This paper presents a small signal stability analysis to assess the issues facing PV (photovoltaic) inverters connected weak grid. It is revealed that cause of transient instabilities, either high-frequency or low-frequency oscillations, dominated by outer control loops and grid strength. However, most challenging oscillations are induced coupling interaction between loop controller PLL (Phase-...

This thesis investigates the stability effects of the integration of wind power on multimachine power systems. First, the small-signal stability effects of turbine governors connected to synchronous generators in the presence of large-scale penetration of wind and load power disturbances are analyzed. Results suggest that tuning the turbine governors when wind power generation is present can im...

The development of a network termed microgrid (MG) has been motivated owing to augmentation in renewable energy source (RES) infiltration along with the utilization enhanced power electronic technologies. Recently, more popularity gained by hybrid MG (HMG). Maintaining system’s (PS) small-signal stability (SSS) is highly complicated during enhancement RES. SSS focused on numerous existing metho...