Control system for DC power transmission

Details Control system for DC power transmission Control system for DC power transmission

1983-02-22

1985-05-07

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 51, H02J 336

Patent

active

045161984

ABSTRACT:
In a DC power transmission system the rectifier and inverter stations are controlled by transmitting a signal representative of the voltage of the AC network in the inverter station, to the rectifier station and/or measuring the voltage in the AC network of the rectifier station and comparing it with the DC voltage on the transmission line. When the measured AC voltage exceeds the measured DC voltage, this indicates that the AC voltage of the inverter station has been reduced to such an extent that the rectifier station may receive a signal to this effect at the same time as the voltage reduction has been measured in the inverter station.

REFERENCES:
patent: 3275838 (1966-09-01), Almstrom
patent: 3487286 (1969-12-01), Persson
patent: 4126892 (1978-11-01), Ekstrom et al.

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