Method and apparatus for controlling current or power between in

Details Method and apparatus for controlling current or power between in Method and apparatus for controlling current or power between in

1980-01-03

1982-03-16

Hix, L. T.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Circulating- or inter-current control or prevention

307 20, 307 24, 364493, H02J 318

Patent

active

043203060

ABSTRACT:
A method and apparatus for controlling a current and/or power between interconnected power stations.
A deviation from a base load in an active current or power flowing out of a power station and a deviation from a normal value in the terminal voltage of the power station are measured. A linear function of the ratio of the voltage deviation to the active current deviation is obtained, and a product of the active-current to voltage deviation function and an active current flowing out of the power station is calculated, and thus a reactive current is defined by the product.
An internal generation current of the power station is controlled so as to coincide substantially with the sum of the current composed of the active current and the reactive current defined above, and other currents of the power station including the internal load current.

REFERENCES:
patent: 3117221 (1964-01-01), Kirchmayer
Dopazo et al.; State Calculation of Power Systems from Line Flow Measurements; from IEEE Transactions on Power Apparatus and Systems; vol. Pas. 89, No. 7; Sep./Oct. 1970.
"Standard Handbook for Electrical Engineers," Fink et al., 11th edition, 16-2-16-47 and 14-33-14-37 and 14-16-14-33.

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