关键词: 在线振动监测技术, 齿轮箱, 故障诊断, 风电机组, 频谱分析

Abstract: As the most economical and clean energy, wind power plays an increasingly important role in promoting the energy system to achieve green and low-carbon transformation, coping with climate change, and ensuring the security of energy supply. Gear box is one of the most important components in wind turbine, its failure will directly affect the normal operation and life of wind turbine. The application of on-line vibration monitoring technology in gearbox fault diagnosis of
wind turbine was studied. Through vibration monitoring technology, the data of gear box vibration acceleration signal was obtained, the frequency domain and time domain characteristics of the signal were analyzed, and the features related to gear box faults were extracted for fault type judgment and early warning, so as to provide reference for the subsequent on-site personnel on the gear box repair and maintenance.

Key words: online vibration monitoring technology, gearboxes, fault diagnosis, wind turbine, spectral analysis