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Courts phase identification method based on Pearson correlation coefficient algorithm

A Pearson correlation and phase identification technology, applied in the field of station phase identification based on the Pearson correlation coefficient algorithm, can solve the problems of manpower and material resources, high promotion cost, waste of resources, etc., and achieve low detection cost and high detection accuracy. , Phase detection convenient effect

Inactive Publication Date: 2018-09-11
NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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Problems solved by technology

[0003] One is to perform phase detection through power failure, that is, to stop the power of a certain phase, and then detect which single-phase ammeters have stopped working, and then it can be judged that these single-phase ammeters are connected to the phase that has been powered off. , but adopting this method will firstly affect the daily life of the names. Secondly, each station area needs manual processing, which consumes manpower and material resources. Finally, if the number of users changes or the location of users changes in the region, it needs to be re-run. renew
[0004] Another is to install a new type of routing module in the station area, and add the function of collecting the phase of the electric energy meter in the station area to this routing module. However, this structure requires that the collection device concentrator, routing module and electric energy meter all support it. Yes, the promotion cost is high, and the initiative of this technical solution lies with the router manufacturer, each manufacturer has different solutions, and the energy meter and concentrator need to adapt the routing module to make different solutions, which will cause a waste of resources

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  • Courts phase identification method based on Pearson correlation coefficient algorithm
  • Courts phase identification method based on Pearson correlation coefficient algorithm
  • Courts phase identification method based on Pearson correlation coefficient algorithm

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[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to the following specific embodiments.

[0032] A method for phase identification of a station area based on the Pearson correlation coefficient algorithm, which comprises the following steps:

[0033] S1. The concentrator simultaneously collects the three-phase voltage value UA of the master meter every W time X , UB X 、UC X And the voltage data Um of each single-phase meter X , where UA X is the voltage value collected for the Xth time of phase A, UB X is the voltage value collected for the Xth time of phase B, UC X is the voltage value collected for the Xth time of phase C, Um X Be the voltage value collected for the Xth time by the m single-phase meter; in this specific embodiment, W is set to detect once in 15 minutes,

[0034] S2. After running for Y time, the data is collected N times, and th...

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Abstract

The invention relates to the technical field of electric energy meters, in particular to a courts phase identification method based on a Pearson correlation coefficient algorithm. The method mainly includes the steps of calculating Pearson correlation coefficients of a single-phase energy meter and A, B and C phases and then judging the phase according to the obtained Pearson coefficients. According to the method, voltage data collected by a concentrator can be used to detect the phase difference of the single-phase energy meter, it is convenient to detect phase information, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of electric energy meters, in particular to a phase identification method of a station area based on a Pearson correlation coefficient algorithm. Background technique [0002] In the prior art, there are generally two ways to obtain the phase information of the single-phase working electric meter and the acquisition equipment in the station area: [0003] One is to perform phase detection through power failure, that is, to stop the power of a certain phase, and then detect which single-phase ammeters stop working, and then it can be judged that these single-phase ammeters are connected to the phase where the power is cut off. , but adopting this method will firstly affect the daily life of the names. Secondly, each station area needs manual processing, which consumes manpower and material resources. Finally, if the number of users changes or the location of users changes in the region, it needs to be re-run....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R25/00
CPCG01R25/00
Inventor 姚豪立王培慧汝黎明
Owner NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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