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

Abstract

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.