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Wind power generation acceleration sensing system

A technology of acceleration sensing and wind turbines, which is applied in wind turbine components, wind power generation, wind engines, etc., can solve the problems of heavy weight, expensive power loss, and costly, and achieve the effect of prolonging life

Inactive Publication Date: 2008-06-11
苏州市南极风能源设备有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] Power generation is one of the important needs in today's world. Whether the generator set can work normally is the main concern. For wind turbines, the failure of the main bearings, gearboxes and generators is unacceptable. The replacement of these components will be very important. Expensive and heavy, the installation site is 50-100 meters in the air, a wind turbine and a low-speed motor-driven fan, such as a cooling tower, have a lot in common, a wind turbine is basically a large low-speed fan, but it It is not driven by electric energy. It does not drive mechanical energy through the gearbox to drive a large low-speed fan. On the contrary, it provides mechanical energy and drives the generator through the gearbox to generate electrical energy. This reverse process has many rotating parts that will generate vibration, and long-term loss Can lead to eventual failure, very expensive to repair, impossible operating heights, loss of electrical power is expensive

Method used

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Embodiment Construction

[0007] The speed of the main bearing and the shaft is about 30-60rpm, which is also the rotation speed of the gearbox input shaft. If the rotation frequency range is 30-60cpm (0.5-1.0Hz), a low-frequency acceleration vibration sensor should be used, and the measurement range includes the rotation of the main shaft. Frequency, blade passing frequency, main bearing frequency, gearbox input shaft bearing frequency and gear meshing frequency etc. These low frequency accelerometers typically offer a frequency range of 500mV / g and 12-180000cpm (0.2-3000Hz).

[0008] Both the intermediate shaft and the output shaft of the gearbox will have a relatively high rotational speed and generate a higher disturbance frequency than the bearing and gear meshing. In fact, the rotational frequency of the output shaft is usually 50-60 times higher than that of the input shaft. Measuring the high rotation speed of the gear box and generator set driven by it requires the use of a general-purpose acc...

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Abstract

The invention provides a method for the sensing of acceleration in wind power generation, which comprises a generator and a sensor. A permanent acceleration vibration sensor is positioned on a wind power generator unit for permanent monitoring; once abnormal condition occurs, the damaged parts can be repaired as soon as possible to reduce the loss to the minimum. The permanent acceleration vibration sensor positioned on the wind power generator unit is able to detect the gear failure, gear wearing, vibration of blade wheel, electronic failure, imbalance, misalignment, loosing and resonance, thereby effectively prolonging the service life of the invention.

Description

technical field [0001] The invention relates to a method for sensing acceleration of power generation, in particular to a method for sensing acceleration of wind power generation. Background technique [0002] Power generation is one of the important needs in today's world. Whether the generator set can work normally is the main concern. For wind turbines, the failure of the main bearings, gearboxes and generators is unacceptable. The replacement of these components will be very important. Expensive and heavy, the installation site is 50-100 meters in the air, a wind turbine and a low-speed motor-driven fan, such as a cooling tower, have a lot in common, a wind turbine is basically a large low-speed fan, but it It is not driven by electric energy. It does not drive mechanical energy through the gearbox to drive a large low-speed fan. On the contrary, it provides mechanical energy and drives the generator through the gearbox to generate electrical energy. This reverse process...

Claims

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Application Information

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IPC IPC(8): F03D11/00F03D17/00
CPCY02E10/722
Inventor 朱以人吴纯远
Owner 苏州市南极风能源设备有限公司
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