A basic study of fuzzy-logic-based power system stabilization with doubly-fed asynchronous machine

This paper investigates the function of DASM (doubly-fed asynchronous machine) with emphasis placed on its ability to stabilize the power system. P (active power) and Q (reactive power) compensations from DASM can be determined by fuzzy logic, and regulated independently through secondary-excitation controlling. Simulation results by EMTP show that such a system can restore the power system to a normal operating condition rapidly even following severe transmission-line failures. Comparison studies have also been performed between a conventional controller and proposed fuzzy-logic controller.