A Power Flow Control Strategy for High Proportion Distributed PV Connected to Low Voltage Distribution Network

In this paper, a power flow control algorithm based on synchronous voltage feedback for high-proportion distributed photovoltaic systems in three-phase unbalanced low-voltage distribution networks is proposed. The algorithm is designed to improve the stability and economy of the power system, especially in the case of widespread access to distributed photovoltaics. Through the synchronous voltage feedback mechanism, the algorithm can monitor and adjust the voltage of each phase of the grid in real time, so as to optimize the interaction between photovoltaic power generation and the distribution network. This algorithm adjusts the reactive power output of photovoltaic inverter with on-line voltage feedback technology, effectively manages the injection of photovoltaic voltage into the distribution network, and verifies the effectiveness of the power flow control algorithm through simulation research in Matlab. This control strategy not only optimizes the power flow, but also reduces energy losses and enhances the overall operational efficiency of the grid through precise voltage management.