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Wyszukujesz frazę "power quality energy" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Selected aspects of wind and photovoltaic power plant operation and their cooperation
Autorzy:
Lange, Andrzej
Pasko, Marian
Grabowski, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/2086878.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
harmonic distortion
power quality
renewable energy sources
zniekształcenia harmoniczne
jakość energii
odnawialne źródła energii
Opis:
The connection of renewable energy sources with significant nominal power (in the order of MW) to the medium-voltage distribution grid affects the operating conditions of that grid. Due to the increasing number of installed renewable energy sources and the limited transmission capacity of medium-voltage networks, the cooperation of these energy sources is becoming increasingly important. This article presents the results of a six-year study on a 2 MW wind power plant and a 1 MW photovoltaic power plant in the province of Warmia and Mazury, which are located a few kilometers away from each other. In this study, active energy, currents, voltages as well as active, reactive, and apparent power and higher harmonics of currents and voltages were measured. The obtained results show the parameters determining the power quality at different load levels. Long-term analysis of the operation of these power plants in terms of the generated electricity andactive power transmitted to the power grid facilitated estimating the repeatability of active energy production and the active power generated in individual months of the year and times of day by a wind power plant and a photovoltaic power plant. It also allowed us to assess the options of cooperation between these energy sources. It is important, not only from a technical but also from an economic point of view, to determine the nominal power of individual power plants connected to the same connection point. Therefore, the cooperation of two such power plants with the same nominal power of 2 MW was analyzed and the economic losses caused by a reduction in electricity production resulting from connection capacity were estimated.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 6; e139793, 1--16
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimum tasks and solutions for energy transmission from the source to the receiver
Autorzy:
Siwczyński, M.
Hawron, K.
Powiązania:
https://bibliotekanauki.pl/articles/201042.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy sources
minimum principle
power quality
optimum task
źródła energii
zadanie optymalizacyjne
jakość mocy
Opis:
The article presents the minimum optimization tasks that streamline the operating conditions of real linear power sources. Square functions, depending on source current and source power losses within the common power balance condition, have been proposed as quality criteria. These problems have been solved using the exact and simplified approximate methods.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 5; 655-663
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grid synchronization and symmetrical components extraction with PLL algorithm for grid connected power electronic converters - a review
Autorzy:
Bobrowska-Rafał, M.
Rafał, K.
Jasiński, M.
Kaźmierkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/200073.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
phase locked loop PLL
symmetrical component extraction
grid synchronization
grid-connected converter
smart grid
renewable energy sources (RES)
voltage dip
higher harmonics
power quality
Opis:
In this paper, a review of Phase Locked Loop (PLL) algorithms and symmetrical component extraction methods intended for grid-connected power electronic converters are presented. Proposed classification is based on voltage representation in three coordinates: natural (abc), stationary (alfa beta) and rotating coordinates (dq). The three selected algorithms are described in details: Dual Second Order Generalized Integrator (DSOGI-PLL), Dual Virtual Flux – both in stationary coordinates. The third one, in rotating dq coordinates, is Dual Synchronous Reference Frame PLL (DSRF-PLL). A comparison of PLL algorithms is presented. Also, selected experimental results are given to verify practical application of discussed algorithms.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2011, 59, 4; 485-497
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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