Reliability evaluation of wind-storage power generation system considering fatigue failure of wind turbine gearbox

The gearbox of the wind turbine is an important part of the transmission system, and the fatigue failure caused by its long-term operation cannot be ignored. At the same time, the randomness and intermittency of wind power output should also be paid attention to. Therefore, this paper proposes a reliability assessment strategy for wind-storage power generation systems considering fatigue faults of wind turbine gearboxes, introducing fatigue faults into the traditional reliability assessment model of power generation systems, and connecting the energy storage system. The Monte Carlo method is used to calculate the reliability parameters of the power generation system, and the changes of reliability parameters under different operating scenarios are analyzed. The results show that considering the fatigue failure of the wind turbine gearbox can improve the accuracy of the power generation system reliability assessment, and the connection of the energy storage system can improve the reliability of the power generation system.