Title :
A near-zero current-switching series resonant inverter using GTOs
Author :
Jain, Praveen ; Dawson, F.P. ; Dewan, Shashi B.
Author_Institution :
Bell-Northern Res., Ottawa, Ont., Canada
fDate :
8/1/1992 12:00:00 AM
Abstract :
A novel implementation of fast gate-turn-off thyristors (GTOs) for a series resonant power converter operating above 10 kHz and an output power rating of 10 kW or greater is presented. A zero current switching gating strategy that eliminates the need for large negative gate drive circuits is presented. This permits the operation of the converter at a near-unity load power factor independent of the operating frequency. Consequently, for a given output power, the installed kVA capacity of the converter is minimized, and the system simplicity is maintained. A simplified analysis and component ratings for the GTO-based converter are presented. All the results are verified experimentally
Keywords :
invertors; power convertors; switching circuits; thyristor applications; 10 kW; GTOs; ZCS; component ratings; inverter; power factor; series resonant power converter; thyristor applications; zero current switching; Frequency conversion; Inductance; Polarization; Power generation; RLC circuits; Reactive power; Resonance; Resonant inverters; Switching frequency; Thyristors;
Journal_Title :
Industrial Electronics, IEEE Transactions on