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Monitoring method and device for blade icing of wind driven generator

A technology of wind power generators and monitoring equipment, applied in the field of wind energy, can solve the problems of low reliability and accuracy, and achieve the effect of improving accuracy and reliability

Active Publication Date: 2018-12-14
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

However, the existing icing monitoring methods have problems of low reliability and accuracy.

Method used

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  • Monitoring method and device for blade icing of wind driven generator
  • Monitoring method and device for blade icing of wind driven generator
  • Monitoring method and device for blade icing of wind driven generator

Examples

Experimental program
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Embodiment Construction

[0019] Various example embodiments will now be described more fully with reference to the accompanying drawings.

[0020] figure 1 A flowchart showing a blade icing monitoring method of a wind power generator according to an embodiment of the present invention. figure 1 The blade icing monitoring method shown determines the icing state of the blade by detecting whether there is ice on the blade. When it is detected that there is ice on the blade, it is determined that the icing state of the blade is icing; when it is detected that there is no ice on the blade, it is determined that the icing state of the blade is not icing.

[0021] Such as figure 1 As shown, in step S10, information related to icing of the blade is obtained.

[0022] The icing-related information refers to information that can reflect whether there is ice on the blade. For example, the icing-related information may include one of blade image information, sensing information of a blade-type icing sensor, a...

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Abstract

The invention provides a monitoring method and device for blade icing of a wind driven generator. The monitoring method for blade icing includes the following steps: obtaining icing related information of blades, wherein the icing related information includes blade image information, and one of sensing information of a blade-type icing sensor and the sensing information of a cabin type icing sensor; determining a first icing state of the blades according to the obtained icing related information; selectively obtaining set working condition data of the wind driven generator based on the first icing state, and determining a second icing state of the blades by a wind speed power matching algorithm; and determining a final icing state of the blades based on the first icing state, or based on the first icing state and the second icing state. According to the monitoring method and device for blade icing of the wind driven generator of embodiments, the accuracy and reliability of the monitoring system are improved by integrating at least two monitoring methods to monitor the icing states of the blades.

Description

technical field [0001] The invention relates to the field of wind energy. More specifically, it relates to a method and device for monitoring blade icing of a wind power generator. Background technique [0002] Wind energy, as a clean renewable energy, has been paid more and more attention, and the installed capacity of wind energy equipment (ie, wind turbines) is also increasing. The wind turbine may be various devices driven by wind energy, for example, various devices driven by wind energy such as wind power generation equipment and windmills. [0003] With the continuous expansion of the construction scale of wind farms in cold climate areas, the problem of blade icing has become increasingly prominent. The blades of wind farms in plateau areas are more severely affected by freezing, and there are nearly two months of freezing each year. The operation of blades with ice will reduce the service life of blades, and may cause blade breakage in severe cases; at the same t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/40
CPCY02E10/72
Inventor 袁旭张峻川杨博宇
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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