Implementation of fuzzy unified power flow controller to control power flow dynamically in transmission line

This paper presents a fuzzy logic controller (FLC) based unified power flow controller (UPFC) for dynamic power flow control. FLC has been employed to provide dynamic control of series and shunt converters of UPFC. The proposed controller has been designed using PSCAD software and validated on IEEE 14 bus system network. The results show that the proposed method improves the dynamic power flow control, voltage profile and reduces the power loss in the transmission network. Moreover, the response of the proposed system is compared to proportional integral (PI) based UPFC.