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Zone area camera recognition method

A phase identification and stage area technology, applied in the field of electric power, can solve problems such as high cost and waste of resources

Active Publication Date: 2019-08-20
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the program is promoted, the old products need to be replaced in an all-round way, resulting in high cost
Not only that, the initiative to adopt this scheme lies with the manufacturer of the routing module, because each manufacturer of the routing module usually adopts a different phase identification scheme, which will inevitably lead to waste of resources

Method used

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Effect test

Embodiment 1

[0055] Such as figure 1 As shown, the station area phase identification method in this embodiment is used for the station area phase identification system formed by the concentrator, the master meter and M single-phase electric meters. The station area phase identification method based on cosine similarity includes the following steps 1~Step 9:

[0056] Step 1, the concentrator collects the actual value of the three-phase voltage data of the total meter and the actual value of the voltage data of any one of the single-phase electric meters at the same time according to the preset time interval within the preset time period, and obtains the corresponding value of the total meter Three-phase voltage data actual value set and the voltage data actual value set of any single-phase electric meter; wherein, the preset time period is marked as Y, the preset time interval is marked as W, and the concentrator is in the preset time period Y The total number of collection times in is mar...

Embodiment 2

[0083] The invention discloses a phase identification system for a station area, which includes a concentrator, a master meter and M single-phase electric meters, and also includes the following modules:

[0084] Voltage data collection module: the concentrator collects the actual value of the three-phase voltage data of the master meter and the actual value of the voltage data of any single-phase electric meter at the same time according to the preset time interval within the preset time period, corresponding to Obtain the actual value set of the three-phase voltage data of the general meter and the actual value set of the voltage data of any single-phase electric meter;

[0085] The change trend sequence construction module of voltage data: according to the three-phase voltage data actual value set of the obtained general table and the voltage data actual value set of any single-phase electric meter, construct the change trend sequence for each phase voltage data of the gener...

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Abstract

The invention relates to a zone area camera recognition method. The method comprises the following steps: correspondingly obtaining a general ammeter three-phase voltage data change tendency sequenceand a single-phase ammeter voltage data change tendency sequence after acquiring the collected three-phase voltage data actual value set of the total ammeter and the voltage data actual value set of selected any single-phase ammeter, and then obtaining a change tendency goodness of fit sequence for representing the change consistency of the total ammeter each phase voltage and the single-phase ammeter voltage change, and taking the total ammeter voltage phase corresponding to the change tendency goodness of fit sequence nearest to the numerical value 1 in the change tendency goodness of fit sequence corresponding to each phase voltage in the total ammeter as the voltage phase connected with the single-phase ammeter. The accurate recognition on the voltage phase connected with each single-phase ammeter in the zone area can be accomplished without changing the existing the zone area and adding an adaptive module for a concentrator and each single-phase ammeter, and the cost for identifying the single-phase ammeter phase recognition in the zone area is effectively saved.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a phase identification method for a station area. Background technique [0002] The application of automatic phase identification technology for concentrators and meters in the metering automation system is conducive to quantifying the phase load and grouping loss of the station area, and realizing accurate monitoring and analysis of the line loss in the station area, which is an inevitable trend of power grid loss management; It can minimize the loss in the power transmission process on the basis of ensuring the power balance and safety of the distribution transformer in the station area. The level of economic operation has great practical value. [0003] In order to accurately obtain the phase information of the single-phase electric meter and the phase information of the concentrator in the station area, the existing phase identification method mainly performs phase detection th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R25/00
CPCG01R25/00
Inventor 徐晴黄奇峰赵双双田正其刘建段梅梅夏国芳欧阳曾恺周超祝宇楠龚丹
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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