Eng. Adrian-Alexandru Moldovan, PhD student
Rezumat
SAG-ul de tensiune este definit ca o reducere brusca a tensiunii de alimentare la valori cuprinse intre 90% si
10% din tensiunea nominala, urmata de o revenire dupa un timp scurt. O durata tipica a SAG-urilor de tensiune, conform
unor standard, este de la 10 (ms) la 1 (min). SAG –urile de scurta durata nu provoaca pagube insemnate, dar daca durata
SAG-ului depaseste doua sau mai multe cicluri, echipamentele sensibile pot fi grav deteriorate. Metoda de diminuare a
SAG-urilor de tensiune a analizata în lucrare face uz de un DSTATCOM si un algoritm de control original, propus de autor.
Cuvinte cheie: caderi de tensiuneDSTATCOMS
Abstract
Voltage sag is defined as a sudden reduction of supply voltage down 90% to 10% of nominal voltage, followed by a
recovery after a short process time. A typical duration of voltage sags, according to some standards is 10 (msec) to 1 (min).
Short lived power sags may not cause much harm, but if the sag exceeds two or more cycles, than the sensitive
equipments can be seriously damaged. The sag mitigation method analyzed in this paper makes use of a distribution static
compensator and an original control algorithm proposed by the author.
Keywords: voltage sags mittigationDSTATCOMS
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