Margin angle responsive method and apparatus for controlling rea

Details Margin angle responsive method and apparatus for controlling rea Margin angle responsive method and apparatus for controlling rea

1985-04-19

1986-07-15

Beha, Jr., William H.

Electric power conversion systems

Current conversion

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

323209, H02J 336

Patent

active

046009817

ABSTRACT:
A control method of the invention is formed with the steps of when a margin angle .gamma. reaches a given minimum margin angle .gamma.min during the operation of a rectifier and inverter, a shunt reactor is disconnected from, or a shunt capacitor is connected to, an AC line of the inverter, and when the margin angle .gamma. exceeds the minimum margin angle .gamma.min by a predetermined value, the shunt reactor is connected to, or the shunt capacitor is disconnected from, the AC line.

REFERENCES:
patent: 3424971 (1969-01-01), Stackegard
Nishimura et al., "Constant Power Factor Control System for HVDC Transmission," IEEE Trans. on Pwr. App. & Syst., vol. PAS-95, No. 6, pp. 1845-1853, Nov./Dec. 76.
International Conference on DC Power Transmission, Jun. 4-8, 1984, "Design and Control Strategies of HVDC Schemes for AC Voltage Control and Stabilization", BBC Brown Boveri & Co. Ltd.
Direct Current; Sep. 1956, p. 55.

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