Method of controlling switching of a multiphase inductor-convert

Details Method of controlling switching of a multiphase inductor-convert Method of controlling switching of a multiphase inductor-convert

1979-02-28

1981-01-13

Shoop, William M.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 14, H02J 1500

Patent

active

042452872

ABSTRACT:
In an inductor-convertor circuit for transferring electrical energy between a storage coil and a load coil using a storage thyristor bridge, a load thyristor bridge, and a set of commutating capacitors, operation is improved by a method of changing the rate of delivery of energy in a given direction. The change in rate corresponds to a predetermined change in phase angle between the load bridge and the storage bridge and comprises changing the phase of the bridge by two steps, each equal to half the predetermined change and occurring 180.degree. apart. The method assures commutation and minimizes imbalances that lead otherwise to overvoltages.

REFERENCES:
patent: 4079305 (1978-03-01), Peterson et al.
patent: 4122512 (1978-10-01), Peterson et al.

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