Research on Voltage Control Strategy in Distribution Network with Distributed Generation

摘要

In distribution networks with distributed generation(DG) and flexible loads, the power of distributed power sources and flexible loads can change greatly in a short period of time. This results in a significant increase in the uncertainty of the distribution network, and the voltages of its nodes have a risk of exceeding the limits. This paper proposes a control strategy for distribution network voltage. By analyzing the real-time status of the distribution network, based on the analysis of the sensitivity between the reactive power and the voltage, the voltage regulation region is divided to adjust the reactive power of DG. Based on the improved particle swarm algorithm, the active power of DG is optimized, so that the node voltage of the distribution network system is adjusted, and the effectiveness of the proposed control strategy is verified through simulation.