PARTIAL RELATIVE GAIN ARRAY SELECTION OF UPFC SIGNALS FOR DAMPING INTER-AREA OSCILLATIONS

Publication Date : 15/06/2021

Author(s) :

Bala Boyi Bukata, Ibrahim Hassan, Nuraddeen Magaji.

Volume/Issue :

Volume 16

Issue 2

(06 - 2021)

Abstract :

Stabilising power system operations has been a critical phenomenon in maintaining synchronism among system’s generating units. With growing power system complicities, the use of traditional damping methods like the propor-tional-integral-derivative (PID), and the relative gain array (GRA) can no longer meet customers’ sensitive load proliferation. This paper utilises a modified partial relative gain array (PRGA) algorithm for sourcing the control signals in unified power factor controller (UPFC) to damp oscillating inter-area network. The 2-area 13-bus system is used to implement this technique, and it has proven to be more effective in determining the integral controllability with integrity (ICI) of uncertain modeling errors with increased sensitivity as compared to the traditional GRA technique.

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