Motor abnormal state monitoring method and system

An abnormal state and state technology, which is applied in the direction of motor generator testing, measuring electricity, and measuring devices, can solve problems such as the inability to predict the future development trend of equipment and the inability to manage equipment health status, and achieve the effect of improving efficiency and accuracy

Pending Publication Date: 2021-06-22
CHINA TOBACCO HENAN IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the traditional technical solution focuses on the current state of the equipment, and cannot predic

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  • Motor abnormal state monitoring method and system
  • Motor abnormal state monitoring method and system

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Embodiment Construction

[0040] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is illustrative only, and in no way restricts the disclosure, its application or uses. The present disclosure can be implemented in many different forms and is not limited to the embodiments described here. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as illustrative only and not as limiting, unless specifically stated otherwise.

[0041] "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distin...

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Abstract

The invention discloses a motor abnormal state monitoring method and system. The method comprises the following steps: determining a matching working condition matched with a current working condition of the motor in a steady-state working condition list; determining a working condition abnormity judgment model corresponding to the matched working condition as a matched working condition abnormity judgment model in a plurality of pre-constructed working condition abnormity judgment models corresponding to a plurality of combined working conditions in the stable working condition list; and obtaining a motor state monitoring result based on the matching working condition and the matching working condition abnormity judgment model. According to the method for monitoring the abnormal state of the motor, the motor state monitoring result is obtained based on the matching working condition and the matching working condition abnormity judgment model corresponding to the matching working condition, the current working condition of the motor can be analyzed by utilizing the matching working condition abnormity judgment model, and the motor state monitoring result is automatically and directly obtained; the defect that whether the motor is in the abnormal state is difficult to effectively judge in the prior art is overcome, and the efficiency and accuracy of monitoring the abnormal state of the motor are improved.

Description

technical field [0001] The invention relates to the technical field of motor diagnosis, in particular to a method and system for monitoring abnormal states of motors. Background technique [0002] Motor state monitoring and fault diagnosis technology is a technology to understand and master the state of the motor during use, determine its overall or partial normal or abnormal, and find faults and their causes. The existing technical solutions are generally state monitoring and diagnostic devices based on electrical characteristic analysis technology. By measuring the current and voltage signals when the motor is running under load, and analyzing the characteristics of frequency spectrum, harmonics, and electrical parameters, it is possible to further detect bearing faults and misalignment. Faults, load faults, mechanical looseness, insulation and a series of electrical and mechanical fault status changes, and then determine the fault of the entire transmission system. [00...

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Application Information

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IPC IPC(8): G01R31/34
CPCG01R31/343
Inventor 李明伟张伟峰许佩毛爱龙许强栗勇伟张柳枝董云成晁红杰周亚丽吴军伟张培华姜克森罗华丽步文泽郑朋飞
Owner CHINA TOBACCO HENAN IND
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