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Fiber Bragg grating type wind farm wind velocity long-range detector

A fiber grating and remote detection technology, which is applied in fluid velocity measurement, velocity/acceleration/impact measurement, instruments, etc., can solve the problems of needing power supply, fear of lightning strikes, and difficulty in forming a sensor network with multi-point sensors

Active Publication Date: 2010-09-15
山东山科光电技术与装备研究院有限公司
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Problems solved by technology

[0013] The main purpose of the present invention is to solve the problems that the existing electronic products need power supply when monitoring the wind speed of the wind farm, need multi-level relay stations to carry out remote monitoring, are afraid of lightning strikes and electromagnetic interference, and are not easy to form a sensor network with multi-point sensors. The design scheme makes the remote wind speed detection more reliable, and makes it easier for multiple sensors to build a sensor network through wavelength division multiplexing

Method used

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  • Fiber Bragg grating type wind farm wind velocity long-range detector
  • Fiber Bragg grating type wind farm wind velocity long-range detector
  • Fiber Bragg grating type wind farm wind velocity long-range detector

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Embodiment Construction

[0024] Such as figure 1 As shown, the light emitted by the light source reaches the probe installed at the wind field site through the fiber coupler and a section of fiber optic cable. The tuner converts the optical signal into an electrical signal, and the computer performs signal analysis to demodulate and analyze the wind speed information. The output signal of the wind speed information provides support for other functions such as automatic control. In addition, the wind speed information will also be stored in the database, and the computer and the database exchange data. , forming functions such as historical query.

[0025] The schematic diagram of the fiber grating type wind speed remote detector probe is as follows figure 2 shown. In the case of wind, the wind cup 1 is blown and rotated, and the greater the wind speed, the faster the speed; the rotation of the wind cup 1 drives the rotating shaft 6 to rotate, and the rotating shaft 6 is fixed by two upper and lowe...

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Abstract

The invention relates to a fiber Bragg grating type wind farm wind velocity long-range detector which comprises a rotating shaft fixedly provided with a wind cup and is characterized in that a cam is arranged on the rotating shaft, a fixed seat is arranged on one side of the rotating shaft, a spring piece is arranged on the fixed seat, the top part of the spring piece is in contact with a rim of the cam, and a fiber Bragg grating is longitudinally fixedly arranged on the spring piece; the fiber Bragg grating is connected with an optical fiber coupler through an optical cable, and the optical fiber coupler is respectively connected with an optical fiber light source and a fiber Bragg grating demodulator; and the fiber Bragg grating demodulator is connected with a computer. The fiber Bragg grating type wind farm wind velocity long-range detector is mainly used for manufacturing the wind velocity detector.

Description

technical field [0001] The patent of the present invention relates to a wind speed detection device, in particular to a remote wind speed on-line detection system implemented using fiber grating technology. Background technique [0002] Energy and environmental issues have become the main issues faced by the global sustainable development, which has increasingly attracted the attention of the international community and sought positive countermeasures. Wind energy is a renewable, non-polluting, green energy that is inexhaustible and has abundant reserves. It is estimated that the total amount of wind energy available globally is 53,000TW·h / year. The large-scale development and utilization of wind energy will effectively reduce the use of petrochemical energy, reduce greenhouse gas emissions, and protect the environment. Vigorously developing wind energy has become an important choice for governments of all countries. [0003] Before building a wind farm, it is necessary t...

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Application Information

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IPC IPC(8): G01P5/26
Inventor 倪家升王昌赵维崧于光义赵燕杰王黔
Owner 山东山科光电技术与装备研究院有限公司
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