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Threshold value determining method and system and readable storage medium

A determination method and threshold technology, applied in the field of threshold determination methods, systems and readable storage media, can solve problems such as inaccurate fault monitoring, and achieve accurate fault monitoring and accurate alarm thresholds

Pending Publication Date: 2022-01-04
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method of identifying fan faults based on manual experience is affected by factors such as the experience of technicians, and fault monitoring is inaccurate

Method used

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  • Threshold value determining method and system and readable storage medium
  • Threshold value determining method and system and readable storage medium
  • Threshold value determining method and system and readable storage medium

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Embodiment Construction

[0018] Exemplary embodiments will be described in detail herein, and examples are illustrated in the drawings. The following description when referring to the drawings, unless otherwise indicated, the same reference numbers in the plurality of the same or similar elements. EXAMPLES The following exemplary embodiments do not represent all the described embodiments consistent with the present embodiment description with one or more embodiments. Instead, it is only an example of apparatus and method that consistent with some aspects of one or more embodiments of the present specification, as detailed in the appended claims.

[0019] It should be noted that the steps of the corresponding method are not necessarily shown and described in the other embodiments. In some other embodiments, the steps of its method can be more or less than those described in this specification. Further, the individual steps described in this specification may be decomposed into a plurality of steps in other...

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Abstract

The invention provides a threshold value determining method and system of a draught fan and a readable storage medium. The threshold value determination method comprises the following steps of: determining normal time domain signals of a target component according to normal vibration data of the target component at a plurality of sampling time points in a normal operation state; according to the fault signals and the normal time domain signals of the target component under the plurality of degradation degrees, respectively determining degradation time domain signals of the target component under the plurality of degradation degrees; and according to the degradation time domain signals and the threshold range of the target component under the plurality of degradation degrees, determining an alarm threshold when the target component fails. With the method adopted, the accurate alarm threshold value for fault monitoring can be determined.

Description

Technical field [0001] The present invention relates to a wind power, and more particularly relates to methods to identify a threshold value, and a system-readable storage medium. Background technique [0002] Some techniques, ways to monitor the operational status of the fan are: wind farm CMS (ConditionMonitoring System, Condition Monitoring System) fault analysis platform during fan operation, the data collection operation of the fan, and the fan runs fast data Fourier transform, the corresponding spectrogram display. Wind farm according to art vibration characteristics identify the fault spectrum, so that the fault inferred member. This failure to recognize the fan experience of the artificial method, influence by experienced technical personnel and other factors, fault monitoring is not accurate. Inventive content [0003] The present application provides a threshold determination method, and system-readable storage medium, can be determined for more accurate monitoring of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/045
CPCG01M13/045
Inventor 郭亚勤成骁彬
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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