Apparatus for generating a symmetrical three-phase voltage syste

Details Apparatus for generating a symmetrical three-phase voltage syste Apparatus for generating a symmetrical three-phase voltage syste

1986-05-13

1988-01-12

Salce, Patrick R.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 98, H02P 1300

Patent

active

047195576

ABSTRACT:
A device which generates a symmetrical output voltage system at the output of a transformer with a neutral point which can carry current on the secondary side or a Y-point former, even if the load is asymmetrical, each primary terminal being fed from a pair of bridge arms of a pulsed inverter. The device further comprises a decoupling network in which the conductor voltages measured on the secondary side are converted into substitute actual values according to the structure of the transformer circuit, which actual values represent symmetrical output voltages or a likewise symmetrical system with a free Y-point. These substitute actual values are controlled to form a system of symmetrical reference values.

REFERENCES:
patent: 4214300 (1980-07-01), Barlow et al.
patent: 4259620 (1981-03-01), Oates et al.
patent: 4367522 (1983-01-01), Forstbauer et al.
patent: 4502105 (1985-02-01), Jessee
patent: 4502106 (1985-02-01), Glennon
patent: 4574340 (1986-03-01), Baker
patent: 4597037 (1986-06-01), Okado

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