Improving the Stability of An Interconnected Power System Using Genetic Eigenvalue Technique

Improving the power stability of an interconnected Nigerian 330KV 48 bus system was developed using Genetic Eigenvalue Technique to mitigate challenges proper placement stabilizer due its highly dynamic and nonlinear nature. In order eliminate load losses, equipment malfunctioning, other quality issues, unnecessary tripping cascaded failures in network, stabilizers are installed improve stability. The operational process data grid cable distance meter (CDM-75), Transmission line calculator (AWR version) were sampled at Company Nigeria Osogbo, Osun State Nigeria. technique used generate eigenvalues, damping ratios participation factors for PSS (Power System Stabilizers) effect transmission plant outage contingencies. PSSs placed Analysis performed better than based on conventional Arnoldi eigenvalue technique. simulation results base case voltage profile trajectories impact contingencies plotted MATLAB/SUMULINK environment. From output plots, percentage instability suppression time improvement over is 51.86%. Oscillation generator 1, 74%, that 3 79%, finally 5 76.98%. study genetic analysis suppressed oscillation faster compared it took Keywords: Power Stability- Eigenvalue, ArnoldiEigenvalue, PSS. DOI: 10.7176/JETP/11-1-03 Publication date: January 31 st 2021