Device, method and system for measuring azimuth angle of impeller of wind generating set

Abstract

The embodiment of the invention provides a device, method and system for measuring the azimuth angle of an impeller of a wind generating set. The measuring device comprises a positioning device and an angle sensor, the positioning device is arranged on the windward side or the leeward side of a hub of the wind generating set, the angle sensor is arranged on the mounting surface of the positioning device and is used for outputting a measurement signal in the process of rotating along with the hub, the measurement signal is used for calculating the azimuth angle of the impeller, and the mounting surface of the positioning device is parallel to the rotation plane of the wind generating set. The determination method comprises the following steps: acquiring a current measurement value of the measurement signal; and determining a current first impeller azimuth angle of a first blade according to the current measurement value and a preset first measurement value, wherein the first measurement value is a measurement value corresponding to the measurement signal when the first blade is in a vertically upward state. The device, the method and the system are used for solving the technical problem of inaccurate impeller azimuth angle measurement in the prior art.

Description

technical field

[0001] The embodiments of the present application relate to the technical field of wind power generation, and in particular to a device, method and system for measuring the azimuth angle of an impeller of a wind power generating set. Background technique

[0002] At present, wind power generators have higher and higher requirements for the measurement accuracy of the azimuth angle of the impeller, especially the absolute position of the three blades of the impeller needs to be accurately positioned.

[0003] At present, the azimuth angle measurement of the impeller is based on the rotary encoder and the configuration of the proximity switch to measure the azimuth angle of the impeller. When the proximity switch measures the azimuth of the impeller, there will be a jump in the value and high installation process requirements, which will cause the problem of inaccurate measurement; moreover, the structure of the rotary encoder itself is relatively complicated, ...

Examples

Embodiment Construction

[0070] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.

[0071] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with their meaning in the context of the prior art, and unless specifically defined as herein, are not intended to be id...

technical field

[0001] The embodiments of the present application relate to the technical field of wind power generation, and in particular to a device, method and system for measuring the azimuth angle of an impeller of a wind power generating set. Background technique

[0002] At present, wind power generators have higher and higher requirements for the measurement accuracy of the azimuth angle of the impeller, especially the absolute position of the three blades of the impeller needs to be accurately positioned.

[0003] At present, the azimuth angle measurement of the impeller is based on the rotary encoder and the configuration of the proximity switch to measure the azimuth angle of the impeller. When the proximity switch measures the azimuth of the impeller, there will be a jump in the value and high installation process requirements, which will cause the problem of inaccurate measurement; moreover, the structure of the rotary encoder itself is relatively complicated, ...

Examples

Embodiment Construction

[0070] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.

[0071] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with their meaning in the context of the prior art, and unless specifically defined as herein, are not intended to be id...

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