Different structural parts of a wind turbine oscillate, move, or vibrate. Monitoring the tower, blades, nacelle, main bearing, and gearbox is an important part of the wind turbine safety chain.
Should these components oscillate or vibrate too much, they can endanger the wind turbine or cause severe secondary damage.
Use a monitor with accurate filters
The key to successful turbine condition monitoring is to use filters of high accuracy and precision to get a correct frequency response.
The structural frequency components are often distributed very closely on a frequency scale. Consequently, filters must have high selectivity in order to pass only the frequency components of interest.
Simple filters typically struggle to suppress structural resonance frequencies in the higher frequency range, resulting in false or premature alarms and added downtime.
An equally important parameter is the time domain response, including time delay, phase, and transient response.
Reliable filters for your wind turbine
The PCH 1026 is a fully digital vibration monitor developed in close collaboration with the wind industry to meet the exact requirements of the turbine safety chain.
It features 12 simultaneously operating filter bands with high precision filters, which are designed to selectively pass frequencies from within the band of the structural component of interest and suppress all irrelevant frequencies.
You can choose from a variety of filter types to meet the required compromise between the frequency- and time domain responses. Customised filters are also available on request.
You can always trust the intelligent protection system from PCH Engineering, and consequently, maximize the grid time of the wind turbine even under the toughest wind conditions.
Where to mount vibration sensors on wind turbines
The PCH 1026 turbine vibration monitor comes with several outputs and is highly customisable in terms of sensors.
Typically, the monitor is mounted in the nacelle from where it monitors the structural vibrations.
If necessary extra sensors can be added for multiple measuring points.