Impact of hybrid FACTS devices on the stability of the Kenyan power system

<p>Flexible alternating current transmission system (FACTS) devices are deployed for improving power system’s stability either singly or as a combination. This research investigates hybrid FACTS and studies their impact on voltage, small-signal transient simultaneously under various disturbances. The simulations were done using five devices-static var compensator (SVC), static synchronous (STATCOM), series compensators (SSSC), thyristor controlled (TCSC) unified flow controller (UPFC) in MATLAB’s analysis toolbox (PSAT). These grouped into ten pairs tested Kenya’s network specific contingencies: the loss of major generating machine and/or line. UPFC-STATCOM pair performed best all three aspects study. settling times 3 seconds 3.05 respectively voltage rotor angle improvement generator at normal operation. same gave 2.11 3.12 line 140% loading. From study, two novel techniques developed: A performance-based ranking classification devices.</p>