双馈式风力发电机齿轮故障振动诊断与失效分析  

Vibration Diagnosis and Failure Analysis of Doubly⁃Fed Wind Turbine Gear Faults

作　　者：王子顺 汪韵朗 WANG Zishun;WANG Yunlang(Mingyang Smart Energy Group Co.,Ltd.,Zhongshan 528400,China)

机构地区：[1]明阳智慧能源集团股份公司,广东中山528400

出　　处：《测试技术学报》2025年第2期190-210,共21页Journal of Test and Measurement Technology

摘　　要：针对双馈风力发电机组常见的齿轮故障问题,采用振动分析及失效分析检测进行了深入研究。通过搭建的风电机组传动链监测系统,首先对齿轮断裂和开裂两种典型故障进行了时域信号预处理及对比分析,提取出啮合频率及其边带成分的特征。随后,利用扫描电镜和能谱仪等对失效部位进行了详细的失效分析,揭示了失效的形成机理,特别是在开裂失效中,发现了夹杂物对裂纹形成的影响。通过金相和化学成分分析验证了失效性质和原因。研究结果表明,该综合诊断方法有效提高了风力发电机的可靠性和运行效率,降低了维护成本,对风电行业的设备管理具有重要意义。Aiming at the common gear failure problems of doubly-fed wind turbines,this study adopts vibration analysis and failure analysis detection for in-depth research.By constructing a wind turbine drive chain monitoring system,the two typical failures of broken and cracked gears were firstly pre-processed and comparatively analyzed in time domain signals,and the characteristics of the meshing frequency and its side-band components were extracted.Subsequently,detailed failure analysis of the failure site was car-ried out using tools such as a scanning electron microscope and energy spectrometer,which revealed the formation mechanism of the failure,especially in the case of cracking failure.The influence of inclusions on crack formation was found.The nature and cause of failure were verified by metallographic and chemi-cal composition analysis.The results show that the comprehensive diagnostic method effectively improves the reliability and operational efficiency of wind turbines,reduces maintenance costs,and has important significance for equipment management in the wind power industry.

关 键 词：双馈式风力发电机组齿轮箱 断齿 开裂 振动分析 失效分析 

分 类 号：TH17[机械工程—机械制造及自动化]