Blade multi-section load test assembly, blade and wind turbine generator set
By using fiber optic grating array sensors on wind turbine blades for load testing, the problems of electromagnetic interference and temperature drift of traditional strain gauges have been solved, achieving higher testing accuracy and stability.
CN224380007UActive Publication Date: 2026-06-19SANY ELECTRIC CO LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANY ELECTRIC CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
Traditional strain gauges are susceptible to electromagnetic interference and temperature drift in wind turbine blade load testing, resulting in poor long-term stability and affecting test accuracy.
Method used
The bending moment load of the blade is collected by a fiber optic grating array sensor. The fiber optic grating array sensor is not easily affected by electromagnetic interference and temperature drift, and has good long-term stability.
Benefits of technology
This improved the accuracy and stability of blade load testing and reduced the effects of electromagnetic interference and temperature drift.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224380007U_ABST
Abstract
This application provides a blade multi-section load testing assembly, a blade, and a wind turbine generator. It includes a signal acquisition unit; a fiber Bragg grating array sensor for mounting on the blade; the fiber Bragg grating array sensor has multiple connection terminals, at least two of which are connected to the signal acquisition unit. This application uses a fiber Bragg grating array sensor to acquire the bending moment load on the blade. Compared to the traditional method using strain gauges, the fiber Bragg grating array sensor is less susceptible to electromagnetic interference and temperature drift, and exhibits better long-term stability, thus significantly improving the accuracy of blade load testing.
Need to check novelty before this filing date? Find Prior Art