Fault protection for GTO voltage-source inverters

Details Fault protection for GTO voltage-source inverters Fault protection for GTO voltage-source inverters

1986-03-17

1987-08-11

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363137, 361 57, 361100, H02H 7122

Patent

active

046866183

ABSTRACT:
A crowbar circuit is provided in an inverter for diverting overcurrents from the inverter switches. The crowbar circuit includes a crowbar switch and a crowbar winding which is magnetically coupled with the inverter snubber reactors. The size and the coupling of the crowbar winding are chosen so as to reduce or make negative the di/dt of the snubber reactors when the crowbar switch is turned on.

REFERENCES:
patent: 3538419 (1970-11-01), Seki et al.
patent: 4005350 (1977-01-01), Brenneisen
patent: 4156274 (1979-05-01), Fukui et al.
T. Asaeda et al., "DC-to-AC Power Converter for Fuel Cell System", Conference Record of Fifth International Telecommunications Energy Conference, Oct., 1983, pp. 84-91.

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