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Fan wind alignment optimization method and system based on vibration and inclination angle

An optimization method and technology for wind turbines, applied in the direction of engines, engine components, wind turbines, etc., can solve problems such as poor generalization performance of algorithms, inability to apply wind turbines, data collection deviations, etc., to enhance anti-interference ability, strong applicability, and data collection reliable results

Active Publication Date: 2021-05-28
青岛绿色发展研究院有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although in recent years, some practitioners and experts have studied various algorithms to correct the wind direction of wind turbines and verified the effectiveness of using the historical data of SCADA system to correct the wind direction, but due to the complexity of the operating environment of wind turbines, there are deviations in data collection. Moreover, the operating conditions of the wind turbines considered by the algorithm are relatively ideal, and the data used are not comprehensive, resulting in poor generalization performance of the algorithm and cannot be applied to every wind turbine.

Method used

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  • Fan wind alignment optimization method and system based on vibration and inclination angle
  • Fan wind alignment optimization method and system based on vibration and inclination angle

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Embodiment 1

[0031] Embodiment 1: see attached figure 1 , a wind optimization method based on vibration and inclination, including the following steps: S1 uses a dual-axis inclination sensor to monitor the inclination angle θ projected by the deflection of the fan tower on the x-axis and y-axis directions when the wind speed is stable, so as to judge the wind direction ;S2 uses a dual-axis vibration sensor to monitor the components of the vibration amplitude of the wind turbine tower projected on the x-axis and y-axis when the wind speed is unstable, so that the wind direction can be obtained according to vector synthesis; S3 feeds back the identified wind direction data to the wind turbine yaw system, the wind turbine yaw system makes a judgment, adjusts the position of the blades, and realizes the wind optimization of the wind turbine. Adjust the windward angle of the wind turbine head in time to ensure the zero yaw of the wind turbine head against the direction of the wind.

[0032] Th...

Embodiment 2

[0037] Embodiment 2: see attached figure 2, a wind optimization system based on vibration and inclination, including a data acquisition module 3, a wireless transmission module 4 and a communication module 5; the optimization system also includes a sensor group 2, which includes a tilt sensor and a vibration sensor , the tilt sensor and the vibration sensor are arranged on the top of the wind tower 1; the data acquisition module 3 is composed of a digital (A / D) converter 31 and a data memory 32, and the data acquisition module 3 collects the sensor group 2 The obtained physical signal is converted into an electrical signal that can be recognized by the computer, and the data is temporarily stored in the data memory 32; the wireless transmission module 4 adopts 433MHz wireless transmission technology, and the wireless transmission module 4 converts the data acquisition module 3 The acquired data is transmitted to the host computer 6 wirelessly, and the communication module 5 a...

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Abstract

The invention relates to a fan wind alignment optimization method and system based on vibration and an inclination angle. The optimization method comprises the following steps that S1, an inclination sensor is used to monitor the inclination angle theta of the projection of a deflecting fan tower cylinder in the x-axis or y-axis direction when the wind speed is stable, so as to judge the wind direction; S2, a vibration sensor is adopted to monitor components of the projection of the vibration amplitude of the fan tower cylinder in the x-axis direction and the y-axis direction when the wind speed is unstable, and therefore the wind direction can be obtained according to vector synthesis; and S3, the recognized wind direction data are fed back to a fan yaw system, the fan yaw system makes a judgment, the blade position is adjusted, and fan wind alignment optimization is achieved. The optimization system comprises a data acquisition module, a wireless transmission module and a communication module. The optimization system further comprises a sensor group, and the sensor group comprises the inclination sensor and the vibration sensor. According to the method and the system, the wind direction is identified and calibrated by using the vibration and inclination angle generated in the operation process of the fan tower cylinder, and the method and the system have the characteristics of low cost, high performance, high reliability and the like.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a method and system for wind optimization of a fan based on vibration and inclination. Background technique [0002] In the actual situation of wind turbine operation, the measurement of the wind direction in the yaw system is mainly done through the wind vane, which is easily affected by the environment and installation errors during the operation of the wind turbine, and its installation position is at the tail of the nacelle, which is inevitably affected by the wind vane. The turbulence of the flow makes it impossible to accurately measure the wind direction, resulting in the wind turbine yaw system being unable to accurately face the wind; and some wind farms are affected by problems such as frequent changes in wind direction, large wind direction changes, and turbulence in the wind field, making it more difficult to measure the wind . These objecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCF03D7/042F03D7/047F03D7/0204F05B2270/321F05B2270/334F05B2270/329Y02E10/72
Inventor 杨鑫向玲胡爱军苏浩
Owner 青岛绿色发展研究院有限公司
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