Correction method and system for merging unit acquisition channels of power system

A technology of power system and correction method, which is applied in the direction of measuring electric variables, measuring current/voltage, and measuring electric power through current/voltage, etc., which can solve problems such as low efficiency and cumbersome correction process of acquisition channels of merging units, and achieve the reduction of correction The error, the correction process is simple and easy, and the effect of improving the correction efficiency and correction accuracy

Inactive Publication Date: 2015-11-11
XJ ELECTRIC +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0012] The purpose of the present invention is to provide a correction method and system for the acquisition channel of the merging unit of the po

Method used

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  • Correction method and system for merging unit acquisition channels of power system
  • Correction method and system for merging unit acquisition channels of power system
  • Correction method and system for merging unit acquisition channels of power system

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Embodiment Construction

[0044] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0045] An embodiment of a method for calibrating an acquisition channel of a power system merging unit of the present invention

[0046] The method for correcting the acquisition channel of the power system merging unit of the present invention firstly completes the acquisition of the data of each channel, and the acquired data is continuous and effective cycle data, and then stores the data in the respective channel data backup areas, such as image 3 and stop the data storage work of the channel after the stored data reaches the number of points required for the correction; finally, perform the corresponding channel correction on the data in the data backup area of ​​each channel whose storage work is stopped. The correction process is performed by calling the corresponding The correction module is implemented.

[0047] The whole process is...

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Abstract

The invention relates to a correction method and a system for merging unit acquisition channels of a power system, which belongs to the technical field of acquiring analog data in a power system. Firstly, data from each channel are acquired and the acquired data are continuous effective cycle data. The data are then stored respectively in the backup zone of their own channel. The data storing process of the channel aborts when the stored data reaches to the amount for correction. In the end, the stored data in the backup zone of the channels since the abortion of the data storing process are corrected and the correction process is realized through the accessing of corresponding correction modules. In comparison with a traditional correction process of channels characterized by the modification of hardware parameters, the method provided by the invention greatly increases the correction efficiency and accuracy of channels and reduces correction error. Further, the correction process is made more convenient to perform with the method provided by the invention.

Description

technical field [0001] The invention relates to a method and a system for calibrating an acquisition channel of a power system merging unit, and belongs to the technical field of power system analog data acquisition. Background technique [0002] In today's power system, the process layer completes real-time electrical quantity detection of power operation, state parameter detection of operating equipment, and operation control execution and driving. It is the implementation of the so-called analog quantity, switch quantity acquisition, and control command. Process layer equipment includes optoelectronic transformers, merging units, and intelligent terminals. The combiner is connected to the output of the transformer and performs data transfer with some cross-bay combiners. [0003] The merging unit is the interface device of the current and voltage transformers. With the promotion and engineering construction of digital substation automation technology, the function and p...

Claims

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Application Information

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IPC IPC(8): G01R35/00
CPCG01R19/2513G01R21/06G01R21/133
Inventor 宋彦锋杜文郑拓夫赵应兵沈沉徐云松汤洋杨芳叶留义纪元
Owner XJ ELECTRIC
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