Nadzor njihanja snage hidroelektrane u stvarnom vremenu podržan sinkroniziranim mjerenjima
| Autor: | Srdjan Skok, Niksa Vrkic, Vedran Kirincic |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Prony method
Engineering business.industry Control theory 020209 energy 0202 electrical engineering electronic engineering information engineering General Engineering hydro power plant power swing Prony analysis synchronized measurements system stability System stability 02 engineering and technology business hidroelektrana njihanje snage Prony analiza sinkronizirana mjerenja stabilnost sustava |
| Zdroj: | Tehnički vjesnik Volume 23 Issue 5 |
| ISSN: | 1330-3651 1848-6339 |
| DOI: | 10.17559/tv-20150716164941 |
| Popis: | Dinamički poremećaji u elektroenergetskom sustavu odražavaju se na rad generatora i uzrokuju niz poremećaja od kojih je značajno njihanje snage, koje može dovesti do prorada zaštita, ispada generatora iz pogona i odvajanja od mreže. Dosadašnja primjena sinkroniziranih mjerenja u području njihanja snage uglavnom se odnosila na prijenosni sustav te gubitak sinkronizma na dalekovodu. U ovom radu prikazano je izvorno rješenje za nadzor njihanja snage u hidroelektrani u stvarnom vremenu zasnovano na sinkroniziranim mjerenjima i Prony analizi, koja je osnova za ublažavanje poremećaja. Prony analiza je korištena za analizu frekvencije, prigušenja ili raspirivanja i amplitudu njihanja snage na osnovu sinkroniziranih mjerenih vrijednosti fazora napona. Uvođenjem sinkroniziranih mjerenja u nadzor njihanja snage omogućava se detekcija i nadzor njihanja snage u stvarnom vremenu, što klasičnim metodama nije bilo moguće. Zaključno, u radu su prikazani rezultati implementiranog nadzora njihanja snage u stvarnom vremenu na primjeru stvarne hidroelektrane. Dynamic disturbances in the electric power system exert influence on the operation of generators and cause several other disturbances, such as a power swing, resulting in the activation of protections, the stalling of generators and their disconnection from the grid. The application of synchronized measurements in the field of power swing has mainly been focused on a transmission power system and on the loss of synchronism on power lines. In this paper the original solution for real time power swing monitoring in a hydro power plant based on synchronized phasor measurements and Prony analysis is proposed, which is a basis for mitigation of disturbances. Prony analysis is used for the analysis of frequency, decreasing or increasing amplitude of oscillations based on the synchronized measurements of voltage phasors. Using the synchronized phasors measurements for power swing monitoring allows detection and monitoring of power swings in real time, which was not possible with classical methods. To conclude with, the results of the implemented real time monitoring system in the real hydro power plant are given in the paper. |
| Databáze: | OpenAIRE |
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