Control of yaw drive of segmented toothed yaw ring for wind turbine
By segmenting the drive ring and controlling the torque, the challenges of manufacturing, replacing, and transporting large wind turbines have been solved, improving operational safety and lifespan.
CN116113761BActive Publication Date: 2026-06-19VESTAS WIND SYSTEMS AS
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- VESTAS WIND SYSTEMS AS
- Filing Date
- 2021-06-15
- Publication Date
- 2026-06-19
AI Technical Summary
⚠Technical Problem
As wind turbines grow larger, so do drive rings, increasing the torque required for nacelle rotation. This leads to difficulties in manufacturing, replacement, and transportation, and also affects the expected lifespan of the yaw components.
⚗Method used
The drive ring is manufactured in segments, and the intersection point position is limited and the torque is reduced by the controller. The reduced torque is applied at the intersection point by the passing drive device, which reduces wear and extends service life.
🎯Benefits of technology
This enables easier manufacturing, replacement, and transportation, improving the operational safety of wind turbines and the lifespan of yaw components.
✦ Generated by Eureka AI based on patent content.
Abstract
A method for yawing a nacelle in a wind turbine, the wind turbine having a yaw assembly including a drive ring and a plurality of drive units configured to apply torque during movement along the drive ring, thereby moving the nacelle relative to the tower. The drive ring is composed of multiple drive ring segments connected at junctions. The method includes defining the position of each junction, defining a reference torque applied by the drive units during movement along the drive ring, defining a reduced torque below the reference torque, determining when a passing drive unit moves past the junction position, and applying a reduced torque by the passing drive unit to improve lifespan.
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