Electricity: power supply or regulation systems – For reactive power control – Using impedance
Patent
1985-10-04
1987-08-11
Wong, Peter S.
Electricity: power supply or regulation systems
For reactive power control
Using impedance
323209, G05F 170, H02J 318
Patent
active
046864474
ABSTRACT:
A static var compensator connected to a line node in a power transmission system and having a capacitor and a first reactor for producing and absorbing reactive power, respectively, and a second reactor connected between the line node and the common node of the first reactor and the capacitor for providing, in combination with the capacitor and the first reactor, a maximum leading reactive capacity so as to effectively reduce the capacities of the elements and for compensating for changes in reactive power resulting from a current fluctuation in response to a load fluctuation. The second reactor increases the reactive power produced by the capacitor when the reactive power absorbed by the first reactor is low and decreases the reactive power produced by the capacitor when the reactive power absorbed by the first reactor is high.
REFERENCES:
patent: 3932808 (1976-01-01), Frank
patent: 4357570 (1982-11-01), Schmid et al.
"Static Var Compensators", Masao Yano, Mitsubishi Electric Advance Publication, Jun. 1979, pp. 5-8.
"Statis Var Compensators for Power-Transmission Lines", Masayoshi Takeda, Mitsubishi Electric Advance Publication, Jun. 1982, pp. 1-4.
Sashida Nobuo
Takeda Masatoshi
Jones Judson H.
Mitsubishi Denki & Kabushiki Kaisha
Wong Peter S.
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