Simulation Analysis of Transient Stability of Regional Power Grid with High Penetration of Photovoltaic Power Generation Integration

Abstract

Based on the typical architecture of photovoltaic power generation system, this paper establishes a simulation model and an arithmetic system for grid-connected photovoltaic power generation applicable to power system transient stability analysis, and comparatively analyzes the influence of transient stability of regional power grid before and after high permeability photovoltaic integration. The study shows that: high permeability PV power generation integration to the grid leads to the system missing some damping and inertia, and the suppression of frequency and voltage oscillations is weakened, which cannot provide sufficient synchronization support capability and leads to the reduction of the transient stability of the system.