Index of Wind Power Grid System Based on Multi-Index Weighted Stability Method

Abstract

This paper proposes an optimal mean power function index based on the weighted multi-index method for the electrical network containing wind farm. It combines the index of Jacobi matrix mutual condition number with the index of sensitivity inverse matrix elements the power and are obtained by the self program. The EPRI-36 node test system and a regional power grid containing large wind farms are selected to test the validity of the proposed index. The results show that this index has a shorter calculation time and accurate prediction compared to the traditional voltage stability indexes. It is available to predict the voltage stability of the electrical network containing wind farm under light load and provide a new theoretical method to analyze the voltage stability.