Power system stability enhancement by adaptive fuzzy control

This paper presents a systematic approach to the enhancement of power system stability using adaptive fuzzy controllers. The adaptive fuzzy controller design, which is based on the main concepts of sliding mode control, is applied to variable series capacitors on a single-machine infinite-bus model power system. The fuzzy control rules that guarantee power system stability are systematically obtained, through an adaptation mechanism introduced in the operation part. This technique, with a qualitative experimental model, enables the adaptive fuzzy controller to be profitable for consistent performance in the face of changing operating conditions. The effectiveness of the proposed control is demonstrated by computer simulations