Impact of stochastic nature of wind and solar energy sources on sub synchronous oscillations in DFIG-based wind farms with PV installations nearby

Sub synchronous oscillation (SSO) phenomena brought on by the interaction of renewable energy sources with different power grid components can be stated as a serious challenge in the modern power grid. Many studies have investigated sub synchronous oscillations in wind farms connected to series compensated transmission lines. Limited research works explore sub synchronous oscillation phenomenon in grid connected photovoltaic (PV) plants and confirm possible occurrence of certain type of SSO in grid connected PV systems. As the location of installation of PV farms depend on factors such as land availability, there could be possible instances when PV installations are connected near wind farms connected to series compensated transmission lines. Hence, it is worthy to study the impact of PV system on SSO in nearby wind farms with doubly fed induction generator (DFIG) technology. Due to the intermittent nature of both wind and solar energy sources, the impact of their intermittent nature on sub synchronous oscillations in DFIG based wind farms with PV farms nearby should be explored. This paper uses a probabilistic methodology to explore the impact of intermittency of wind and solar on sub synchronous oscillations in DFIG based wind farms connected to series compensated lines with PV installations nearby.