The invention discloses a fan
fault analysis and operation and maintenance decision support method based on a
new energy monitoring system, belongs to the field of
new energy power generation monitoring, and aims at solving the problems that an existing
system is low in
fault recognition precision, depends on artificial experience and is not fully mined in
data value. According to the method, a wind
turbine generator
SCADA system, meteorological data and operation log multi-
source data are integrated, and a five-dimensional fault feature tag set of electrical and mechanical faults is constructed; after module pre-classification, a
DBSCAN clustering
algorithm is adopted for analysis, and samples with the
similarity matching degree smaller than 60% of a new clustering center and an original clustering center serve as newly-added typical cases to update a fault
processing knowledge manual; when the matching between the unit parameters and typical faults is greater than or equal to 80%, automatic early warning is carried out and a
processing scheme is pushed; carrying out
preventive maintenance in combination with a
time sequence model, optimizing a
spare part inventory according to a weighted model, and pushing a case when the matching between a fault and a historical case is greater than 90%; the method improves the fault diagnosis precision, shortens the
processing time, reduces the operation and maintenance cost, and is suitable for various manufacturer models.