Method and apparatus for shutting down an inverter

Details Method and apparatus for shutting down an inverter Method and apparatus for shutting down an inverter

1977-09-13

1979-04-24

Shoop, William M.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 96, H02M 118

Patent

active

041515862

ABSTRACT:
Upon a stop command, the current conducting state of the main valves and the recovery valves of an inverter with bridged valves is monitored. A change of the firing pulses for the main valves is blocked if the valves connected to one d-c bus of the inverter conduct current simultaneously. After a predetermined time has passed or upon the arrival of a monitoring signal that the current in the inverter is extinguished, the transmission of the firing pulses to the controlled main valves of the inverter is then blocked.

REFERENCES:
patent: 3315144 (1967-04-01), Poss
patent: 3378751 (1968-04-01), Walker
patent: 3715649 (1973-02-01), Ravas
patent: 3760258 (1973-09-01), Percorini et al.
patent: 3986098 (1976-10-01), Tamii et al.

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