电机与控制应用2024，Vol.51Issue(7)：74-83,10.DOI:10.12177/emca.2024.064
一种用于大型风电机组叶片自重载荷标定的弯矩解析方法研究
Research on a Bending Moment Analytic Method for Blade Gravity Load Calibration of the Large Wind Turbines
吴蔚 1何中一 2徐秉俊3
作者信息
- 1. 中国质量认证中心上海分中心,上海 201206||上海中认尚科新能源技术有限公司,上海 201206
- 2. 上海中认尚科新能源技术有限公司,上海 201206
- 3. 上海电器科学研究所(集团)有限公司,上海 200063
- 折叠
摘要
Abstract
In mechanical load measurement for large wind turbines,the accuracy of load calibration for edgewise and flatwise bending moments implemented by blade gravity has a direct influence on the testing effectiveness for blade and rotor loads.Therefore,analyzing the bending moment analytic results of the blade gravity at the strain gauge measurement position is the key to blade load calibration.Firstly,using the principle of analytical geometry,an bending moment analytic method for blade gravity is proposed based on optimized three-dimensional coordinate system and coordinate transformation.Secondly,in order to eliminate the influence of the main shaft tilt angle on the optimized three-dimensional coordinate system,a method to adjust the direction of the blade gravity vector in the optimized coordinate system is proposed,and the analytical expressions of blade edgewise moment and flatwise moment are obtained taking into account various influential factors.Finally,in the actual blade load test project,the two calibration analysis methods are applied respectively,and the blade load test results obtained by the two methods have good consistency and representativity.The validity and feasibility of the proposed analytic method for gravity load calibration of blade bending moments are verified by theoretical analysis and testing results.关键词
风电机组/机械载荷/载荷标定/解析几何/弦摆振弯矩/弦挥舞弯矩Key words
wind turbines/mechanical load/load calibration/analytic geometry/edgewise moment/flatwise moment分类
信息技术与安全科学引用本文复制引用
吴蔚,何中一,徐秉俊..一种用于大型风电机组叶片自重载荷标定的弯矩解析方法研究[J].电机与控制应用,2024,51(7):74-83,10.
