Synthesis of neural controller applied to flexible AC transmission systems

This paper first addresses the power system stability issue involving the r egular generator-angle transient stability and load-driven voltage instabil ity. Transient stabilization of simplified power systems equipped with the flexible ac transmission system (FACTS) device, the thyristor-controlled se ries capacitor (TCSC), is studied with consideration of unknown loads. With some off-line time-optimal trajectories computed based on the switching-ti mes-variation method (STVM), some techniques are del eloped to synthesize r obust near-time-optimal neural controllers. The theoretical support for the se techniques is presented. The simulations illustrate the performance of t he synthesized neural controllers. Furthermore, the results developed can b e readily generalized to more general nonlinear systems.