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A Method for Identifying Distortion of Analog Sampling Data

A technology for sampling data and analog quantities, which is applied in the measurement of electrical variables, electrical digital data processing, special data processing applications, etc.

Active Publication Date: 2017-04-12
NARI TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The distortion of analog sampling data is a common phenomenon in power systems. The reason for the distortion of sampling data may be that the electromagnetic transformer is subjected to external electromagnetic interference, or it may be a bad point in the transmission process of the sampling value in the smart substation.

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Embodiment Construction

[0017] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0018] A method for identifying the distortion of analog sampling data is used in a power system dynamic recording device or a network data analyzer. Specifically, firstly, each process flow definition is set, including a sampling step and a step of waveform recognition of the sampled data; in this embodiment, the sampling step is to sample the analog quantity in the microcomputer protection or control device of the power system.

[0019] The sampling step is as follows: sample the analog quantity...

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Abstract

The invention provides a method for recognizing distortion of analog sampling data. The method is used for solving the problem of distortion of the analog sampling data. The method includes sampling according to power frequency, comparing fundamental current amplitude and break variables with instantaneous value and break variables of sampling values, and completing waveform recognition and relevant analysis. The analog sampling data is considered distorted if the correspondence of the sampling values and the amplitude values is damaged. The method is capable of detecting distortion of the sampling value data of each cycle, and can be used in a dynamic recording device or a network data analyzer of a power system.

Description

technical field [0001] The invention relates to the field of electrotechnical technology, in particular to a method for identifying distortion of analog sampling data. Background technique [0002] The distortion of analog sampling data is a common phenomenon in power systems. The reason for the distortion of sampling data may be that the electromagnetic transformer is subjected to external electromagnetic interference, or it may be a bad point in the transmission process of the sampling value in the smart substation. The distortion of sampling data will have a serious impact on the relay protection and automation devices of the power system, so it is necessary to identify the distortion of sampling data. [0003] Therefore, a new technical solution is needed to solve the above problems. Contents of the invention [0004] The object of the present invention is to provide a method for identifying distortion of analog sampling data that can quickly identify distorted analog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00G01R29/033
Inventor 张兆云栾庆武庞志军岳蔚郭江红刘丁张明群裘愉涛
Owner NARI TECH CO LTD
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