Wind power blade wireless vibration monitoring device and method on basis of kinetic energy battery

A wind power blade and wireless vibration technology, applied in the field of wind power, can solve the problems of sensor aging, limited solar panel life, inability to detect damage, etc., and achieve the effect of small environmental interference

Inactive Publication Date: 2013-08-07
GUODIAN UNITED POWER TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The former needs to shut down the fan, and can only monitor the blades regularly, and cannot detect damage; while the latter is

Method used

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  • Wind power blade wireless vibration monitoring device and method on basis of kinetic energy battery
  • Wind power blade wireless vibration monitoring device and method on basis of kinetic energy battery
  • Wind power blade wireless vibration monitoring device and method on basis of kinetic energy battery

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[0031] See figure 1 As shown, the present invention discloses a wind power blade wireless vibration monitoring device based on a kinetic energy battery, which includes a sensor node 2 and a coordinator 1, which can be composed of multiple sensor nodes 2 and a coordinator 1 according to actual conditions. Among them, the sensor node 2 is located in the blade of the wind turbine, preferably arranged on the web of the blade cavity near the blade tip, and installed before the blade is manufactured. The coordinator 1 is installed inside the cabin, powered by the DC power supply in the cabin control cabinet, and communicates with each sensor node 2 wirelessly.

[0032] Please refer to image 3 , 4 The sensor node includes a kinetic energy battery module with a self-powered function, a sensor, a single-chip microcomputer, and a wireless communication module. The sensor is powered by the kinetic energy battery module, and is controlled by the single-chip microcomputer to collect the vibr...

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Abstract

The invention discloses a wind power blade wireless vibration monitoring device on the basis of a kinetic energy battery, which comprises a sensor node and a coordinator, wherein the sensor node is positioned in a blade of a wind generating set and the coordinator is positioned inside an engine room; the sensor node is connected with the coordinator by wireless communication and is used for acquiring a blade vibration signal according to a control signal of the coordinator and sending the vibration signal to the coordinator for processing; and the sensor node comprises a kinetic energy battery module with a self-powered function. The invention also discloses a monitoring method for the wind power blade wireless vibration monitoring device. According to the invention, the kinetic energy battery module is adopted to carry out self-powering, the sensor node does not need to be externally connected with a power line and the difficult problem of power supply is solved; meanwhile, monitoring on vibration of the blade is implemented by adopting a wireless sensor network and interference of rotating mechanical signal wired transmission is avoided; and moreover, the sensor node is arranged inside the blade, does not damage the surface of the blade, is interfered by the environment a little and can be free of maintenance and be used for a long time.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a kinetic energy battery-based wireless vibration monitoring device and method for wind power blades. Background technique [0002] Wind turbines are large-scale electrical equipment that convert wind energy into electrical energy. Blades are the main components for capturing wind energy and are subject to a wide range of load fluctuations during operation. During the long-term operation of wind turbines, the blades may be affected by icing, sandstorms or changes in their material properties, resulting in reduced wind capture capacity, power loss, and even blade breakage, resulting in huge economic losses. By monitoring the vibration state of the blade, the operating characteristics of the blade can be evaluated, and material damage or icing of the blade can be detected. [0003] At present, the vibration testing of wind turbine blades is limited to the space limitation insi...

Claims

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Application Information

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IPC IPC(8): G01H11/06G08C17/02
Inventor 于迟王千董礼
Owner GUODIAN UNITED POWER TECH
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