Converting apparatus and commutation control method therefor

Details Converting apparatus and commutation control method therefor Converting apparatus and commutation control method therefor

1987-04-21

1988-07-19

Salce, Patrick R.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363138, H02M 7145

Patent

active

047589396

ABSTRACT:
An improvement in a commutation control method or a control circuit for a converter comprising a plurality of converter units connected in cascade, which is provided with a circuit which maintains a phase control angle of each converter unit in an about constant angular difference within a range of a specified converter output, thereby enabling precision output control, reduction of the ripple in a delivered current to a load, and an improvement in power factor of an input fundamental wave in comparison with the symmetric control.

REFERENCES:
"Thyristor Phase-Controlled Converters and Cycloconverters, Operation, Control, and Performance", pp. 385-388, B. R. Pelly, 1971, Wiley-Interscience.

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