Uncertainty model for rate of change of frequency analysis with high renewable energy participation

<span lang="EN-US">Large-scale integration of inverter-based renewables is displacing synchronous machine generation, causing a reduction in the inertia electrical power systems. This reflected an increase rate change frequency (RoCoF). Additionally, variation RoCoF will depend on uncertainty associated with generation non-conventional renewable energy sources. For planning operation system, it essential to know range when there are disturbances system and uncertainties sources energy. paper proposes establish calculation confidence interval that considers these uncertainties. So, this method consider based probabilistic point estimate (PEM); considering multiple correlated or uncorrelated behavior their powers injected into system. On other hand, as different proposals calculate RoCoF, presents application model three proposed methods.</span>