Analysis of the Wind Power Gear Oil During Operation
To monitor and evaluate the performance of domestically produced gear oil in use and the operating status of 8 megawatt-class wind turbines in a wind farm,indicators that affect the deterioration of gear oil and the lifespan of gear boxes,such as kinematic viscosity,moisture content,acid value,and metal element content,were detected.The changes in various indicators of in use gear oil during different operating periods were analyzed.The results show that during the 5-year operation period,the maximum viscosity change rate of each fan gear oil is 0.97%,and the minimum is 0.03%,with no significant deterioration observed,thus maintaining a stable oil film essential for ensuring the safe operation of gearboxes and wind turbines.The fluctuation and increasing trend of acid value are relatively small,indicating no significant oxidative deterioration of the oil and minimal impact on gearbox operational stability.No abnormal increases in iron and copper elements were detected,demonstrating that the oil maintained good extreme pressure and anti-wear properties.Moisture content is within the indicator range and has a relatively small impact on the performance of the wind turbine lubrication system.It is recommended to regularly monitor the moisture content of the gear oil to avoid excessive residual moisture and other impurities that may cause secondary pollution to the new oil,thereby extending the service life of the gearbox.Overall,the changes in key performance indicators of the domestically produced gear oil remained within normal ranges,indicating that this domestically produced gear oil meets the lubrication requirements of megawatt-class wind power equipment.(Charts5 Tables0 References3)
gear boxdomestically produced gear oilkinematic viscosityacid valuemoisture contentwear debris