THE TECHNIQUE OF STATIC SWITCHING WITH IGBT TRANSISTORS ON THE DC CIRCUIT BREAKERS

Autor/autori: Eng. Elena STEFAN, PhD Stud., Prof. Eng. Horia BALAN PhD, Eng. Teodor VAIDA, PhD Stud

Rezumat: Deconectarea intreruptoarelor de tensiune continua este o problema tehnica dificila, datorita faptului ca aceste tipuri de intreruptoare trebuie sa intrerupa valoarea nominala a curentului, spre deosebire de intreruptoarele de curent alternativ, care pot fi deconectate la trecerea prin zero a curentului. Corelat cu preocuparile actuale in domeniu, lucrarea propune o variant care utilizeaza un contactor static cu tranzistoare IGBT. Se prezinta rezultatele simularilor in Mediul de Putere Blockset MATLAB, pentru un model experimental.

Cuvinte cheie: intreruptoare de tensiune continua, contactor static, blockset Matlab

Abstract: DC circuit breakers switch-off is a difficult technical matter mainly for the fact that this kind of breakers must interrupt current rated value, as opposed to AC. breakers that can be interrupted at current zero passage. Correlative to existent pursuits in this field, this paper propose a new approach using solid state circuit breaker based on IGBT transistors. Results for an experimental model simulated in Power Blockset Matlab are presented.

Keywords: DC circuit breakers, static switching, blokset Matlab

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