Abnormity monitoring method, device, server and system for tower drum in wind turbine generator

The invention discloses an anomaly monitoring method, device, server and system for a tower drum in a wind turbine generator. The method comprises the steps that the static absolute displacement of the tower drum and the dynamic relative displacement of the tower drum relative to the tower top are obtained; according to the static absolute displacement and the dynamic relative displacement, determining a target load of the tower drum in a preset time period; and according to the target load, whether the tower drum is abnormal or not within a preset time period is determined. According to the embodiment of the invention, the online monitoring of the tower drum state is realized, and the monitoring accuracy of the tower drum state is improved. 本发明公开了一种风电机组中塔筒的异常监测方法、装置、服务器及系统。该方法包括：获取所述塔筒的静态绝对位移和所述塔筒相对于塔顶的动态相对位移；根据所述静态绝对位移和所述动态相对位移，确定预设时间周期内所述塔筒的目标载荷；根据所述目标载荷，确定预设时间周期内所述塔筒是否异常。本发明实施例实现了塔筒状态的在线监测，提高了塔筒状态的监测准确度。