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Blade deicing control method and device and deicing system for wind driven generator

A technology of wind power generator and control method, which is applied in the field of deicing system and blade deicing control, and can solve the problems of large heating energy loss and poor deicing effect

Inactive Publication Date: 2018-03-09
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Problems solved by technology

[0004] The invention provides a blade deicing control method, device and deicing system of a wind power generator to solve the problems of excessive heating energy loss and poor deicing effect in the prior art

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  • Blade deicing control method and device and deicing system for wind driven generator
  • Blade deicing control method and device and deicing system for wind driven generator

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Embodiment Construction

[0126] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0127] The invention provides a blade deicing control method of a wind power generator to solve the problems of excessive heating energy loss and poor deicing effect in the prior art.

[0128] Specifically, the blade deicing control method of the wind power generator, such as figure 1 As shown, the control method includes the following steps.

[0129] S101: Determine whether the blade is frozen.

[0130] The specific manner may include judging the received corresponding information (such as icing or not icing), or analyzing the received icing detection data before making the judgment, which is not specifically limited here.

[0131] If it is judged that the blade is icy, step S102 is performed to calculate the currently received refe...

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Abstract

The invention provides a blade deicing control method and device and deicing system for a wind driven generator. The blade deicing control method comprises the steps that firstly, when it is judged that blades are iced, a currently-received reference signal and multiple local state signals of all local areas of all the blades are calculated, and first calculation results are obtained; secondly, the iced positions are determined, and determination of the specific iced positions is achieved; thirdly, deicing equipment is controlled to deice the iced positions, and the problem that the heating energy loss is high due to the fact that in the prior art, the blades are heated together as a whole is avoided; and lastly, second calculation results are obtained by calculating the currently-receivedreference signal, multiple local state signals of the iced positions and multiple local state signals of the iced positions within the cached preset time, and the deicing equipment is controlled to stop deicing till the calculated second calculation results meet first preset conditions. Therefore, monitoring on the deicing process is achieved, and the overheat condition is avoided while the gooddeicing effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a blade deicing control method, device and deicing system of a wind power generator. Background technique [0002] In the field of wind power generation in our country, the Three North (Northeast, Northwest, North China) and plateau regions with high-quality wind resources are distributed, under the influence of low winter temperature and high humidity, the blades of wind turbines often freeze; Moreover, some wind fields in the south also experience blade icing from time to time. Icing blades is very harmful to wind turbines. It not only changes the aerodynamic characteristics of the blades, reduces the wind-catching ability, and affects the power generation; secondly, it is easy to cause overload and shorten the service life of components; cause operational accidents. [0003] The current prior art generally heats the blade as a whole uniformly. However, due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/40
CPCY02E10/72
Inventor 程庆阳乔志强杨建军袁旭
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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