Inter-area oscillations are, by far, the most detrimental oscillation category to the integrity
of synchronously interconnected power systems. Inter-area oscillations are characterized
by the inherent weak damping. The inherent poor damping associated with
the inter-area oscillations leaves open wide probabilities for irrevocable widespread
blackouts with the consequent eventual devastating outcomes measured in terms of
the huge economic casualties and the possible human fatalities. The main purpose of
this work is to mitigate inter-area power oscillations. This article explores the effectiveness
of dual thyristor controlled braking resistor units with Interval Type-2 fuzzy-based
centralized architecture for neutralizing the jeopardy of inter-area power oscillations
in Kundur’s two-area test system using MATLAB™/Simulink environment. The effectiveness
of the proposed scheme is examined by considering four case studies with
different degrees of severity. The simulation results show that the proposed scheme
is simple yet effective in treating the inter-area oscillations appropriately under the
considered case studies. |
