Distributed Coordinated Voltage Control of Photovoltaic and Energy Storage System Based on Dynamic Consensus Algorithm

The construction of a high-proportion new energy power system is conducive to the realization of renewable energy utilization and the achievement of dual-carbon goals. Aiming at the voltage overrun problem caused by large-scale photovoltaic grid-connected in new energy power generation, this paper proposes a distributed coordinated voltage control strategy for photovoltaic and energy storage system based on a dynamic consensus algorithm. The voltage control method of low-voltage distribution network is analyzed, and the distributed control model of photovoltaic and energy storage system is established, which realizes the coordinated control of photovoltaic and energy storage system. The results of the calculation example show that the proposed strategy can effectively coordinate the reactive power control of PV with the active power control of energy storage system, and suppress the voltage overrun problem in the low-voltage distribution network.