边缘计算赋能的风电螺栓力矩实时校验与校准方法及系统

By using edge computing and multi-source data fusion technology, the problems of sensor drift and operating condition changes in wind turbine bolt monitoring have been solved, enabling accurate real-time verification and calibration of the axial force of wind turbine bolts, thus improving the reliability and adaptability of the system.

CN122149724BActive Publication Date: 2026-07-17成都风润新能科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
成都风润新能科技有限公司
Filing Date
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing wind turbine bolt monitoring technologies cannot distinguish between sensor drift and actual loosening, and fixed thresholds cannot adapt to changes in operating conditions, resulting in inaccurate monitoring data and high operation and maintenance costs.

Method used

By employing edge computing, the friction coefficient and temperature compensation coefficient of the bolt are obtained through the tightening-loosening process. Combined with strain sensors and ultrasonic sensors, multi-source data fusion is performed to achieve real-time verification and calibration of axial force, including parameter calibration, synchronous acquisition, axial force calculation, drift discrimination, and dynamic verification steps.

Benefits of technology

It enables online identification of sensor status and accurate measurement of axial force, improving the reliability and adaptability of the monitoring system and reducing false alarm rate and maintenance costs.

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Abstract

本发明提供了边缘计算赋能的风电螺栓力矩实时校验与校准方法及系统,属于风力发电技术领域。方法包括:通过拧紧过程获取螺栓摩擦系数及应变传感器的温度补偿系数;运行中同步采集应变、温度、超声波飞行时间及机组工况参数;分别计算应变法轴向力与超声波法轴向力;通过双轴向力交叉验证及相邻螺栓空间一致性分析,判断智能传感器的零点漂移状态;根据工况分区设定自适应校验阈值进行动态校验;识别漂移时更新零点修正量,识别轴向力异常时执行分级校准。本发明通过多源传感融合与边缘计算,实现了传感器漂移与真实松动的在线辨识及动态校准,解决了固定阈值无法适应工况变化的问题,提升了力测量仪表的长期可靠性与校验精度。
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