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Wind power generator paddle lightning wire breakage testing system and method

A technology of wind power generator and test system, which is applied in the direction of wind power generator, wind power generator monitoring, wind power generation, etc., and can solve the problems of low efficiency, huge labor and mechanical usage costs, etc.

Pending Publication Date: 2020-07-07
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is very inefficient, and testing a fan will result in huge labor and mechanical costs due to the use of professional auxiliary equipment.

Method used

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  • Wind power generator paddle lightning wire breakage testing system and method
  • Wind power generator paddle lightning wire breakage testing system and method
  • Wind power generator paddle lightning wire breakage testing system and method

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0045] Specific implementation mode one: refer to Figure 1-Figure 9 Describe this embodiment, a wind power generator blade lightning protection wire breakage testing system in this embodiment, including a blade 1 and a lightning protection wire 2 arranged in the blade, the lightning protection wire 2 is glued to the inner wall of the blade 1, The lightning protection wire 2 is arranged from the blade tip of the blade 1 to the blade root of the blade 1, and the lightning protection wire 2 at the blade root of the blade 1 is loaded with a pulse signal generating device 3, and the lightning protection wire 2 is covered with a sensor 4, The sensor 4 establishes a signal transmission connection with the computer 6 through the signal conditioning circuit 5 , and the computer 6 controls the pulse signal generator 3 to send out a pulse signal and load it on the lightning conductor 2 .

[0046] Such as figure 1 As shown, the lightning protection wire in the wind turbine blade is laid...

specific Embodiment approach 2

[0057] Specific implementation mode two: refer to Figure 1-Figure 9 This embodiment will be described. In this embodiment, a wind turbine blade lightning conductor breakage testing system, the sensor 4 is a Rogowski coil current sensor. The Rogowski coil current sensor coil has a certain number of turns. When the current in the wire changes, an induced potential will be generated in the sensor. The Rogowski coil is suitable for the measurement of alternating current in a wide frequency range, and has no influence on the conductor and size. Special requirements, the application of the Rogowski current sensor in the measurement of lightning wire breakage has a faster instantaneous response capability.

specific Embodiment approach 3

[0058] Specific implementation mode three: refer to Figure 1-Figure 9 , in combination with specific implementations 1 and 2, this implementation is described. In this implementation, a wind turbine blade lightning protection wire breakage testing system, the sensor 4 uses a Rogowski coil with 16 turns, and the pulse signal adopts The pulse signal source module sends out a square wave signal with a frequency of 500KHz and a peak-to-peak value of 10V, such as figure 1 As shown, the sensor signal enters the conditioning amplifier module to adjust the signal amplitude to ±5V. The response speed of the conditioning amplifier module is 7ns. The signal after conditioning enters the high-speed acquisition card, and the acquisition card obtains the traveling wave in the lightning protection line. Signal, the high-speed data acquisition card has a sampling speed of 2.5GSPS and a bandwidth of 1.5GHz. As mentioned above, the signal wires are all shielded wires, and the connection method...

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Abstract

The invention discloses a wind power generator paddle lightning wire breakage testing system and method, and belongs to the field of wind power generator set lightning wire breakage detection. The wind power generator paddle lightning wire breakage testing system comprises a paddle and a lightning wire arranged in the paddle. The lightning wire is in glue connection to the inner wall of the paddle. The lightning wire is arranged to the paddle root position of the paddle from the paddle tip position of the paddle. The part, located at the paddle root position of the paddle, of the lightning wire is loaded with a pulse signal generation device. The lightning wire is sleeved with a sensor. Signal transmission connection is established between the sensor and a computer through a signal conditioning circuit. The computer controls the pulse signal generation device to send out pulse signals loaded to the lightning wire. The wind power generator paddle lightning wire breakage testing system and method have obvious advantages that testing is convenient, and the wire breakage position is tested; and the wind power generator paddle lightning wire breakage testing system and method are suitable for usage and popularization.

Description

technical field [0001] The invention relates to a breakage testing system and a detection method of a wind power generator blade lightning protection wire, and belongs to the field of detection of a wind power generation set lightning protection wire breakage. Background technique [0002] If the wind turbine is struck by lightning during normal power generation operation, it will cause partial failure of the mechanical system or electrical system. In severe cases, it will cause serious accidents such as blade bursting and fire, and lead to a long shutdown, resulting in a large loss of power generation. Moreover, the cost of wind turbines is high. If they are struck by lightning, especially for valuable components such as blades and generators, in addition to the loss of power generation during the repair period, they will also have to bear the huge transportation and hoisting costs of disassembly and replacement of damaged components. [0003] There are three ways of lightn...

Claims

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Application Information

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IPC IPC(8): F03D17/00F03D80/30
CPCF03D17/00F03D80/30Y02E10/72
Inventor 任晓颖张飞王金明
Owner INNER MONGOLIA UNIV OF SCI & TECH
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