Abstract: With applications of monitoring systems for wind turbine vibration conditions, mechanical drive vibration signals can be analyzed, but the monitoring methods are too unitary, in which the wind turbine overall conditions cannot be monitored. So a comprehensive monitoring method is proposed, in which other parameters can be monitored also, such as blade strain, oil wear particle, generator electrical parameters and wind turbine performance parameters. The overall condition online monitoring system of wind turbine generators is developed and the remote diagnosis centre is set up, by which the goal of the wind farms with few people or unattended can be reached.

Key words: wind turbine, fault, overall condition, remote diagnosis centre, few people unattended