With increasing penetration of solar PV systems, it is crucial to assess voltage stability of the power grid to implement timely corrective actions to avoid any potential power system failures.
This paper presented a novel framework for voltage stability assessment of a power system embedded with solar PV systems and stochastic loads.
Solar PV system with reactive power capability can enhance voltage stability of power grid. Grid operators have imposed regulatory legislations or grid codes to ensure that PV systems can support grid stability during grid disturbance as well as normal operating condition .
When large-scale PV stations are connected to the power grid, it will inevitably have an adverse impact on the stability of the power system, increasing the complexity and uncertainty of grid operation [4,5]. Therefore, the influence of PV output on the grid-connected system's voltage stability must be studied . ...
Grid integration of solar photovoltaic (PV) systems has been escalating in recent years, with two main motivations: reducing greenhouse gas emission and minimizing energy cost. However, the intermittent nature of solar PV generated power can significantly affect the grid voltage stability.
The proposed framework has been validated through rigorous simulation studies on the modified IEEE 14 bus test system with different PV penetration levels and stochastic loads. The simulation study results provide a clear insight about the impact of high penetration of PV energy sources on grid voltage stability.