State monitoring method and device for wind generating set

A technology of wind turbines and status, which is applied in the monitoring of wind turbines, wind turbines, engines, etc. It can solve problems such as problems with sensor measurement objects, and achieve the effect of monitoring abnormal states

Active Publication Date: 2017-05-10
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Problems solved by technology

Because the measurement object of the sensor itself is an unknown quantity, it is difficult to judge whether th...

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  • State monitoring method and device for wind generating set
  • State monitoring method and device for wind generating set
  • State monitoring method and device for wind generating set

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention ma...

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Abstract

The invention discloses a state monitoring method and device for a wind generating set. The method comprises the steps that a sensor mounted on the wind generating set is utilized for measuring the actual values of n characteristic quantities of the wind generating set, wherein n is an integer larger than 0; based on a virtual standard control system of the wind generating set and a virtual sensor system of the sensor mounted on the wind generating set, the theoretical values of the n characteristic quantities are calculated according to current wind condition data; when the correlation coefficient between the actual value and the theoretical value of each of the n characteristic quantities is larger than a first threshold value, it is judged that the wind generating set has no anomaly.

Description

technical field [0001] The present invention relates to the technical field of wind power generation, and in particular to a state monitoring method and device for a wind power generating set. Background technique [0002] With the expansion of the scale of operation of wind turbines and the increase of operating time, mechanical failures of equipment tend to become normal. In order to monitor the condition of the wind power generating set and maintain it in a planned way, it is necessary to install corresponding sensors in multiple positions of the wind generating set. [0003] At present, there are not many methods for monitoring the state of sensors, mainly relying on the measurement data of other sensors to evaluate the state of the target sensor, and there is no method to judge the state of the sensor itself through the measurement data of the sensor itself. Because the measurement object of the sensor itself is an unknown quantity, it is difficult to judge whether the...

Claims

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Application Information

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IPC IPC(8): F03D17/00
CPCF05B2260/80
Inventor 乔志强王百方程庆阳
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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