Fault diagnosis of wind turbine´s converter based with SOM net

Nowadays, most provinces of China like Xinjiang, Gansu, Ningxia, Inner Mongolia, Zhejiang, Heilongjiang, Jiangsu, Guangdong are constructing windfarms on a large scale. After all these windfarms are completed, the maintenance of them is very commercially valuable. Therefore, a fault diagnosis system of wind turbine´s converter is studied in this paper on the basis of Xinjiang´s windfarm. Firstly, the structure of wind turbine and converter are introduced, and the reasons of converter´s faults are analysed in this paper. SOM net was used to diagnose wind turbine converter´s fault and it´s effect was verified by using data. This paper combine traditional fault diagnosis technology of power electronics´ device with the fault diagnosis technology of xinjiang wind turbine´s converter in a creative way, and it can have some active effect on using wind power largely.