Guidelines for vibration condition monitoring and diagnose of wind turbine generator
1 Scope
This standard specifies the type of wind turbine vibration monitoring system, installation principle of sensors, measurement type and value, technical conditions of vibration monitoring system, evaluation of vibration value, and signal processing and analysis methods.
This standard is applicable to horizontal axis wind turbine generator with unit capacity greater than or equal to 1.5MW. Other wind turbines may refer to it according to their own characteristics.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 19873.1-2005 Condition monitoring and diagnostics of machine—Vibration monitoring—Part 1: General procedures
GB/T 19873.2-2009 Condition monitoring and diagnostics of machine—Vibration monitoring—Part 2: Processing, analysis and presentation of vibration data
IEC 61850-2002 Communication networks and systems in substations
3 Terms and definitions
For the purpose of this standard, the following terms and definitions apply.
3.1
breakdown maintenance
maintenance after wind turbine fails
3.2
condition-based maintenance
maintenance determined according to wind turbine condition.
3.3
condition monitoring
detection and acquisition of information and data reflecting the wind turbine condition
3.4
diagnostics
examination of symptoms and syndrome in order to determine the nature (type, condition, degree) of the fault or failure
3.5
failure
loss of ability to perform a specified function
3.6
fault
the condition of a component or assembly of a wind turbine when it is deteriorated or abnormal, which may lead to failure of the wind turbine
3.7
alarm
operation signal or information designed for notification purpose when the selected parameter or its logical combination is abnormal and corrective action is required
3.8
alert
operation signal or warning message designed for notification purpose when the selected parameter or its logical combination is abnormal and more attention is required
Foreword i
Introduction ii
1 Scope
2 Normative references
3 Terms and definitions
4 Vibration condition monitoring system
5 Sensor
6 Technical requirements for vibration condition monitoring system
7 Measurement and evaluation
Anne A (Informative) Vibration monitoring flow chart
Annex B (Informative) Evaluation method of vibration value
Annex C (Informative) Common failure causes and their corresponding characteristic frequencies
