CLEANLINESS CONTROL AND MANAGEMENT OF GEARBOX LUBRICATION SYSTEM IN WIND TURBINE GENERATOR

摘要

Wind turbine gearbox is one of the most expensive and critical component of the wind turbine generator system. Due to the extreme operating conditions encountered in the gearbox, there is little room for compromises, especially with the performance of the lubrication system. Gearbox lubricating fluid is one of the most important element of the system - it's like the blood of gearbox and performs key functions of maintaining proper lubricity and film thickness between the moving surfaces, heat absorption and its dissipation, suspension and transportation of the particulate debris, prevention of abrasion and corrosion, etc in the lubrication system. Therefore, the optimum cleanliness level and health of the lubricating fluid is essential for satisfactory performance and service life of the wind turbine gearbox. The paper discusses the cleanliness control and management of the gearbox lubrication system. Examples of filtration related issues experienced in the field are also discussed.