Enhancement of Voltage Stability using Generalized Unified Power Flow Controller

Alhassan F., Abubakar A. S., Yusuf J., Yusuf S., Idris K.

Abstract


Increase in the demand of electrical power supply leads to heavy loading of transmission lines. As a result, there is insufficient reactive power availability which leads to voltage instability. To overcome the aforementioned problem leading to voltage instability and also to reduce the system loses, the use of FACTS devices arises. This paper is aimed at improvingvoltage stability on Nigeria 28-bus, 330kV transmission networks using Generalized Unified Power Flow Controller (GUPFC). A multi-objective optimization approach based on minimization of active power loss and voltage deviation to determine the optimal location and size of GUPFC using Particle Swarm Optimization (PSO) was developed. The simulation results demonstrated significant improvement of the PSO model with a 30.99% reduction in total active power loss and 2.49% improvement in the overall voltage profile.


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References


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