Hosting Capacity Assessment for Distributed PV in Distribution Network Considering Demand Response Based on Fusion of Multiple Data Sources

Abstract

Considering the incomplete information in distribution network, this paper proposes a method of hosting capacity assessment for distributed photovoltaic (PV) generation integrated into distribution network considering demand response based on fusion of multiple data sources. Via integration of real-time data and historical data from power grid dispatching system, distribution automation system, distributed generation monitoring and control system, and electricity data and historical data from metering system, marketing system, load control system, the hosting capacity analysis model of the distributed generation is complete. Considering the load demand response ability in power system’s voltage regulation based on the typical load characteristics, the hosting capacity of distribution network is analyzed, taking the limit value of voltage deviation and voltage fluctuation as the quantitative calculation, the safety index of short circuit current and branch current carrying capacity as the constraint. Finally, the experimental results from the actual distribution network reveal that, with the demand response participating in power system’s voltage regulation, the distributed PV accommodation capacity of the distribution network has been significantly improved.