A non-contact monitoring system and monitoring method for offshore fan blade faults

Abstract

The invention discloses a non-contact monitoring system and monitoring method for faults of offshore wind turbine blades. The system includes a meteorological information collection system arranged on the offshore wind turbine foundation, tower base or a separate platform, and a hydrological monitoring system arranged in the sea area near the offshore wind turbine. Information collection system, the aeroacoustic collection system arranged on the foundation or tower of offshore wind turbines, the data collected by the meteorological information collection system, hydrological information collection system and aeroacoustic collection system are transmitted to the collection node in real time, and then the collection node passes through the wireless terminal Transmission to the onshore data center, data center, monitoring system and monitoring equipment are connected and communicated through industrial Ethernet. The monitoring system disclosed by the invention does not need to destroy the original structure of the fan blade, and also facilitates the maintenance of the detection equipment. It can not only meet the monitoring requirements of the traditional monitoring room, but also has remote computers and handheld devices to facilitate on-site maintenance.

Description

technical field [0001] The invention belongs to the field of instruments and meters, and in particular relates to a non-contact monitoring system and a monitoring method for faults of offshore fan blades based on aeroacoustic signal characteristics in the field. Background technique [0002] Traditional energy cannot meet the sustainable development requirements of resources and environment. The ultimate source of wind energy resources is solar energy, which is inexhaustible and inexhaustible. Offshore wind power has become an important direction for the development of wind power technology. [0003] However, since offshore wind farms are generally built in the intertidal zone or offshore waters, the construction cost is high, and the complex marine environment increases the difficulty of operation and maintenance of offshore wind turbines. As a device for wind energy harvesting, the reliability of wind turbine blades directly affects the power generation quality and effici...

AI Technical Summary

Problems solved by technology

[0004] The sensors used in the existing online fault detection method for fan blades need to be pre-installed in the fan blades. On the one hand, this will have an adverse effect on the structure of the fan blades, reduce the strength of the blades, and increase the difficulty of manufacturing the blades; on the other hand, the prefabricated Once the type sensor fails, the maintenance cost is very high

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