Method for controlling active power distribution in power transm

Details Method for controlling active power distribution in power transm Method for controlling active power distribution in power transm

1974-05-02

1976-02-24

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

323108, G05F 166

Patent

active

039406873

ABSTRACT:
Automatic control apparatus and a method for controlling the active power flow distribution in power transmission lines and a controller for effecting same. The control of active power flow in a power transmission line is effected by the selection of either a proportional-plus-integral or integral control is carried out by comparing the sum of the nearest maximum extrapolated difference between the preset and actual values of active power flow and its preset value with the permissible value of active power flow. If the sum is greater than the permissible value of active power flow, a proportional-plus-integral control is effected, whereas an integral control is carried out if the sum is smaller than the permissible value.
The controller effecting the above method is provided with a logical unit to ensure the selection of either proportional-plus-integral or integral mode of control, a transducer for active power flow, a setter for the preset power flow, a setter for the permissible value of active power flow, which means shape the input signals of said logical unit. The output signal of the logical unit ensures the connection of an amplifier for effecting the control in the proportional-plus-integral mode.

REFERENCES:
patent: 3683262 (1972-08-01), Neuffer et al.

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