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    Wyświetlanie 1-5 z 5
    Tytuł:
    Energy storage systems: power grid and energy market use cases
    Autorzy:
    Komarnicki, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/141507.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    storage technologies
    storage system sizing
    storage system operation
    storage system management
    storage system use case scenarios
    storage system integration
    Opis:
    Current power grid and market development, characterized by large growth of distributed energy sources in recent years, especially in Europa, are according energy storage systems an increasingly larger field of implementation. Existing storage technologies, e.g. pumped-storage power plants, have to be upgraded and extended by new but not yet commercially viable technologies (e.g. batteries or adiabatic compressed air energy storage) that meet expected demands. Optimal sizing of storage systems and technically and economically optimal operating strategies are the major challenges to the integration of such systems in the future smart grid. This paper surveys firstly the literature on the latest niche applications. Then, potential new use case and operating scenarios for energy storage systems in smart grids, which have been field tested, are presented and discussed and subsequently assessed technically and economically.
    Źródło:
    Archives of Electrical Engineering; 2016, 65, 3; 495-511
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Short-term optimal energy management in stand-alone microgrid with battery energy storage
    Autorzy:
    Paliwal, N. K.
    Singh, A. K.
    Singh, N. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/140998.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    artificial bee colony
    battery energy storage
    clean energy sources
    optimal energy management
    stand-alone microgrid
    Opis:
    The optimal energy management (OEM) in a stand-alone microgrid (SMG) is a challenging job because of uncertain and intermittent behavior of clean energy sources (CESs) such as a photovoltaic (PV), wind turbine (WT). This paper presents the effective role of battery energy storage (BES) in optimal scheduling of generation sources to fulfill the load demand in an SMG under the intermittency of theWT and PV power. The OEM is performed by minimizing the operational cost of the SMG for the chosen moderate weather profile using an artificial bee colony algorithm (ABC) in four different cases, i.e. without the BES and with the BES having a various level of initial capacity. The results show the efficient role of the BES in keeping the reliability of the SMG with the reduction in carbon-emissions and uncertainty of the CES power. Also, prove that the ABC provides better cost values compared to particle swarm optimization (PSO) and a genetic algorithm (GA). Further, the robustness of system reliability using the BES is tested for the mean data of the considered weather profile.
    Źródło:
    Archives of Electrical Engineering; 2018, 67, 3; 499--513
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Smart control of energy storage system in residential photovoltaic systems for economic and technical efficiency
    Autorzy:
    Kaczorowska, Dominika
    Rezmer, Jacek
    Janik, Przemysław
    Sikorski, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2202548.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    economic efficiency
    energy storage system ESS
    microgrid management
    optimal power flow
    OPF
    particle swarm optimisation PSO
    Opis:
    In recent years, due to the increasing number of renewable energy sources, which are characterised by the stochastic nature of the generated power, interest in energy storage has increased. Commercial installations use simple deterministic methods with low economic efficiency. Hence, there is a need for intelligent algorithms that combine technical and economic aspects. Methods based on computational intelligence (CI) could be a solution. The paper presents an algorithm for optimising power flow in microgrids by using computational intelligence methods. This approach ensures technical and economic efficiency by combining multiple aspects in a single objective function with minimal numerical complexity. It is scalable to any industrial or residential microgrid system. The method uses load and generation forecasts at any time horizon and resolution and the actual specifications of the energy storage systems, ensuring that technological constraints are maintained. The paper presents selected calculation results for a typical residential microgrid supplied with a photovoltaic system. The results of the proposed algorithm are compared with the outcomes provided by a deterministic management system. The computational intelligence method allows the objective function to be adjusted to find the optimal balance of economic and technical effects. Initially, the authors tested the invented algorithm for technical effects, minimising the power exchanged with the distribution system. The application of the algorithm resulted in financial losses, €12.78 for the deterministic algorithm and €8.68 for the algorithm using computational intelligence. Thus, in the next step, a control favouring economic goals was checked using the CI algorithm. The case where charging the storage system from the grid was disabled resulted in a financial benefit of €10.02, whereas when the storage system was allowed to charge from the grid, €437.69. Despite the financial benefits, the application of the algorithm resulted in up to 1560 discharge cycles. Thus, a new unconventional case was considered in which technical and economic objectives were combined, leading to an optimum benefit of €255.17 with 560 discharge cycles per year. Further research of the algorithm will focus on the development of a fitness function coupled to the power system model.
    Źródło:
    Archives of Electrical Engineering; 2023, 72, 1; 81--102
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Performance analysis and PCM selection for adsorption chiller aided by energy storage supplied from the district heating system
    Autorzy:
    Karwacki, Jarosław
    Kwidziński, Roman
    Leputa, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/2204066.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    thermal sorption cooling
    phase change material
    thermal energy storage
    district heating
    adsorption
    energy management
    mathematical modelling
    load shifting
    efficiency
    Opis:
    The paper presents a theoretical analysis of thermal energy storage filled with phase change material (PCM) that is aimed at optimization of an adsorption chiller performance in an air-conditioning system. The equations describing a lumped parameter model were used to analyze internal heat transfer in the cooling installation. Those equations result from the energy balances of the chiller, PCM thermal storage unit and heat load. The influence of the control of the heat transfer fluid flow rate and heat capacity of the system components on the whole system operation was investigated. The model was used to validate the selection of Rubitherm RT62HC as a PCM for thermal storage. It also allowed us to assess the temperature levels that are likely to appear during the operation of the system before it will be constructed.
    Źródło:
    Archives of Thermodynamics; 2022, 43, 4; 135--169
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of small building plots in areas with high density of building
    Analiza niewielkich działek budowlanych na obszarach o dużej gęstości zabudowy
    Autorzy:
    Kaczorek, K. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/231422.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    działka budowlana
    wykorzystanie
    zabudowa gęsta
    optymalizacja
    zarządzanie
    dostawa
    składowisko
    plot
    utilization
    high density of building
    optimization
    management
    supply
    storage area
    Opis:
    Author explains a necessity of supply optimization to construction sites with small storage areas. This paper takes account of conditions existing in Poland. From among all factors discussed by the author, first of all, we should point at construction works on plots located in densely built-up areas, obtained by demolition of existing buildings, as well as a necessity of plots utilization after demolished buildings that technical conditions do not allow for further exploitation.
    Autor, w swojej pracy naukowo-badawczej, stara się opracować procedurę, która usprawniałaby zarządzanie stosunkowo niewielkim placem budowy. Jest to zagadnienie o tyle skomplikowane, że w związku z małą działką, kierujący budową dysponuje niewielką powierzchnią składowania lub czasami w ogóle takowej nie posiada do swojej dyspozycji. W tym artykule autor analizuje czynniki powodujące powstawanie wspomnianych wyżej placów budowy w dużych ośrodkach miejskich na terenie Polski. W oparciu o pozyskane dane statystyczne oraz historyczne autor formułuje wnioski, które potwierdzają nasilanie się zjawiska, jakim jest praca na stosunkowo niewielkich placach budowy. Dzięki potwierdzeniu faktu zwiększania liczby niewielkich działek budowlanych położonych w stosunkowo gęstej zabudowie, autor otrzymuje informację zwrotną potwierdzającą celowość jego pracy nad procedurą usprawniającą zarządzanie niewielkim placem budowy.
    Źródło:
    Archives of Civil Engineering; 2016, 62, 2; 45-57
    1230-2945
    Pojawia się w:
    Archives of Civil Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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