Method for Determination of Optimal Installed Capacity of Renewable Sources of Energy by the Criterion of Minimum Losses of Active Power in Distribution System

Лежнюк, Петро; Komar, Vacheslav; Sobchuk, Dmytro S.

doi:10.4236/epe.2014.63005

Cited by 7 publications

(9 citation statements)

References 6 publications

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“…the introduction of which determines the derivative SRU, which serves as a kind of addition to the heuristic SRU but introduces a broader concept of similarity criteria when they are normalized to an arbitrary number. The similarity criteria of the modified heuristic system of relative units differ from the criteria of the heuristic system itself and are determined [24]:…”

Section: Analysis Of Known Systems Of Relative Unitsmentioning

confidence: 99%

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Analysis Sensitivity Digital Twin Model of Energy Community PV system

Rubanenko,

Belik

2024

Preprint

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In the paper presented current energy situation in Ukraine after last attacks, issues and ways of decisions are analyzed. One of the approaches of increasing energy safety in Ukraine is decentralization of energy sources. Digitization, Decarbonization, Decentralization energy sector are main goals of rebuild plan Ukraine, and response goal of sustainable development EU. Main benefits of decentralization of energy sources are highlighted. Creation of energy community with distributed renewable energy sources is way of adopt to current situation in deficit centralized power supply. Digitization energy community realized through Digital Twin. Digital Twin concept helps design and control, modify during usage and develop recommendations for operation PV system. For optimization process of development energy community need take into account technical, meteorological, social, financial and ecology factors. For solving complex optimization task proposed use criterion programming method. Theory sensitivity is applied for optimization control task energy community. Model shelter-city energy community was developed and described.

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Section: Analysis Of Known Systems Of Relative Unitsmentioning

confidence: 99%

“…In order to establish the relationship between the variables of the direct and dual problems of CP (criterion programming), is used the fourth statement of the first duality theorem [24]:…”

Section: Analysis Of Known Systems Of Relative Unitsmentioning

confidence: 99%

Analysis Sensitivity Digital Twin Model of Energy Community PV system

Rubanenko,

Belik

2024

Preprint

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“…Задачами вибору ефективних режимів генерації потужності поновлюваних джерел та місця їх приєднання займаються як українські [5][6][7][8][9] так і зарубіжні [10][11][12][13][14][15][16] вчені. При цьому в якості критеріїв оптимізації використовують [5,10,11,16]…”

Section: Bodunovunclassified

Ensuring Permissible Voltage Levels in Low-Voltage Networks in the Design of Solar Power Plants for Private Households

Bodunov¹

2021

ЕНЕЕ

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One way to stimulate the development of renewable energy is preferential electricity tariffs for businesses, electricity consumers, including energy cooperatives and private households, whose generators produce electricity from alternative energy sources. Such a state policy exists both in Ukraine (the "green tariff") and in other countries (Feed-in tariffs). The simplified connection mechanism of generating power of private households and the fast payback period of solar power plants have led to a rapid increase in the number of such facilities. The peculiarity of network photovoltaic installations of private households is that the investment is proportional, and sometimes even less than the cost of additional reconstruction, for example, to increase the capacity of the electrical network, so, as a rule, their connection to low voltage networks is carried out without any additional changes of intersections of power lines. At the same time, according to the Law of Ukraine on the Electricity Market, the connection of generating installations to consumers, including private households, should not lead to deterioration of regulatory parameters of electricity quality. Another feature of these objects is the almost complete lack of information about the parameters of the electrical network. In the absence of reliable information, it becomes necessary to develop approximate methods for estimating the allowable capacity of solar power plants of private households depending on the place of connection, the parameters of the modern low-quality distribution network and modes of its operation. The article proposes the use of the distribution network model in the form of a line with evenly distributed load from the solar power plants in the form of a concentrated load at the corresponding point of the line. The voltage distribution along the line is simulated when the power of the solar power plant and the place of its connection change. Analytical relations are obtained for the calculation of the solar power plants power limit values to ensure the admissibility of the mode parameters according to the voltage level when varying the solar power plant connection point. A method is proposed to maintain the allowable minimum voltage levels at the terminals of consumers in short-term congested sections of the network.

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“…Authors [8,9] consider the issues of quality of power supply, but only combined with the dispersed sources of electricity. The proposed method and algorithms created prerequisites for software realization to evaluate reliability of local electric power networks only.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Performance efficiency analysis of electric power supply systems

Natalia

Dobrovol’s’ka

Sobchuk

et al. 2017

EEJET

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Розглянута з одного боку змінна систе-ма електропостачання, а з другого -неста-більна система електроспоживання. В рів-новагу системи можуть привести лише процеси, що в них протікають під дією взає-мозв'язаних зовнішніх і внутрішніх чинників. Використані мережі Петрі та теорія графів. Встановлено, що на початку формуються основні чинники, які визначають ефектив-ність електропостачальних систем, далі за допомогою орграфу будується модель проце-сів та виконується оптимізація. Отримані результати оптимізації важливі при проек-туванні та експлуатації електроенергетич-них мереж, сприяють зменшенню енергетич-них втрат Ключові слова: електроенергетичні мере-жі, електропостачальні системи, ефек-тивність, електроспоживання, електропо-стачання, чинники енергетичного процесу, моделювання, орграф Рассмотрена с одной стороны перемен-ная система электроснабжения, а с другой -нестабильная система электроснабжения. В равновесие системы могут привести лишь процессы, в них протекающие под действием взаимосвязанных внешних и внутренних фак-торов. Использованы сети Петри и теория графов. Установлено, что вначале формиру-ются основные факторы, которые опреде-ляют эффективность систем электроснаб-жения, далее с помощью орграфа строится модель процессов и выполняется оптимиза-ция. Полученные результаты оптимизации важны при проектировании и эксплуатации электроэнергетических сетей, способству-ют уменьшению энергетических потерь Ключевые слова: электроэнергетические сети, эффективность, электропотребление, электроснабжение, факторы энергетиче-ского процесса, моделирование, орграф UDC 621.316.11

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Method for Determination of Optimal Installed Capacity of Renewable Sources of Energy by the Criterion of Minimum Losses of Active Power in Distribution System

Cited by 7 publications

References 6 publications

Analysis Sensitivity Digital Twin Model of Energy Community PV system

Analysis Sensitivity Digital Twin Model of Energy Community PV system

Ensuring Permissible Voltage Levels in Low-Voltage Networks in the Design of Solar Power Plants for Private Households

Performance efficiency analysis of electric power supply systems

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