Abstract: Facts devices are used to control power flow in the transmission grid to relieve congestion and limit loop flows. High solutions. This paper introduces the concept of Distributed FACTS (D-FACTS) as an alternative approach to realizing cost-effective power flow control. The UPFC is also capable of improving transient stability in a power system. It is the most complex power electronic system for controlling the power flow in an electrical power system. The circuit model is developed for UPFC using rectifier and inverter circuits. The control angle is varied to vary the real and reactive powers at the receiving end. Details of implementation and system impact are presented in the paper, along with experimental results.