Design of new load security region analysis method for distributed photovoltaic development and consumption in distribution area

Abstract

In order to avoid the influence of unbalanced load in distribution station area, resulting in economic losses in distribution station area, a new analysis method of load security region in distribution station area is proposed. Design the technical scheme of coordinated operation control of source, grid, load and storage for safe and efficient power supply in rural distribution station area, and collect multi-source data of load terminals in new distribution station area; According to the operation control architecture combining safe operation risk with flexibility and rigidity, the load balance objective function of the new distribution station area is calculated, and the load security region analysis of the new distribution station area is realized. The experimental results show that according to the actual state and monitoring results at different time points, the early warning information about the load safety region of the distribution station area is obtained. When the load of the new distribution station area is in the low-load scene, the voltage amplitude in this area changes little, while when it is in the high-load scene, the voltage amplitude changes greatly.