Drd.Eng.Valentin ZAHARESCU, Assoc.prof.Eng. Elena ANGHEL, Drd.Eng. Constantina GROFU, Drd.Eng. Iulian BARBOIANU, PhD prof. Basarab GUZUN
Rezumat
In domeniul centralelor hidroelectrice CHE utilizarea actionarilor variabile din reteaua serviciilor interne RSI,
poate constitui o sursa viabila de economisire energetica. Astfel, analiza atenta a structurii consumatorilor din RSI duce la concluzia justa privind regimul adecvat de antrenare a diverselor mecanisme mecano-energetice la viteze mai redus atunci cand CHE nu este lestata la parametrii nominali. In acest sens, convertoarele de frecventa CF pot fi de utilitate certa
in actionarile de durata la viteza variabila pentru consumatorii oprerand de durata , precum pompele apa de racire; pentru consumatorii de scurta durata precum pompele de ulei sau apa-epuisment sunt mai potrivite actionarile prin soft startere
SSt. In acest fel, utilitatea investitiei in dispozitivele electronice de putere este evidenta si poate fi amortizata convenabil.
Cuvinte cheie: consumatori de servicii internecentrale hidroelectrice CHEconvertoare de frecventa CFsoftstartere SSt
Abstract
In the field of hydro power plants HPP the use of variable drivings could be significant in energy savings. In this
respect, one carefully conducted analysis will show the adequate regime of slower speed devoted to the ancillarry
consumers when the HPP is not loaded at its rated parameters. In this respect, the frequency converters FC could be
helpful for the ancillary operating during long range regimes, as cooling water pumping; for the ancillary consumers driven only for short period of time like pressurized oil pumps of water sewage drain, could be sufficient drivings which are using
soft-starters SSt;. In this way, the new investment at one HPP could be useful, being recuperated at acceptable rate.
Keywords: ancillary consumershydro power plants HPPfrequency converters FCsoftstarters SSt.
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