Transient Stability Analysis of a Transmission Network Using Eigenvalue Principles with Automated VAR Compensation: A Case Study of the Nigerian Eastern Grid

Power systems may encounter disturbances during operation as a result of switching various components, etc. Such perturbations include transformer tap-changing action, load variations, and line outages due to types faults which an earth fault is the most common. Stability analysis transmission system necessary for us determine stability state so that appropriate control measures can be implemented guarantee stability. This article presents use eigenvalue obtained from system-linearized eigenvectors analyze system. The choice principle based on strength accuracy method actual providing adequate data easy solution problem. node admittance parameters computed applied eigenvalue–eigenvector model state. used input system, utilized static volt-ampere reactive (VAR) compensators (SVC) automatically stabilize non-stable buses in network. 6 × nodal matrix formed fed developed via MATLAB order compute right left diagonal or network under steady-state contingency condition. After this, determined, actions by SVC are security. was tested bus Eastern Grid Nigerian Transmission Network validated using 41 same country. compensated showed considerable efficiency improving transient networks terms ease operation, seamless integration into existing efficient utilization SVS compensate power imbalances. results step response graph shows performance regained less than 0.5 s, significant improvement over uncompensated model.