Reactive power optimization of distributed photovoltaic distribution network based on improved particle swarm algorithm

Abstract

With the increasingly close relationship between renewable energy and the distribution network, this article proposes a reactive power distribution network based on a series of problems such as reactive power fluctuations, network loss increases, and voltage fluctuations in the distribution network. The optimization method is to establish a distribution network reactive power optimization model with the goal of minimizing the new function formed by the entire system loss and the absolute value of the voltage fluctuation; then, the algorithm is optimized by the method proposed in this paper, and then the optimized algorithm is used to The model is solved; finally, the IEEE-33 node system with some nodes connected to renewable energy is used for simulation verification. The simulation results show that the model proposed in the article can greatly reduce the network loss, the total voltage fluctuation is smaller, the compensation amount of the reactive power compensation device is less, and the construction of related devices can be reduced, thereby reducing the investment cost of the distribution network.