基于特征值分析法的双馈风机传动链扭振分析

Torsional Vibration Analysis of Double-fed Wind Turbine Drive Train Based on Eigenvalue Analysis

本文构建了双馈风电机组传动链三质量块动力学模型,基于特征值分析法对该模型进行扭振分析,通过分析得到风电机组的特征值、特征向量、振荡频率、振型、阻尼比和参与因子等信息,确定扭振过程中振幅较大处以及造成振幅较大的主要影响因素。结果表明,该文构建的双馈风电机组传动链模型和采用的特征值分析方法是有效和可靠的,为风电机组的扭振分析研究提供了方法参考。

There is a three masses model is used as the drive train in wind turbine in this paper.The torsional vibration analysis of double-fed wind turbine drive train was based on eigenvalue analysis.Some information can be obtained through analysis such as eigenvalues,feature vector,oscillating frequency,vibration model,damping ratio and participation factor.The amplitude during the vibration and its main cause can be determined.The results show that the drive train model in wind turbine and the eigenvalue analysis are effective and reliable.It provides a reference method for the analysis of wind turbine torsional vibration.