LVRT improvement and transient stability enhancement of power systems based on renewable energy resources using the coordination of SSSC and PSSs controllers

摘要

This study presents the transient stability and low voltage ride through (LVRT) improvement of IEEE 68-bus system connected with wind farms and photovoltaic (PV) plant through coordination of static synchronous series compensator (SSSC) and power system stabilisers (PSSs) controllers. It is generally accepted that there is a threat to the stability of power systems with the penetration of wind farm and PV plant. Therefore, in order to improve transient stability and LVRT in the power system, this study proposes the application of proportional and integral controllers in PV and wind farm controllers and a combination of PSS and SSSC controllers. Also, adaptive velocity update relaxation particle swarm optimisation algorithm and genetic algorithm have been applied and compared for controllers design.