Abstract
Condition monitoring of machines working under non-stationary operations is one of the most challenging problems in maintenance. A wind turbine is an example of such class of machines. One of effective approaches may be to identify operating conditions and investigate their influence on used diagnostic features. Commonly used methods based on measurement of electric current, rotational speed, power and other process variables require additional equipment (sensors, acquisition cards) and software. It is proposed to use advanced signal processing techniques for instantaneous shaft speed recovery from a vibration signal. It may be used instead of extra channels or in parallel as signal verification.
Original language | English (US) |
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Pages (from-to) | 701-712 |
Number of pages | 12 |
Journal | Metrology and Measurement Systems |
Volume | 18 |
Issue number | 4 |
DOIs | |
State | Published - 2011 |
Externally published | Yes |
Keywords
- Instantaneous frequency
- Spectrogram
- Speed estimation
- Speed tracking
- Wind turbines
ASJC Scopus subject areas
- Control and Systems Engineering
- Instrumentation