Fan Shaft Fault Diagnosis and Condition Monitoring System Based on Optical Signal
A condition monitoring system and fault diagnosis technology, applied in the direction of machine gear/transmission mechanism testing, etc., can solve problems such as lack of monitoring facilities and diagnostic methods, and achieve fast and effective monitoring, fewer components, and simple methods.
Inactive Publication Date: 2017-10-27
SHANGHAI DIANJI UNIV
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Problems solved by technology
In the fault diagnosis and condition monitoring of the transmission system of wind turbines, most of the existing technologies are aimed at gearboxes, but few involve the fault diagnosis and condition monitoring of the shafting of wind turbines, and the main shaft and coupling are extremely critical parts of the wind turbine. Lack of corresponding monitoring facilities and diagnostic methods
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[0017] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0018] like figure 1 As shown, the present invention provides a fault diagnosis and condition monitoring system for a fan shaft system based on an optical signal, including:
[0019] Optical signal transmitter 1 installed on the main drive shaft and coupling shaft of the fan respectively;
[0020] The signal collection board 2 installed on the main drive shaft of the fan and the side of the nacelle on the coupling, the signal collection board is parallel to the main drive shaft or coupling where it is located, and is used for the signal transmitter to follow the main drive when the wind turbine is running. When the shaft or coupling rotates together and rotates to the projection surface on one side of the signal collection boar...
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The present invention provides a fan shaft fault diagnosis and status monitoring system based on optical signals. The present invention focuses on the safe and stable operation of the shaft system, uses sensors based on optical signals to collect position information of the fan shaft system, and selects reasonable optical signals The transmitter and the optical signal acquisition board detect the running status of the wind turbine shaft system, and transmit the signal to the control system at the first time, so that the wind turbine unit can avoid the influence of the shaft system failure. The invention uses a sensor based on an optical signal to collect the position information of the fan shaft, accurately analyzes the cause of the failure, the degree of failure and the point of failure through the display of specific position information, accurately grasps the operating status of the fan shaft, and ensures that the wind power connected to the shaft Safe and stable operation of other important components of the unit.
Description
technical field [0001] The invention relates to fault diagnosis and state monitoring of main components of a fan drive system, in particular to a fan shaft state monitoring system based on optical signals. Background technique [0002] The prior art is mainly aimed at fault diagnosis and condition monitoring of wind turbine gearboxes, wind turbines (blades) of wind turbines and generators. In recent years, there have been many researches on fault diagnosis and condition monitoring of yaw system, pitch system, electrical system, hydraulic system and control system at home and abroad. In the fault diagnosis and condition monitoring of the wind turbine transmission system, most of the existing technologies are aimed at the gearbox, and there are few research results on the shaft system (main shaft or coupling). Shafting is a vital component in wind turbines, and it has an impact on the entire wind turbine. If the main shaft wears or fails, it will not only affect the normal o...
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IPC IPC(8): G01M13/02
Inventor 程申高桂革曾宪文
Owner SHANGHAI DIANJI UNIV