Safety monitoring system and method for wind turbine generator
A technology for safety monitoring and wind turbines, applied in the monitoring of wind turbines, wind turbines, motors, etc., and can solve problems such as hysteresis
Pending Publication Date: 2021-06-04
协合风电投资有限公司
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Problems solved by technology
[0003] The safety diagnosis of the connecting bolts of the existing unit mainly judges the safety state of the bolts through the monitoring of abnormal conditions such as the torque and fracture of the bolt itself, and further judges the safety state of the unit, and only when unsafe practice problems such as bolt breakage occur , can be diagnosed, there is a serious hysteresis
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
[0031] Such as Figure 1-4 As shown, a wind turbine safety monitoring system according to an embodiment of the present invention includes a hub monitoring unit installed on the hub, a collection unit installed in the nacelle, and a tower monitoring unit installed in the tower; The hub monitoring unit is provided with a signal transmission assembly, and the hub monitoring unit is respectively connected with a first sensor installed on the blade and a second sensor installed on the main shaft; ...
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The invention discloses a safety monitoring system and method for a wind turbine generator. The safety monitoring system comprises a hub monitoring unit installed on a hub, an acquisition unit installed in a cabin and a tower monitoring unit installed in a tower. Data measurement is carried out on a bolt on each connecting surface, accurate positioning is carried out, and the connecting surfaces are circular; a plurality of sensors are installed on the inner sides of the connecting surfaces, and the middle points of one sensor and the adjacent sensors on the two sides are marked as a point A and a point B respectively; the angle range between the point A and the point B is alpha; when the gap change of the connecting surfaces occurs at the point A or the point B, the value is a limit state value, the gap value measured by the sensor is delta, and the linear distance between the centers of the bolts is L; and the delta value is compared with the limit state value to judge the safety of the wind turbine generator. The high-precision displacement of the bolt connection plane gap is monitored, and the reliability of bolt connection is judged.
Description
technical field [0001] The present invention relates to the technical field of electric facility maintenance, in particular to a wind turbine safety monitoring system and method. Background technique [0002] The geographical environment of wind turbines is harsh, especially those located in mountainous wind farms, where the wind conditions are complex all year round, the wind direction is changeable, and the turbulence is large. The bolts at the root of the blades, the fatigue fractures of the main shaft and the hub bolts, and the tower method If the bolts are not found in time after the bolts are broken, the blades will fall, the hub will fall, and the tower will collapse due to the breakage of the tower bolts. [0003] The safety diagnosis of the connecting bolts of the existing unit mainly judges the safety status of the bolts through the monitoring of abnormal conditions such as the torque and fracture of the bolt itself, and further judges the safety status of the unit...
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Login to View More IPC IPC(8): F03D17/00
CPCF03D17/00
Inventor 张莹博姚志伟王飞舒业军訾恒陈辉
Owner 协合风电投资有限公司