Analysis on Relay Protection of User Lateral Grid-connected PV Power Generation

The paper analyzes the influence of user lateral grid-connected PV generation on relay protection of distribution network, and proposes the opinions for the economic technique and selectivity of protection. The paper applies DIgSILENT PowerFactory software to make simulation calculation and analysis on the actual projects, and proposes relay protection allocation scheme and protection setting rules, which provides engineering references for the grid-connected PV power projects.