Возобновляемые источники энергии (ВИЭ) являются экологически чистыми и оказывают меньшее воздейст... more Возобновляемые источники энергии (ВИЭ) являются экологически чистыми и оказывают меньшее воздействие на окружающую среду, чем традиционные источники энергии [1]. ВИЭ, такие как ветер, солнце, биомасса, гидроэнергия и геотермальная энергия, доступны в природе как неистощимый источник. Солнечный фотоэлектрический элемент (фотоэлемент) – это электронное устройство, которое, по сути, преобразует солнечную энергию солнечного света в электрическую энергию или электричество [2-4].
фотоэлектрических панелей является более экономичным методом, используемым для повышения производ... more фотоэлектрических панелей является более экономичным методом, используемым для повышения производительности фотоэлектрических панелей [1-3]. Двойная система требует оптимизации скорости воздушного потока для достижения значительного охлаждения фотогальванических элементов [4]. Экспериментальные результаты фасада здания со встроенным фотогальваническим модулем показали, что охлаждение ячеек улучшается, когда воздух проходит над двумя фотогальваническими поверхностями [5-7]. Водяной насос с двигателем постоянного тока и сопла малого диаметра обеспечивают слой воды поверх фотоэлектрического модуля, который имеет три основных преимущества: снижается температура ячейки, увеличивается падающее излучение за счет преломления из лучения водой, а поверхность постоянно очищается. по течению воды [8-10]. Точность модели находится в пределах 6 К от измеренных значений температуры.
Федеральное государственное автономное образовательное учреждение высшего образования «Крымский федеральный университет имени В. И. Вернадского», Jul 19, 2021
Understanding the full aspects of hybrid grid operation that includes electrical and mechanical a... more Understanding the full aspects of hybrid grid operation that includes electrical and mechanical aspects are very critical to completely study this perspective operation. Therefore, this paper presents a hybrid generation system that is supplied with a Stirling engine (SE) and a wind turbine. The entire system is linked to a grid over a common dc bus. After combining wind turbine with the Stirling, an effi cient hybrid system is created due to the fact the Stirling considered to have effi ciency more than photo voltaic array. In order to structure the wind turbine mechanical parts, Stirling engine, electrical parts, Fatigue, Aerodynamics, Structures, and Turbulence (FAST) and Simulink/MATLAB are used. Moreover, voltage source converter is used to develop fi eld-oriented control method. Nevertheless, determining the generators reference spear speed in the system hybrid is achieved through implementing the power signal feedback method. More effi ciently, the Wind Turbine and Stirling engine utilize permanent magnet synchronous generator. The simulation outcomes present a novel hybrid generation system with Wind Turbine and Stirling can operate such as other hybrid systems with a very suitable performance.
В настоящей статье была предложена, разработана и проанализирована гибридная система фотоэлектрич... more В настоящей статье была предложена, разработана и проанализирована гибридная система фотоэлектрических и ветроэнергетических мощностей, связанных с энергосистемой, с целью обеспечения системы освещения, активной мощности и компенсации реактивной мощности. Кроме того, были применены высокоточные и быстро реагирующие методы для максимального отслеживания мощности и управления в ветряных турбинах. Результаты моделирования наводят на мысль о подходящем отклике системы управления, улучшении качества электроэнергии за счет обеспечения нагрузки реактивной мощностью. Соответствующая скорость и точность наложенных изменений и отсутствие трансформаторов являются среди других достоинств предлагаемой системы.
An innovative hybrid microgeneration unit based on renewable energy sources has been proposed, wh... more An innovative hybrid microgeneration unit based on renewable energy sources has been proposed, which was developed for full integration into a specialized LED street lighting system. A key feature of this new system is the placement of several wind turbines in the very structure of the plant, and a photovoltaic panel is also integrated to generate electricity. Electricity is generated by energy conversion equipment along with a storage device that provides lighting even on calm nights. The main application of this project is stand-alone street lighting, but a grid-connected option is also possible, making the system compatible with microgrid concepts. A full-scale prototype of the lighting generator system was installed. A Matlab simulation was used to test the operating state of the proposed system for hybrid input power and battery voltage. The studies carried out have shown a significant efficiency in the generation of electrical energy when using a system for monitoring parameters and energy storage in wind and solar installations. The use of a hybrid wind-solar system makes it possible to effectively control the generation of electrical energy to maintain the required power values in the local network, as well as control over current, frequency and voltage. When using the proposed hybrid systems, the energy characteristics of installations are significantly increased, generation and the ability to accumulate a significant amount of electrical energy increase. The possibilities of increasing the efficiency of the operation of wind-solar hybrid systems for converting the energy of the wind flow and solar radiation will help to significantly increase the environmental component during the operation of large energy complexes in large cities and resort and recreational systems.
