Analysis Method of Grid-Connected Capability of Distributed PV Based on Multi-Data Source Fusion

This paper investigates and analyzes the conditions that restrict the acceptance capacity of distributed PV at home and abroad, and summarizes the factors that affect the acceptance capacity of distributed PV. An index system of distributed PV grid-connected acceptance capability is established, which takes into account grid reliability, quality and security. According to the integration of multi-source heterogeneous data such as distributed PV access information, grid production management information and user load information, the distribution network model containing distributed PV is completed, so as to carry out the acceptance capacity analysis. The example analysis shows that: access to high voltage levels can improve the distributed PV absorption capacity of the distribution network in the same distribution area. In addtion, demand response can improve the distributed PV absorption capability of distribution network.