Online fault diagnosis system of wind turbine generator gear case

Abstract

The invention provides an online fault diagnosis system of a wind turbine generator gear case. The online fault diagnosis system of the wind turbine generator gear case comprises an oil analysis device, a vibration monitoring device and a fault diagnosis device. The oil analysis device is used for carrying out real-time online analysis on oil of the wind turbine generator gear case and sending oil analysis results to the fault diagnosis device according to detection signals sent by the fault diagnosis device. The vibration monitoring device is used for monitoring vibration conditions of the wind turbine generator gear case in real time and sending vibration data of the wind turbine generator gear case to the fault diagnosis device according to the detection signals. The fault diagnosis device is used for sending the detection signals to the oil analysis device and the vibration monitoring device periodically, carrying out contrastive analysis on the received oil analysis results and vibration data of the wind turbine generator gear case, and carrying out fault diagnosis on the wind turbine generator gear case according to contrastive analysis results. The online fault diagnosis system of the wind turbine generator gear case can carry out real-time online fault diagnosis on the inside and the outside of the gear case at the same time, has high fault diagnosis reliability, and improves possibility and feasibility of maintenance beforehand.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to an online fault diagnosis system for a gearbox of a wind turbine. Background technique [0002] In recent years, wind power technology has developed rapidly in the field of new energy. Due to the harsh operating environment of wind turbines, it is difficult to maintain the equipment when the turbine fails. Therefore, active maintenance of wind turbines should be strengthened at ordinary times to avoid difficulties caused by passive maintenance. The gearbox is one of the important components in the wind turbine. As we all know, the gearbox failure accounts for a large proportion of the mechanical failures of the entire wind turbine. It is a common fault, so the fault detection of the gearbox is extremely important. However, due to the characteristics of background noise and complex mechanism, it is currently difficult to effectively detect gearboxes, especially those of wind t...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an online fault diagnosis system for gearboxes of wind turbines, which is used to solve the problem of poor reliability of fault monitoring results in existing single gearbox fault analysis systems, and the problems of easy underreporting and misdiagnosis of gearbox faults

Images