Reactive Power Optimization of Sub-Blubber Rod in Active Distribution Network Based on Improved Grey Markov Model

Abstract

A wattless power optimization method for active energy distribution networks based on an improved grey Markov model was studied to improve the voltage drop caused by unreasonable wattless power distribution in centralized electricity supply modes. Select the normalized residual sequence method to modify the non-biased grey GM(1,1) model, use the non-biased grey GM(1,1) model that has completed the residual correction to obtain the system voltage index sequence, and use the Markov model to divide the system voltage index sequence Use the Markov state to establish an improved grey Markov model to obtain the prediction results of the system voltage of centralized electricity supply mode; take the lowest deviation of the system voltage prediction control as the goal, and establish the goal of the wattless power output of centralized electricity supply mode Function to solve the objective function under the condition of satisfying the system voltage constraint and the wattless power adjustment capacity constraint of centralized electricity supply mode, and realize the wattless power optimization of centralized electricity supply mode. The case analysis results indicate that this research method can achieve wattless power optimization of distribution networks.