Method for asynchronous motor parameter and fault information mapping process

An asynchronous motor and fault information technology, which is applied in the field of asynchronous motor parameter and fault information mapping process, and can solve problems such as motor existing problems and inability to make judgments.

Active Publication Date: 2020-07-31
西安亚思工业自动化控制有限公司
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Problems solved by technology

However, since this method only performs threshold shutdown processing, there are problems with the motor, but it is impossible to make a judgment before the severity of the shutdown is met.

Method used

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  • Method for asynchronous motor parameter and fault information mapping process

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying embodiments. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] see figure 2 , a method for asynchronous motor parameters and fault information mapping process, including real-time data time domain preprocessing process, specifically includes the following steps:

[0031] Step 1. Use the collected three-phase voltage U an , U bn , U cn and three-phase current time series data I an , I bn , I cn , to obtain the respective phases of the three-phase currents, that is, to use the minimum mea...

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Abstract

The invention relates to the technical field of electrical equipment detection and diagnosis, and particularly relates to method for asynchronous motor parameter and fault information mapping process.The method comprises the following steps: extracting a mapping relationship between asynchronous motor time axis voltage, random uncertainty of load in current signals and fault characterization characteristic parameters when multi-harmonic parameters are introduced into power supply dynamic adjustment based on static and dynamic mathematical models; proposing the relation between the distortionquantity in the time domain and the harmonic quantity in the frequency domain and the fault information is provided; and establishing an asynchronous motor operation process data mapping model capableof distinguishing motor body parameters, loads, power supply changes, fault parameters and fault conditions.

Description

technical field [0001] The patent of the present invention relates to the technical field of detection and diagnosis of electrical equipment, in particular to a method for the mapping process of asynchronous motor parameters and fault information. Background technique [0002] With the improvement of people's quality of life, some repeatable and cumbersome work processes will be replaced by real-time detection and self-diagnosis equipment. As a widely used and indispensable bottom-level motion actuator in industrial production, the degree of intelligence of the motor also directly reflects and affects the development process of industrial intelligence. At present, our country considers the problems of high shutdown cost, long maintenance cycle and large influence for high-voltage large-scale motors. Some temperature and vibration sensors are preset and pre-buried inside the motor when it leaves the factory. Changes in parameters to predict the operating conditions of the mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34
CPCG01R31/343
Inventor 高雅李波朱秦岭
Owner 西安亚思工业自动化控制有限公司
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