OPTIMUM LOCATION OF DSTACOMS VIA GREY WOLF OPTIMIZER IN A NIGERIAN 330 KV-BUS TRANSMISSION NEWORK

Abstract

Optimal location of static synchronous compensator (STATCOM) is critical to ensure
power loss minimization while meeting the real and reactive power demands in a
transmission network. This paper proposes a solution to this non-convex, discrete
problem by using the grey wolf optimizer (GWO) as a new metaheuristic algorithm. This
algorithm is applied to a 330 kV transmission system to minimize the power loss. The
results show that there is a considerable reduction in the power loss and an enhancement
of the voltage profile at the buses across the network by reducing the voltage deviation
from 1.5283pu to 0.5139pu, representing 66.37% improvement. The system is modelled
and simulated in Matlab/Simulation environment. Further comparisons show that the
proposed method outperforms all other metaheuristic methods, and matches the best
results by other methods.