Power flow control in parallel transmission lines based on UPFC

The power flow controlled in the electric power network is one of the main
factors that affected the modern power systems development. The unified
power flow controller (UPFC) is a FACTS powerful device that can control
both active and reactive power flow of parallel transmission lines branches.
In this paper, modelling and simulation of active and reactive power flow
control in parallel transmission lines using UPFC with adaptive neuro-fuzzy
logic is proposed. The mathematical model of UPFC in power flow is also
proposed. The results show the ability of UPFC to control the flow of powers
components "active and reactive power" in the controlled line and thus
the overall power regulated between lines.