Wind power generation facility abnormality sign diagnosis system, management device, and abnormality sign diagnosis method

摘要

An abnormality sign diagnosis system for a wind turbine generator capable of accurately predicting a replacement timing of a spindle bearing. An abnormality sign diagnosis system for a wind power generation facility includes a wind power generation facility and a management device 100. The management device 100 determines the main shaft bearing at that time according to the state of grease of the main shaft bearing of the wind power generation facility. The current diagnosis mode unit 23 for diagnosing abnormal signs of the wind power generation, the vibration value of the main shaft bearing is acquired and used as the initial vibration value, and the main shaft of the wind power generation facility estimated from the time when a predetermined time has elapsed from the start of operation of the wind power generation facility A predictive diagnosis mode unit for diagnosing a future sign of abnormality of the main shaft bearing based on the accumulated rotational speed and the initial vibration value at the time, and predicting the replacement time of the main shaft bearing; [Selection] Figure 2