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이정필,정현화,김창현,정형환 동아대학교 정보기술연구소 2001 情報通信硏究所論文誌 Vol.8 No.2
In this paper, QFT robust control strategy is proposed to improve stability of power systems in the presence of parametric uncertainty. The basic idea in QFT is to convert design specifications of a closed loop system and plant uncertainties into robust stability and performance bounds on the open loop transmission of the nominal system and then to design a controller by using the gain-phase loop shaping technique. The robustness of the QFT controller has been investigated on a single machine infinite bus model by nonlinear simulations.