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A Motor Temperature Monitoring Method Based on Statistical Process Control

A technology for statistical process control and motor temperature, applied to thermometers, thermometer applications, instruments, etc., can solve problems such as signal distortion, fluctuations, and noise

Active Publication Date: 2019-11-08
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, considering the accuracy of the instrument and some random factors, the signal may appear random changes such as distortion, fluctuation, and noise
Due to the existence of these random disturbance factors, some conventional process data methods may not be able to avoid false data identification due to random factors

Method used

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  • A Motor Temperature Monitoring Method Based on Statistical Process Control
  • A Motor Temperature Monitoring Method Based on Statistical Process Control
  • A Motor Temperature Monitoring Method Based on Statistical Process Control

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Embodiment Construction

[0061] 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 drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. On the contrary, the invention covers any alternatives, modifications, equivalent methods and schemes within the spirit and scope of the invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. The present invention can be fully understood by those skilled in the art without the description of these detailed parts.

[0062] The present invention will be further described below in conjunction with the accompanying drawings and ...

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Abstract

The invention provides a motor temperature monitoring method based on statistical process control. The method monitors the motor temperature by establishing an EWMA control diagram model: firstly, the steady state and unsteady state data of the motor are collected for a period of time and input into the model to calculate the EWMA control diagram The parameters in the model, and then input the process data of the motor into the EWMA control chart model to monitor the motor temperature process data to identify and monitor the drift of the motor temperature process. The present invention uses statistical theory to eliminate the interference of random factors and scientifically monitor and identify Motor temperature process data; using the control chart is more sensitive to the process drift, and can quickly and accurately identify the drift phenomenon of the motor temperature (that is, the temperature rise), further alarm prompts and make corresponding checks, and realize the motor temperature more reasonably. The first-level alarm and second-level alarm make the motor temperature protection more accurate, fast and scientific.

Description

technical field [0001] The invention belongs to the field of motor temperature control, and in particular relates to a motor temperature monitoring method based on statistical process control. Background technique [0002] Due to the thermal effect of the current, the motor will inevitably generate heat during operation, resulting in an increase in temperature. Under normal working conditions, the motor temperature will be within the allowable range. However, in some cases, when the temperature suddenly increases or exceeds the maximum operating temperature, it is an important signal of abnormal operation and failure of the motor. Therefore, it is of great significance for the safe, reliable and stable operation of the motor and the production system to correctly analyze the temperature rise or exceed the limit of the motor and deal with the abnormal or faulty motor in time. Most of the existing motor temperature monitoring and protection adopts the embedded thermal resist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K13/00G06F17/18
CPCG06F17/18G01K13/00
Inventor 王然风付翔董志勇
Owner TAIYUAN UNIV OF TECH
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