• Ankit Tandon
• Dr. P.C. Bapna
• Shruti Bhadviya

As population of the world is increasing day by day the energy requirements are also increasing continuously. Consistently increase requirements of electrical power transmission and lack of long term power transmission system planning causes less security and reduction in quality of the electrical power. EPRI (Electrical power research institute) introduced a new technology commonly known by FACTS (Flexible alternating current transmission system) to reduce or compensate some of these difficulties. Introduction of FACTS controllers in existing transmission network provide flexibility in the process of power transmission and control. FACTS controllers have the capability to compensate the system parameters like voltage, current, impedance (series and shunt) active and reactive power etc. This paper is a complete overview of existing FACTS devices. The main emphasis is to be placed on main four devices (SVC, SSSC, STATCOM, and UPFC); modeling and simulation of uncompensated and FACTS compensated system and their control actions will be analyzed and evaluated. The step of modeling with MATLAB and Simulink of different FACTS compensated system is presented and simulation results are discussed.

controllers, SVC, SSSC, STATCOM, UPFC, Active and reactive power comparison

"Performance Analysis of Transmission Lines By ‘Facts’ Technology Against L-G Fault", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.357-364, September-2018, Available :http://www.jetir.org/papers/JETIRB006066.pdf

"Performance Analysis of Transmission Lines By ‘Facts’ Technology Against L-G Fault", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp357-364, September-2018, Available at : http://www.jetir.org/papers/JETIRB006066.pdf