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Method and system for checking data accuracy of substation on-line monitoring system

A monitoring system and accuracy technology, applied in the direction of data processing applications, instruments, calculations, etc., can solve the problems of taking up time for complex problems, prone to work errors, and abnormal states that cannot be detected in time, so as to achieve the effect of easy judgment

Inactive Publication Date: 2018-04-20
XUJI GRP +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, this comparison work is basically done manually. The mechanically repeated data comparison work brings high labor costs, squeezes the time of professional technicians to deal with complex problems, and is also prone to work mistakes.
If latent problems such as significantly low measurement values ​​occur in the online monitoring system between the two manual calibration times specified above, the abnormal state will not be detected in time, which will lead to the occurrence of missed reports

Method used

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  • Method and system for checking data accuracy of substation on-line monitoring system
  • Method and system for checking data accuracy of substation on-line monitoring system
  • Method and system for checking data accuracy of substation on-line monitoring system

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Embodiment Construction

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0039] Such as figure 1 As shown, a proofreading method for data accuracy of a substation online monitoring system includes the following steps:

[0040] Step 1: Obtain online monitoring data and offline test data at the same time point to form a proofreading database;

[0041] The step 1 specifically includes: setting a data observation time window T, and obtaining all offline test data x within the data observation time window T from the power grid management system PMS 1 ,x 2 ,...,x n and the time point t corresponding to the offline test data 1 ,t 2 ,...,t n , at the same time, the time point t is obtained from the online monitoring system database 1 ,t 2 ,...,t n The corresponding online monitoring dat...

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Abstract

The invention relates to a method and system for checking data accuracy of a substation on-line monitoring system. The method comprises: online monitoring data and off-line testing data of a same timepoint are obtained and a checking database is formed; at least one checking index is obtained based on the checking database; and the at least one checking index is compared with a set correspondingthreshold and an online monitoring system data accuracy determination result is generated. According to the checking method, the performance of the online monitoring system can be calibrated dynamically and the abnormal state of the online monitoring system can be discovered timely, so that the assistance is provided for dealing with a fault timely, preventing a missing report event, and evaluating the product performance of the online monitoring system manufacturer.

Description

technical field [0001] The invention relates to the technical field of status evaluation and maintenance of power grid equipment, in particular to a method and system for correcting data accuracy of an online substation monitoring system. Background technique [0002] With the gradual development and maturity of online monitoring technology, more and more equipment in substations are equipped with online monitoring devices. Through online monitoring of equipment, the operation and maintenance department can obtain real-time operating data of the equipment, so as to provide timely warnings and formulate countermeasures for abnormal status of the equipment. However, due to the different manufacturers of the online monitoring system, its performance is also uneven, and there is even behavior of uploading false data. The power grid company stipulates that the transportation inspection department should carry out the accuracy check of the online monitoring data twice a year (sum...

Claims

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Application Information

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IPC IPC(8): G06Q10/00G06Q50/06
CPCG06Q10/20G06Q50/06
Inventor 李贞林湘宁刘永欣谢志成李正天姜帅张宏志徐诗鸿
Owner XUJI GRP
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