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Method for predicting residual life of dynamic filtering compensator

A technology of life prediction and dynamic filtering, which is applied in reactive power compensation, testing material strength by applying repetitive force/pulsation force, harmonic reduction device, etc., can solve the problems of low prediction efficiency and prediction accuracy, and achieve good prediction efficiency and The effect of prediction accuracy, convenient operation and low cost

Active Publication Date: 2021-06-01
东冶及策河北能源技术有限公司
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Problems solved by technology

However, it is found in practice that the prediction efficiency and prediction accuracy of the remaining life prediction method of the dynamic filter compensator in the prior art are low

Method used

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  • Method for predicting residual life of dynamic filtering compensator
  • Method for predicting residual life of dynamic filtering compensator
  • Method for predicting residual life of dynamic filtering compensator

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0019] Such as figure 1 As shown, the embodiment of the present invention provides a method for predicting the remaining life of a dynamic filter compensator, including the following:

[0020] Obtain monitoring data and preprocess the monitoring data. The monitoring data includes time series monitoring data. The preprocessing includes dividing the monitoring data into training data and test data, and normalizing the monitoring data to eliminate different dimensions. Impact;

[0021] Calculate the Spearman correlation coefficient between the monitoring data and the remaining service life, and ...

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Abstract

The embodiment of the invention provides a method for predicting the residual life of a dynamic filtering compensator. The method comprises the following steps of: obtaining monitoring data, and preprocessing of the monitoring data; calculating a Spearman correlation coefficient between the monitoring data and the residual life, and setting a threshold value to perform feature screening so as to obtain feature-screened data related to degradation; constructing a mixed attention time convolutional network according to the feature-screened data; and obtaining a prediction model according to the mixed attention time convolutional network, and obtaining residual life data according to the prediction model. The method can effectively improve the prediction efficiency and precision.

Description

technical field [0001] The invention relates to the technical field of equipment state monitoring and life prediction, in particular to a method for predicting the remaining life of a dynamic filter compensator. Background technique [0002] The dynamic filter compensator is a fully automatic dynamic filter reactive power compensation device that uses a microprocessor to control the switching of the thyristor to switch the tuning capacitor group. It is an updated product of the reactive power compensation equipment. This type of product adopts advanced technologies such as microprocessor reactive power real-time monitoring of thyristor zero transition process, rapid switching, harmonic current suppression, etc., suitable for application in various complex industrial field environments, and can be accurately, quickly, and without transient disturbance Dynamic reactive power compensation can effectively improve the power factor of various electrical equipment, increase the out...

Claims

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Application Information

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IPC IPC(8): G01N27/90G01N3/32
CPCG01N27/90G01N3/32Y02E40/40
Inventor 杨英华姚旦旦董纳新刘旭升
Owner 东冶及策河北能源技术有限公司
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