In this research, the study theory of system includes the use of an important source of renewable... more In this research, the study theory of system includes the use of an important source of renewable energy sources (solar source) and linking this system with an electrical load. The world is witnessing a significant rise in fossil fuel prices since the ending of the 20th century and now, this rise in price increases with the decrease in inventory day after day. Therefore, it turned that the field of attention to researchers of power generation to expand in non-conventional energy sources (new and renewable energy sources).New and renewable energy is inexhaustible in use because they rely on renewable natural resources. The mathematical model is an important part of the detailed study for PV systems. As well as study models for photovoltaic systems via the MATLAB/Simulink, this programming environment contains many models for renewable systems intended to perform simulation and analysis.Solar cells system needs to apply the MPPT algorithm due to the instability of external circumstanc...
Работа ветроэлектрических установок недостаточно стабильна и надежна, что связано с непостоянство... more Работа ветроэлектрических установок недостаточно стабильна и надежна, что связано с непостоянством ветрового потока и изменчивостью направления ветра. Однако мировая ветроэнергетика развивается довольно большими темпами, и в перспективе доля генерирующих мощностей, связанных с преобразованием ветрового потока, составит значительную часть всей электроэнергетики. Для устранения подобных факторов при проектировании работы ветротурбин необходимо более полно использовать системы автоматического регулирования не только параметров, связанных с работой механических частей, но и электрических характеристик ветроустановок на основе силовой электроники.Выработка электрической энергии путем преобразования ветрового потока стала основой возобновляемой энергетики в энергосистемах всего мира. Современные системы ветроэлектрических установок (ВЭУ), преобразующие ветровые потоки с различной скоростью и расположенные на крупных ветроэлектрических станциях, нашли лучшее признание и захватили большую ч...
Reaching the non electrified rural population is currently not possible through the extension of ... more Reaching the non electrified rural population is currently not possible through the extension of the grid, since the connection is neither economically feasible, nor encouraged by the main actors. Further, the increases in oil prices and the unbearable impacts of this energy source on the users and on the environment, are slowly removing conventional energy solutions, such as fuel genets based systems, from the rural development agendas.
Для увеличения в мировом энергетическом комплексе доли возобновляемой альтернативной энергетики и... more Для увеличения в мировом энергетическом комплексе доли возобновляемой альтернативной энергетики и сокращения потребления традиционных топливных энергетических ресурсов необходимо проводить исследования потенциала возобновляемой энергетики в развивающихся странах. Эти государства сильно зависимы от импорта энергетических установок и технологий. В результате они недостаточно развивают свой энергокомплекс за счет использования альтернативной энергетики. Это происходит в том числе из-за недостаточного прогнозирования и оценки потенциала возобновляемых энергоресурсов на своей территории. Возобновляемые источники энергии призваны играть большую роль в сокращении выбросов с использованием альтернативных источников электроэнергии, таких как энергия ветраПроведено исследование данных о скорости ветра в различных районах Ирака. Данные показывают, что город Алхай, где фиксировались средние значения скорости ветра по годам, расположенный на юге Ирака, идеально подходит для создания проектной ве...
This paper is concerned with the problem of water shortage in northern Crimea. It shows that the ... more This paper is concerned with the problem of water shortage in northern Crimea. It shows that the Crimean Peninsula lacks access to fresh water from natural sources. For decades, water supply was provided mostly from the Dnieper River via the North Crimean Canal. An emergency situation arose in water supply in Crimea after the canal was shut down. It has been shown that seawater desalination from renewables is the only reliable way to tackle the problem. The work reviews perspective desalination methods, suggests a new schematic of a desalination complex based on Wind Energy Marine Units, and determines key parameters of the complex.
