Electric power conversion systems – Current conversion – Including an a.c.-d.c.-a.c. converter
Patent
1977-11-22
1980-05-27
Shoop, William M.
Electric power conversion systems
Current conversion
Including an a.c.-d.c.-a.c. converter
H02M 540
Patent
active
042053684
ABSTRACT:
A method for the transmission of DC current via a DC network between at least one rectifier station and several inverter stations wherein reference inputs are formed on the basis of a fixed predetermined current-voltage characteristic and a fixed predetermined voltage-current characteristic matched to the aforesaid current-voltage characteristic for the voltage controller of the rectifier of the rectifier station and for the current controller of each inverter station, respectively. The formed reference input for each current controller is released to that current controller when the maximum value of the formed reference input exceeds a value determined for the reference input corresponding to the power demand associated with the inverter station which includes that current controller. When the maximum value of the formed reference input is less than the latter determined value, such value is released as the reference input to the current controller.
REFERENCES:
patent: 3447063 (1969-05-01), Hammarlund
patent: 3470442 (1969-09-01), Ainsworth
patent: 3500057 (1970-03-01), Stackegard
patent: 3526780 (1970-09-01), Uhlmann et al.
patent: 4019115 (1975-04-01), Lips
Erche Manfred
Filberich Ludwig
Pove Dusan
Waldmann Hermann
Weibelzahl Manfred
Shoop William M.
Siemens Aktiengesellschaft
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