Regenerative two-quadrant converter and motor drive...

Details Regenerative two-quadrant converter and motor drive... Regenerative two-quadrant converter and motor drive...

H - Electricity

02

M

318/111

H02M 1/06 (2006.01) H02M 5/45 (2006.01) H02M 7/162 (2006.01) H02M 7/757 (2006.01) H02P 3/20 (2006.01)

Patent

CA 1302484

13 54, 170 ABSTRACT OF THE DISCLOSURE In a voltage-source inverter system, wherein the commutation between static switches in the AC/DC converter in the regenerative mode is forced by a GTO or transistor device in series with an auxiliary thyristor in order to bring the current path to zero, a reactor of large induc- tance is inserted for improved operation in the forward and regenerative mode, but an additional thyristor is converted in unparallel to such reactor in order to neutralize the inductance when bringing the current to zero in the regen- erative mode, and such additional thyristor is turned OFF by natural commutation. when the next converter static switch is coming ON.

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