Thyristor control method for thyristor AC-DC converter

Electric power conversion systems – Current conversion – With condition responsive means to control the output...

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Details

363129, 318227, 318345G, H02M 7155

Patent

active

041225171

ABSTRACT:
In an AC-DC converter for converting an AC power by a six-phase, half-wave or three-phase, full-wave back-to-back or anti-parallel connection thyristor bridge to a DC power for input to a load, while the current to the load is small, the converter is actuated as a converter of a three-phase, half-wave back-to-back connection bridge, thereby to enable an alternate supply of negative and positive currents to the load. Letting the output by the AC-DC converting operation of the three-phase, half-wave back-to-back connection bridge and the output by the other converting operation be identified as main and auxiliary outputs, respectively, as the load current increases, the auxiliary output is also supplied to the load.

REFERENCES:
patent: 3571689 (1971-03-01), Wise

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