Wind Turbine Tower Sway Monitoring

Wind turbine tower sway monitoring

A 100-metre tower is a flexible structure that is rarely completely still. The WDS826FL dynamic inclinometer and GKP3 low-frequency vibration sensor are designed to give your condition-monitoring system a continuous picture of tower attitude, sway amplitude and structural resonance — so that developing issues can be identified long before they become serious.

0.0005° resolution

20 Hz low-frequency response

IP67 · RS485 / RS422 / RS232

Why wind towers need dedicated low-frequency sensing

Wind turbine towers oscillate continually under rotor thrust, wind gusts and blade imbalance. These signals generally sit below 20 Hz, where conventional tilt switches and vibration switches tend to be less effective. Dedicated low-frequency tilt and vibration sensors are designed to turn this otherwise hard-to-capture information into earlier indications of yaw misalignment, foundation softening and structural fatigue.

Typical use cases

From slow sway to structural resonance

Tower resonance tracking — the GKP3 resolves vibration down to 1 μg in the 0.1–100 Hz band, so blade imbalance, yaw misalignment and foundation softening may show up in the spectrum well before they are visible on site.
Slow-sway attitude — the WDS826FL is designed for low-frequency dynamic tilt, capturing the slowly changing tower lean that static sensors are not intended to resolve.
Foundation settlement — a stable zero-reference in the tower base helps detect settlement and tilt of the foundation ring itself.
Fatigue life management — paired tilt and vibration data feeds the turbine CMS, so maintenance is scheduled by condition instead of by calendar.