This paper presents a brief analysis of the photovoltaic (PV) modules that are currently commerci... more This paper presents a brief analysis of the photovoltaic (PV) modules that are currently commercially available. The most used calculation formulas and measurement procedures used for evaluating the power characteristics of photovoltaic PV modules are given. The possible causes of power losses of solar cells and modules are described, including losses caused by design features. The theoretical calculations and experimental results of measuring the characteristics of silicon PV arrays with changing surface irradiance are compared. The calculated and experimental dependences of the power output variation of the ISM-50 photovoltaic module with changing its tilt angle are presented. It is shown that there is a significant discrepancy between theoretical studies and experimental results. A hypothesis has been put forward about the dependence of a real decrease in power characteristics and refraction indices of PV array protective coatings. An adjustment factor is proposed taking into account the decrease in the solar radiation output on the silicon photocell surface when passing through the antireflective protective coatings of the PV module. The conclusions drawn from the results of this work indicate that the identified factors affecting the electricity generation by photovoltaic converters need to be considered.
This paper is concerned with the issue of the efficiency of sea wave energy conversion. It is sho... more This paper is concerned with the issue of the efficiency of sea wave energy conversion. It is shown that the efficiency increases significantly if a low-damped mechanical oscillator, which is adapted to a wave power spectrum, is used as a primary converter. Two major types of oscillators are considered. The pendulum-type converter is found to be the most promising. A new schematic of a pendulum-type converter is suggested and briefly described. The converter consists of two oscillators adjusted to work in resonance mode. The first one includes a ballast-controlled floating platform pitching on sea waves. The second oscillator is a long sector-shaped pendulum located on the floating platform. The use of sea wave energy converters is promising in regard to the widespread use of renewable sources and elimination of the environmental impact of fossil fuel consumption in coastal regions. Various systems have been developed and projects implemented in this field.
The construction and operation of large solar power plants (SPPs) and the dependence of their pro... more The construction and operation of large solar power plants (SPPs) and the dependence of their production on light and other meteorological factors leads to a strong dependence of the operation modes of the Republic of Crimea and Sevastopol power system on meteorological factors. Today, given that the share of solar power plants is about 30% of the total installed capacity, it is necessary to solve the problems that have a great impact on the power system operating modes. With large output capacity of the solar power plant, the operator has to give commands to turn off the generating equipment of thermal power plants. In power systems with a large share of solar generation, it is necessary to solve this problem by improving the generated power predicting methods, as it will reduce the dependence of operating modes on weather factors and increase the reliability of the power system. The paper discusses the use of hybrid predicting methods that imply taking into account the possibility of the weather scenarios simulation, advanced cloud-based image processing technology, and close-to-real-time cloud motion surveillance cameras. There was an experimental software created that selects coefficients of set configuration time series. In combination with the conservative methods, it makes predicting the SPP Perovo output more accurate. Taken together, the chosen methods of predicting solar power generation capacity in the power system of the Republic of Crimea and Sevastopol ensure not only stability of the power system as a whole, but also the maximum efficiency of power plants, allow to accelerate the integration of solar power plants into the power system, and have positive effects on the environment.
This paper considers the structure of the regional energy supply of Crimea and presents the chara... more This paper considers the structure of the regional energy supply of Crimea and presents the characteristics of the main groups of regional electricity producers, including combined heat and power plants, mobile gas turbine power plants, renewable energy sources, and backup power sources. It is proposed, depending on the purpose of calculations in the context of the transportation problem under consideration, to use average actual rates for a given period with energy suppliers as tariffs (the calculation purpose is to reduce the electricity production and transportation cost), as well as conditional qualitative assessments, such as “fines” (the purpose is to improve the environmental friendliness and reliability of the system as a whole). The influence of the produced solar plant power on the operating modes of the Crimean energy system is assessed. The solar power production optimization technique that affects the reliability and quality of power supply is developed. Various energy supply scenarios for Crimea are generated, including peak and average power consumption modes with various options for solar activity, season, including and excluding energy sources under construction, and off-season repair of power sources. Based on the calculation data, the reliability of the regional energy system is estimated for various power supply scenarios, as well as the need to use an energy bridge for a power exchange with the mainland.
