the ability to attract active consumers. The possibility of providing the declared schedules of generation of power plants based on the concept of virtual power plants on the example of conditions of one of the administrative centers of Ukraine is shown.