TITLE:
Coordination of Regulation Devices for Damping Power Oscillations in a Dynamic Disturbance Context: A Fuzzy Logic-Based Approach Applied to the Electrical Grid of the Republic of Congo
AUTHORS:
Mavie Grace Mimiesse, Davy Rostand Souamy Loembe, Smaël Magloire Elombo Motoula, Désiré Lilongo-Boyenga
KEYWORDS:
Fuzzy Logic, STATCOM, PSS, Lyapunov, Republic of Congo
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.12 No.1,
January
31,
2024
ABSTRACT: This article presents a fuzzy logic-based approach to coordinate the
control devices of the power system, such as Power System Stabilizers (PSS) and
Static Synchronous Compensators (STATCOM),
to damp power oscillations caused by dynamic disturbances. At first, we
used the Lyapunov method to study the dynamic stability of the power grid in
the Republic of Congo. This method allowed us to analyze the eigenvalues of the state variable
matrix and highlight the eigenvalues in the complex plane. Secondly, we
proposed a fuzzy logic-based controller to account for uncertainties existing near the thresholds. The inputs to this controller are the
generator speed and generator rotor angle.
We demonstrated the effectiveness and feasibility of this fuzzy control by applying it to the
power grid of the Republic of Congo, with three power stabilizers and two STATCOMs.