公开(公告)号：US20180087489A1

公开(公告)日：2018-03-29

申请号：US15828450

申请日：2017-12-01

Applicant: ABB Schweiz AG

Inventor： Moncef Chioua ,  Ni Ya Chen ,  RongRong Yu ,  Yingya Zhou ,  Yao Chen

IPC: F03D17/00 ,  G06F11/30

CPC classification number: F03D17/00 ,  F05B2240/96 ,  G06F11/30 ,  Y02B10/30

Abstract: A method for monitoring turbines of a windmill farm includes: providing a global nominal dataset containing frame data of the turbines of the windmill farm and continuous reference monitoring data of the turbines for a first period in a fault free state, the reference monitoring data including at least two same monitoring variables for each turbine; building a nominal global model based on the global nominal dataset which describes the relationship in between the windmill turbines and clustering the turbines according thereto; assigning the data of the global nominal dataset to respective nominal local datasets according to the clustering; and building a nominal local model for the turbines of each cluster based on the respective assigned nominal local datasets, the nominal local model being built such that a nonconformity index is provideable which indicates a degree of nonconformity between data projected on the local model and the model itself.