Power supply to consumers, especially in remote areas, is often subject to emergency power outage... more Power supply to consumers, especially in remote areas, is often subject to emergency power outages. This leads to numerous problems such as the breakdown of household appliances and electronics, the inability to provide vital functions in homes and special institutions, and production failure. Also, grid companies sometimes cannot efficiently provide energy to private consumers due to insufficient capacity of the power grid. This journal discusses the use of power plants on alternative energy sources and systems of accumulation of electric energy connected to renewable energy sources. Such systems can be used in parallel with the existing electric power grid, as well as directly by autonomous consumers. This journal also describes the possibility of providing electric power to individual consumers using solar panels in combination with a system of accumulator batteries. The process of charge–discharge of capacitive batteries in the photovoltaic module–battery system is studied in order to increase the efficiency of low-power autonomous power plants. Studies show an increase in the efficiency of the system designed for the individual consumer by 30%, as well as the possibility of uninterrupted operation. The proposed model of the combined photovoltaic and storage system avoids the problems associated with emergency power outages. More importantly, for various Russian Federation regions that are neither close to the generating facilities nor have reliable uninterrupted electricity supply, the presented system can significantly extend both the time of efficient use of energy resources and the service life of the equipment.
Возобновляемые источники энергии (ВИЭ) являются экологически чистыми и оказывают меньшее воздейст... more Возобновляемые источники энергии (ВИЭ) являются экологически чистыми и оказывают меньшее воздействие на окружающую среду, чем традиционные источники энергии [1]. ВИЭ, такие как ветер, солнце, биомасса, гидроэнергия и геотермальная энергия, доступны в природе как неистощимый источник. Солнечный фотоэлектрический элемент (фотоэлемент) – это электронное устройство, которое, по сути, преобразует солнечную энергию солнечного света в электрическую энергию или электричество [2-4].
фотоэлектрических панелей является более экономичным методом, используемым для повышения производ... more фотоэлектрических панелей является более экономичным методом, используемым для повышения производительности фотоэлектрических панелей [1-3]. Двойная система требует оптимизации скорости воздушного потока для достижения значительного охлаждения фотогальванических элементов [4]. Экспериментальные результаты фасада здания со встроенным фотогальваническим модулем показали, что охлаждение ячеек улучшается, когда воздух проходит над двумя фотогальваническими поверхностями [5-7]. Водяной насос с двигателем постоянного тока и сопла малого диаметра обеспечивают слой воды поверх фотоэлектрического модуля, который имеет три основных преимущества: снижается температура ячейки, увеличивается падающее излучение за счет преломления из лучения водой, а поверхность постоянно очищается. по течению воды [8-10]. Точность модели находится в пределах 6 К от измеренных значений температуры.
Федеральное государственное автономное образовательное учреждение высшего образования «Крымский федеральный университет имени В. И. Вернадского», Jul 19, 2021
Understanding the full aspects of hybrid grid operation that includes electrical and mechanical a... more Understanding the full aspects of hybrid grid operation that includes electrical and mechanical aspects are very critical to completely study this perspective operation. Therefore, this paper presents a hybrid generation system that is supplied with a Stirling engine (SE) and a wind turbine. The entire system is linked to a grid over a common dc bus. After combining wind turbine with the Stirling, an effi cient hybrid system is created due to the fact the Stirling considered to have effi ciency more than photo voltaic array. In order to structure the wind turbine mechanical parts, Stirling engine, electrical parts, Fatigue, Aerodynamics, Structures, and Turbulence (FAST) and Simulink/MATLAB are used. Moreover, voltage source converter is used to develop fi eld-oriented control method. Nevertheless, determining the generators reference spear speed in the system hybrid is achieved through implementing the power signal feedback method. More effi ciently, the Wind Turbine and Stirling engine utilize permanent magnet synchronous generator. The simulation outcomes present a novel hybrid generation system with Wind Turbine and Stirling can operate such as other hybrid systems with a very suitable performance.
В настоящей статье была предложена, разработана и проанализирована гибридная система фотоэлектрич... more В настоящей статье была предложена, разработана и проанализирована гибридная система фотоэлектрических и ветроэнергетических мощностей, связанных с энергосистемой, с целью обеспечения системы освещения, активной мощности и компенсации реактивной мощности. Кроме того, были применены высокоточные и быстро реагирующие методы для максимального отслеживания мощности и управления в ветряных турбинах. Результаты моделирования наводят на мысль о подходящем отклике системы управления, улучшении качества электроэнергии за счет обеспечения нагрузки реактивной мощностью. Соответствующая скорость и точность наложенных изменений и отсутствие трансформаторов являются среди других достоинств предлагаемой системы.
