Research on Dynamic Reactive Power Optimization of Receiving Terminal Network Based on Voltage Infeasible Node

A dynamic reactive power optimization method for receiving end power grid with voltage infeasible nodes is proposed. Firstly, the reactive power compensation nodes are classified, and the basic concept of the system reactive compensation node is proposed. Then, on the basis of whether a voltage constraint unfeasible node is presented in a certain period, all the days are divided into feasible period cluster and infeasible interval cluster. On this basis, the receiving terminal of an unfeasible node with voltage is constructed. Dynamic reactive power optimization model of power grid. The model includes two sub models of dynamic reactive power optimization, which are unfeasible period cluster and feasible time interval cluster. In the former, a two phase algorithm based on homotopy interior point method and parallel coevolution algorithm is proposed, and the latter is solved by immune genetic algorithm. Finally, the effectiveness of the proposed method is verified by simulation analysis of the actual 25 node 110 kV high voltage distribution network. (paper)