Random power flow calculation and safety evaluation for large-scale wind turbines
LI Jiayi
ZHOU Jiacheng
HU Shiyang
JIANG Weimin
LI Yilin
YAN Wenrui
Abstract：In order to study the influence of large-scale wind turbine access on the safe and stable operation of power system,the probabilistic power flow model of wind turbine is established,and the probabilistic power flow is calculated by Monte Carlo simulation method and semi-invariant method.The results show that the connection of large-scale wind turbines will increase the risk of node voltage exceeding the limit,especially in areas with weak grid structure.In view of the above problems,measures including wind turbine output prediction,optimization of system operation mode,enhancement of standby capacity,and improvement of protection and control strategies are proposed to reduce the probability of voltage exceedance and improve grid security.The research can provide reference for the safe operation and intelligent dispatching of power grid.
Keywords：wind power systemMonte Carlo simulationsemi-invariant methodstochastic power flow analysissafety evaluation
Publication Date：2025-02-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 50-52 )