Current-type GTO inverter using GTO in its surge voltage clampin

Details Current-type GTO inverter using GTO in its surge voltage clampin Current-type GTO inverter using GTO in its surge voltage clampin

1984-03-08

1986-04-01

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

363 58, 363137, H02M 545

Patent

active

045802050

ABSTRACT:
In a current type GTO inverter, commutation surge voltage is inevitably generated from an inductive load whenever each GTO is turned off. The commutation surge voltage thus generated is once stored in a capacitor through a diode surge voltage rectifier and then restored or regenerated to the DC source terminals of the GTO bridge-connected inverter through a pair of other GOTS turned on only when the capacitor voltage exceeds a predetermined value beyond the DC source voltage. After energy restoration, magnetic energy stored in a reactor is recharged in the same capacitor. The necessary elements are a capacitor, two GTOs, two diodes and a DC reactor, thus simplifying the circuit configuration and reducing the cost. Additionally, since no vibration circuits to turn off thyristors for restoring the energy charged in the capacitor to the GTO bridge-connected inverter are required, the circuit operation is stable at higher frequency range, in particular.

REFERENCES:
patent: 3887862 (1975-06-01), Hubner
patent: 4309751 (1982-01-01), Okado
patent: 4482854 (1984-11-01), Kawada et al.
Burgum et al., "A New Gate Turn-Off Switch (GTO) Used in a P.W.M. A.C. Motor Drive," Conference: Proceedings of the First Annual International MOTORCON '81 Conference, Chicago, Ill., U.S.A. (Jun. 10-13, 1981), pp. 483-491.

Affiliated with

Also associated with

Rating

Current-type GTO inverter using GTO in its surge voltage clampin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current-type GTO inverter using GTO in its surge voltage clampin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current-type GTO inverter using GTO in its surge voltage clampin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1087937