An innovative hybrid microgeneration unit based on renewable energy sources has been proposed, wh... more An innovative hybrid microgeneration unit based on renewable energy sources has been proposed, which was developed for full integration into a specialized LED street lighting system. A key feature of this new system is the placement of several wind turbines in the very structure of the plant, and a photovoltaic panel is also integrated to generate electricity. Electricity is generated by energy conversion equipment along with a storage device that provides lighting even on calm nights. The main application of this project is stand-alone street lighting, but a grid-connected option is also possible, making the system compatible with microgrid concepts. A full-scale prototype of the lighting generator system was installed. A Matlab simulation was used to test the operating state of the proposed system for hybrid input power and battery voltage. The studies carried out have shown a significant efficiency in the generation of electrical energy when using a system for monitoring parameters and energy storage in wind and solar installations. The use of a hybrid wind-solar system makes it possible to effectively control the generation of electrical energy to maintain the required power values in the local network, as well as control over current, frequency and voltage. When using the proposed hybrid systems, the energy characteristics of installations are significantly increased, generation and the ability to accumulate a significant amount of electrical energy increase. The possibilities of increasing the efficiency of the operation of wind-solar hybrid systems for converting the energy of the wind flow and solar radiation will help to significantly increase the environmental component during the operation of large energy complexes in large cities and resort and recreational systems.
In this research, the study theory of system includes the use of an important source of renewable... more In this research, the study theory of system includes the use of an important source of renewable energy sources (solar source) and linking this system with an electrical load. The world is witnessing a significant rise in fossil fuel prices since the ending of the 20th century and now, this rise in price increases with the decrease in inventory day after day. Therefore, it turned that the field of attention to researchers of power generation to expand in non-conventional energy sources (new and renewable energy sources).New and renewable energy is inexhaustible in use because they rely on renewable natural resources. The mathematical model is an important part of the detailed study for PV systems. As well as study models for photovoltaic systems via the MATLAB/Simulink, this programming environment contains many models for renewable systems intended to perform simulation and analysis.Solar cells system needs to apply the MPPT algorithm due to the instability of external circumstanc...
Работа ветроэлектрических установок недостаточно стабильна и надежна, что связано с непостоянство... more Работа ветроэлектрических установок недостаточно стабильна и надежна, что связано с непостоянством ветрового потока и изменчивостью направления ветра. Однако мировая ветроэнергетика развивается довольно большими темпами, и в перспективе доля генерирующих мощностей, связанных с преобразованием ветрового потока, составит значительную часть всей электроэнергетики. Для устранения подобных факторов при проектировании работы ветротурбин необходимо более полно использовать системы автоматического регулирования не только параметров, связанных с работой механических частей, но и электрических характеристик ветроустановок на основе силовой электроники.Выработка электрической энергии путем преобразования ветрового потока стала основой возобновляемой энергетики в энергосистемах всего мира. Современные системы ветроэлектрических установок (ВЭУ), преобразующие ветровые потоки с различной скоростью и расположенные на крупных ветроэлектрических станциях, нашли лучшее признание и захватили большую ч...
Reaching the non electrified rural population is currently not possible through the extension of ... more Reaching the non electrified rural population is currently not possible through the extension of the grid, since the connection is neither economically feasible, nor encouraged by the main actors. Further, the increases in oil prices and the unbearable impacts of this energy source on the users and on the environment, are slowly removing conventional energy solutions, such as fuel genets based systems, from the rural development agendas.
