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Patent Searching and Data


Title:
CONTROLLING METHOD OF POWER CONVERTER
Document Type and Number:
Japanese Patent JPS6046776
Kind Code:
A
Abstract:
PURPOSE:To simplify the construction of a power converter by providing a role of a snubber capacitor for a commutation capacitor, and discharging an electromagnetic energy stored in an inductance to a load side, thereby reducing the loss. CONSTITUTION:The first bridge circuit 6 supplied from the first AC power source 2 is composed of a thyristor at the positive side arm 8 and a self-extinguishing type thyristor at the negative side arm 9. The second bridge circuit 7 supplied from the second AC power source 3 is composed of a self-extinguishing type thyristor at the positive side arm 10, and a thyristor at the negative side arm 11. Commutation thyristors 15-20 are provided between the same phases of the first and second AC power sources 2, 3, and commutation capacitors 12-14 are provided between the connecting point of the thyristors 15- 10 and the connecting point of the first and second bridge circuits 6, 7. The capacitors 12-14 are operated also as snubber capacitors.

Inventors:
UCHINO HIROSHI
Application Number:
JP15551483A
Publication Date:
March 13, 1985
Filing Date:
August 25, 1983
Export Citation:
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Assignee:
TOSHIBA KK
International Classes:
H02M1/06; H02M7/12; H02M7/155; (IPC1-7): H02M1/06