Improvement of LVRT and transient stability of power system with wind farms using coordination of FACTS and PSSs controllers

Abstract

This paper presents the comparison of static synchronous series compensator (SSSC) and static synchronous compensator (STATCOM) performance on transient stability and low voltage ride through (LVRT) improvement of a multi-machine power system connected with wind farms. Also, power system stabilizers (PSSs) are installed on four synchronous machines. It is generally accepted that there is a threat to the stability of power systems with the penetration of wind farm. Therefore, in order to improve LVRT and transient stability in power system, the paper proposes using of PI controllers in wind farms and combination of the PSS and FACTS controllers. Also, In the present paper gravitational search algorithm (GSA) has been applied for controllers design.