Для увеличения в мировом энергетическом комплексе доли возобновляемой альтернативной энергетики и... more Для увеличения в мировом энергетическом комплексе доли возобновляемой альтернативной энергетики и сокращения потребления традиционных топливных энергетических ресурсов необходимо проводить исследования потенциала возобновляемой энергетики в развивающихся странах. Эти государства сильно зависимы от импорта энергетических установок и технологий. В результате они недостаточно развивают свой энергокомплекс за счет использования альтернативной энергетики. Это происходит в том числе из-за недостаточного прогнозирования и оценки потенциала возобновляемых энергоресурсов на своей территории. Возобновляемые источники энергии призваны играть большую роль в сокращении выбросов с использованием альтернативных источников электроэнергии, таких как энергия ветраПроведено исследование данных о скорости ветра в различных районах Ирака. Данные показывают, что город Алхай, где фиксировались средние значения скорости ветра по годам, расположенный на юге Ирака, идеально подходит для создания проектной ве...
This paper is concerned with the problem of water shortage in northern Crimea. It shows that the ... more This paper is concerned with the problem of water shortage in northern Crimea. It shows that the Crimean Peninsula lacks access to fresh water from natural sources. For decades, water supply was provided mostly from the Dnieper River via the North Crimean Canal. An emergency situation arose in water supply in Crimea after the canal was shut down. It has been shown that seawater desalination from renewables is the only reliable way to tackle the problem. The work reviews perspective desalination methods, suggests a new schematic of a desalination complex based on Wind Energy Marine Units, and determines key parameters of the complex.
This paper presents a brief analysis of the photovoltaic (PV) modules that are currently commerci... more This paper presents a brief analysis of the photovoltaic (PV) modules that are currently commercially available. The most used calculation formulas and measurement procedures used for evaluating the power characteristics of photovoltaic PV modules are given. The possible causes of power losses of solar cells and modules are described, including losses caused by design features. The theoretical calculations and experimental results of measuring the characteristics of silicon PV arrays with changing surface irradiance are compared. The calculated and experimental dependences of the power output variation of the ISM-50 photovoltaic module with changing its tilt angle are presented. It is shown that there is a significant discrepancy between theoretical studies and experimental results. A hypothesis has been put forward about the dependence of a real decrease in power characteristics and refraction indices of PV array protective coatings. An adjustment factor is proposed taking into account the decrease in the solar radiation output on the silicon photocell surface when passing through the antireflective protective coatings of the PV module. The conclusions drawn from the results of this work indicate that the identified factors affecting the electricity generation by photovoltaic converters need to be considered.
This paper is concerned with the issue of the efficiency of sea wave energy conversion. It is sho... more This paper is concerned with the issue of the efficiency of sea wave energy conversion. It is shown that the efficiency increases significantly if a low-damped mechanical oscillator, which is adapted to a wave power spectrum, is used as a primary converter. Two major types of oscillators are considered. The pendulum-type converter is found to be the most promising. A new schematic of a pendulum-type converter is suggested and briefly described. The converter consists of two oscillators adjusted to work in resonance mode. The first one includes a ballast-controlled floating platform pitching on sea waves. The second oscillator is a long sector-shaped pendulum located on the floating platform. The use of sea wave energy converters is promising in regard to the widespread use of renewable sources and elimination of the environmental impact of fossil fuel consumption in coastal regions. Various systems have been developed and projects implemented in this field.
The construction and operation of large solar power plants (SPPs) and the dependence of their pro... more The construction and operation of large solar power plants (SPPs) and the dependence of their production on light and other meteorological factors leads to a strong dependence of the operation modes of the Republic of Crimea and Sevastopol power system on meteorological factors. Today, given that the share of solar power plants is about 30% of the total installed capacity, it is necessary to solve the problems that have a great impact on the power system operating modes. With large output capacity of the solar power plant, the operator has to give commands to turn off the generating equipment of thermal power plants. In power systems with a large share of solar generation, it is necessary to solve this problem by improving the generated power predicting methods, as it will reduce the dependence of operating modes on weather factors and increase the reliability of the power system. The paper discusses the use of hybrid predicting methods that imply taking into account the possibility of the weather scenarios simulation, advanced cloud-based image processing technology, and close-to-real-time cloud motion surveillance cameras. There was an experimental software created that selects coefficients of set configuration time series. In combination with the conservative methods, it makes predicting the SPP Perovo output more accurate. Taken together, the chosen methods of predicting solar power generation capacity in the power system of the Republic of Crimea and Sevastopol ensure not only stability of the power system as a whole, but also the maximum efficiency of power plants, allow to accelerate the integration of solar power plants into the power system, and have positive effects on the environment.
