Temat: zniekształcenia harmoniczne - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Harmonic distortion analysis in armature currents of synchronous machine during co-operation with the power system
Autorzy:: Ludwinek, K.
Siedlarz, A.
Powiązania:: https://bibliotekanauki.pl/articles/1373476.pdf
Data publikacji:: 2009
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:: maszyna elektryczna
maszyna synchroniczna
zniekształcenia harmoniczne
Opis:: In the article an analysis of harmonic distortion in armature currents in synchronous machine during co-operation with electric power system is presented. The analysis is carried out thanks to the computer applications designed in LabVIEW - graphical programming environment. The applications allow to carry out the analysis of the influence of voltage unbalance and harmonic distortion on the power quality and to display on screen the non-sine waveforms of the voltages and currents taken by electrical equipment. Moreover, the programs display the RMS values of active, reactive and apparent power as well as power of distortion and coefficients: THD, PHD, IHD, power factor and voltage unbalance. In addition, the applications allow to record the signals from A/C measuring devices or oscilloscopes and save them to file for further analysis.
Źródło:: Maszyny Elektryczne: zeszyty problemowe; 2009, 84; 217-223
0239-3646
2084-5618
Pojawia się w:: Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

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

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