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Electrical equipment abnormity diagnosis method and device based on load characteristics

A technology for diagnosis of electrical equipment and abnormalities, applied in the direction of measuring devices, electrical components, and measuring electronics

Pending Publication Date: 2022-04-05
上海尤比酷电气有限公司
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  • Description
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Problems solved by technology

[0002] The abnormality diagnosis of electrical equipment in the prior art is performed after the abnormality occurs in the equipment, and then the abnormality is checked through the external diagnostic equipment, and the abnormal situation cannot be notified immediately when the abnormality occurs

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  • Electrical equipment abnormity diagnosis method and device based on load characteristics
  • Electrical equipment abnormity diagnosis method and device based on load characteristics
  • Electrical equipment abnormity diagnosis method and device based on load characteristics

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Embodiment Construction

[0048] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the disclosed embodiments, all other embodiments obtained by persons of ordinary skill in the art without creative efforts also fall within the protection scope of the present invention.

[0049] As indicated in this application and claims, the terms "a", "an", "an" and / or "the" do not refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also contain other steps or elements. The technologies, methods and devices known to tho...

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Abstract

The invention relates to an electrical equipment abnormity diagnosis method and device based on load characteristics, and the method comprises the steps: S1, carrying out the data sensing according to a U-X characteristic curve, generating an equipment calibration table and a sample statistical table, and carrying out the initialization of each; s2, if the electrical equipment is in a stable operation state, executing the next step; s3, recording the sample data and updating a sample statistical table; s4, judging whether U and X values in the recorded sample data meet limiting conditions in the equipment calibration table or not, and if yes, subtracting 1 from the count M of the characteristic abnormity counter; and if the condition is not met, adding 1 to the count M, and if the value of the count M exceeds a set allowable value Mmax, sending out a characteristic abnormity mark. The electrical equipment abnormity diagnosis method and the electrical equipment abnormity diagnosis device have the advantages that real-time online detection can be achieved, abnormity can be recognized in time, and recognition is accurate.

Description

technical field [0001] The invention relates to a technology for identifying abnormal working conditions of electrical equipment, in particular to a method and device for diagnosing abnormal electrical equipment based on load characteristics. Background technique [0002] The abnormal diagnosis of electrical equipment in the prior art is performed after an abnormality occurs in the equipment, and then the abnormality is checked through an external diagnostic device, and the abnormal situation cannot be notified immediately when the abnormality occurs. [0003] In the power supply system, there are many electrical devices that have a definite U-I (voltage-current) characteristic curve or a definite U-P (voltage-power) characteristic curve, and some devices have both definite U-I and U-P characteristic curves. These devices are within their allowable supply voltage range, although the current value flowing through the device or the power value consumed by the device fluctuates...

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Application Information

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IPC IPC(8): G01R31/00H04L12/02H04L67/12
Inventor 胡大良王曼朱一锋张卫红蒋书军宋天时
Owner 上海尤比酷电气有限公司
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