This paper considers the structure of the regional energy supply of Crimea and presents the chara... more This paper considers the structure of the regional energy supply of Crimea and presents the characteristics of the main groups of regional electricity producers, including combined heat and power plants, mobile gas turbine power plants, renewable energy sources, and backup power sources. It is proposed, depending on the purpose of calculations in the context of the transportation problem under consideration, to use average actual rates for a given period with energy suppliers as tariffs (the calculation purpose is to reduce the electricity production and transportation cost), as well as conditional qualitative assessments, such as “fines” (the purpose is to improve the environmental friendliness and reliability of the system as a whole). The influence of the produced solar plant power on the operating modes of the Crimean energy system is assessed. The solar power production optimization technique that affects the reliability and quality of power supply is developed. Various energy supply scenarios for Crimea are generated, including peak and average power consumption modes with various options for solar activity, season, including and excluding energy sources under construction, and off-season repair of power sources. Based on the calculation data, the reliability of the regional energy system is estimated for various power supply scenarios, as well as the need to use an energy bridge for a power exchange with the mainland.
Power supply to consumers, especially in remote areas, is often subject to emergency power outage... more Power supply to consumers, especially in remote areas, is often subject to emergency power outages. This leads to numerous problems such as the breakdown of household appliances and electronics, the inability to provide vital functions in homes and special institutions, and production failure. Also, grid companies sometimes cannot efficiently provide energy to private consumers due to insufficient capacity of the power grid. This journal discusses the use of power plants on alternative energy sources and systems of accumulation of electric energy connected to renewable energy sources. Such systems can be used in parallel with the existing electric power grid, as well as directly by autonomous consumers. This journal also describes the possibility of providing electric power to individual consumers using solar panels in combination with a system of accumulator batteries. The process of charge–discharge of capacitive batteries in the photovoltaic module–battery system is studied in order to increase the efficiency of low-power autonomous power plants. Studies show an increase in the efficiency of the system designed for the individual consumer by 30%, as well as the possibility of uninterrupted operation. The proposed model of the combined photovoltaic and storage system avoids the problems associated with emergency power outages. More importantly, for various Russian Federation regions that are neither close to the generating facilities nor have reliable uninterrupted electricity supply, the presented system can significantly extend both the time of efficient use of energy resources and the service life of the equipment.
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того, были применены высокоточные и быстро реагирующие методы для
максимального отслеживания мощности и управления в ветряных турбинах. Результаты моделирования наводят на мысль о подходящем отклике системы управления, улучшении качества электроэнергии за счет обеспечения нагрузки реактивной мощностью. Соответствующая скорость и точность наложенных изменений и отсутствие трансформаторов являются среди других достоинств предлагаемой системы.
of electrical energy when using a system for monitoring parameters and energy storage in wind and solar installations.
The use of a hybrid wind-solar system makes it possible to effectively control the generation of electrical energy to maintain the required power values in the local network, as well as control over current, frequency and voltage. When using the proposed hybrid systems, the energy characteristics of installations are significantly increased, generation
and the ability to accumulate a significant amount of electrical energy increase. The possibilities of increasing the efficiency of the operation of wind-solar hybrid systems for converting the energy of the wind flow and solar radiation will help to significantly increase the environmental component during the operation of large energy complexes in large cities and resort and recreational systems.
того, были применены высокоточные и быстро реагирующие методы для
максимального отслеживания мощности и управления в ветряных турбинах. Результаты моделирования наводят на мысль о подходящем отклике системы управления, улучшении качества электроэнергии за счет обеспечения нагрузки реактивной мощностью. Соответствующая скорость и точность наложенных изменений и отсутствие трансформаторов являются среди других достоинств предлагаемой системы.
of electrical energy when using a system for monitoring parameters and energy storage in wind and solar installations.
The use of a hybrid wind-solar system makes it possible to effectively control the generation of electrical energy to maintain the required power values in the local network, as well as control over current, frequency and voltage. When using the proposed hybrid systems, the energy characteristics of installations are significantly increased, generation
and the ability to accumulate a significant amount of electrical energy increase. The possibilities of increasing the efficiency of the operation of wind-solar hybrid systems for converting the energy of the wind flow and solar radiation will help to significantly increase the environmental component during the operation of large energy complexes in large cities and resort and recreational systems.