This paper investigates the function of DASM (Doubly-fed Asynchronous Machine) with emphasis placed on its ability to stabilize the power system〔1〕. P (active power) and Q (reactive power) compensations from DASM can be determined by fuzzy logic, and regulated independently through secondary-excitation controlling 〔2〕. Simulation results by EMTP show that such 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.application/pdfjournal articl
