Title :
Resonant snubbers with auxiliary switches
Author :
McMurray, William
Abstract :
A resonant snubber is described for voltage-source inverters, current-source inverters, and self-commutated frequency changers. The main self-turnoff devices have shunt capacitors directly across them. A temporary parallel path through a small ordinary thyristor and inductance takes over high-stress turn-on duty from the main device in a manner that leaves no energy trapped after switching
Keywords :
commutation; frequency convertors; invertors; overvoltage protection; switches; auxiliary switches; current-source inverters; inductance; resonant snubber; self-commutated frequency changers; self-turnoff devices; shunt capacitors; thyristor; voltage-source inverters; Capacitors; Circuits; Inductance; Inverters; Power transistors; Resonance; Snubbers; Thyristors; Turning; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
