Static Sustenance of Power System Stability Using FLC Based UPFC in SMIB Power System
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2013, Vol 3, Issue 4
Abstract
The unified power flow controller is the most versatile and complex power electronic equipment that has emerged as the indispensable equipment used to control the power flow ,to boost the transmission capacity and to optimize stability of the power system. Low frequency power system oscillations are inevitable characteristics of power systems and they greatly affect the transmission line transfer capability and power system stability. This paper present a control method for damping low frequency system oscillations using fuzzy logic controller installed in a single- machine infinite-bus power system. The UPFC uses two converters coupled through a common DC link to improve the dynamic performance of the system. System response with proportional UPFC controller and proportional fuzzy logic(using mamdani-type inference) based UPFC controller are compared at variable loading conditions through software simulation. The results of the simulation shows that the UPFC with fuzzy-based controller is effectively damping the Low frequency oscillations.
Authors and Affiliations
L. Harini
Keywords
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