Dynamic interactions in large scale photovoltaic power plants with frequency and voltage support

The increasing penetration of Large-Scale Photovoltaic Power Plants in the power system is raising concern potential stability issues due to dynamic interactions electronics components. In particular, Plant Controllers are starting provide a fast response for specific services, such as frequency response, which could trigger unexpected unstable with PV inverters or other grid Also, an eventual reduction synchronous generation lead high electronics, presents unexplored problems. This paper interaction and study connected grid. based on small-signal analysis employing eigenvalues participation factors identify modes. A linear model implemented apply analysis. validated equivalent non-linear time-domain simulations Matlab Simulink.