Research on Dispatching Coordination Control Method of Distribution Network with Photovoltaic Power Generation

Abstract

The coordination control of photovoltaic power distribution networks faces challenges such as inaccurate load power prediction and long coordination times. To address these issues, this paper proposes a scheduling coordination control method for photovoltaic power distribution networks. The method involves analyzing the structure of the photovoltaic power generation system, obtaining the operation state of the network using disturbance observation methods, building a dispatching coordination control model, designing constraints for dispatching coordination control, building a power balance function, and solving the total demand power of the load. An algorithm flow is designed to optimize the coordination control of photovoltaic distribution networks. Experimental results demonstrate that the accuracy of photovoltaic unit power prediction using this method reaches 98%, with power grid dispatching and coordination control times always less than 3.8 seconds. This approach effectively improves the effectiveness of distribution network dispatching and coordination control.