風電齒輪箱快速更換工藝方案研究及應用
[Abstract]:In recent years, the wind power industry in China has been developed rapidly, and the installed capacity of wind turbines is increasing day by day. With the increase of operation time of wind turbine, the failure rate of wind turbine during its life is also increasing gradually. Gearbox is the core component of the main transmission chain of double-feed wind turbine. After its failure, due to the limitation of unit spatial structure and its own structure and other factors, the maintenance of gearbox is mainly to adopt the maintenance mode of the main transmission chain as a whole. This scheme has complex process, high technical level requirements for operators, and occupies a large number of maintenance equipment, and the maintenance cycle is long. As a result, enterprises are facing huge pressure on maintenance costs. In order to solve the above problems, this paper takes two kinds of dual-feed wind turbines, 1.5MW and 1.0MW, as the research object, and puts forward the process scheme of rapid replacement of gearbox based on the analysis of unit structure. Through theoretical calculation and practice, it is proved that the scheme is safe and reliable, the operation of process equipment is simple, it can meet the actual engineering needs, and at the same time effectively shorten the maintenance cycle of gearbox, which not only saves the maintenance cost of gearbox for manufacturers, but also recovers the loss of power generation caused by fault shutdown for wind power owners, which has good economic benefits. The process scheme design of rapid replacement of double-feed wind turbine gearbox is mainly based on the consideration of the safety of wind turbine system. Based on the establishment of 1.5MW unit model by GLBladed software, the safety of the process scheme is evaluated, and the influence of gearbox replacement on unit load is analyzed in detail. The strength check and simulation of the key components of the unit are carried out by ANSYS Workbench numerical simulation method. Finally, according to the load calculation results and the unit structure, the process equipment in the scheme is designed and manufactured. The above analysis conclusions can guide the process of gearbox replacement in the air and compile the process documents of gearbox replacement. This scheme has been successfully applied to the replacement operation of 1.5MW unit gearbox in a wind farm in Ningxia.
【學位授予單位】:寧夏大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TM315
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