Abnormal vibration identification method and device and wind turbine generator

• Main Authors: NIU XINYUAN, TIAN HAO
• Format: Patent
• Language: Chinese; English
• Published: 08.11.2022
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention provides an abnormal vibration identification method and device and a wind turbine generator, and the method comprises the steps: screening the operation data of a target wind turbine generator in a preset time period, obtaining an operation data set, obtaining a yaw state data set and a non-yaw state data set, and determining first vibration amplitude distribution and second vibration amplitude distribution; and determining abnormal vibration information of the target wind driven generator based on the first vibration amplitude distribution and the second vibration amplitude distribution. According to the method, the first vibration amplitude distribution obtained by analyzing the operation data in the yaw state and the second vibration amplitude distribution obtained by analyzing the operation data in the non-yaw state are comprehensively compared and analyzed, and the abnormal vibration information of the wind driven generator can be determined according to the analysis result; various reason