Courts phase identification method based on linear regression processing

Abstract

The invention relates to a courts phase identification method based on linear regression processing. The method comprises the following steps: obtaining a three-phase voltage data actual value set ofa collected total meter and a voltage data actual value set of any single-phase electricity meter, and then establishing a simple regression equation set using voltage data of the any single-phase electricity meter as dependent variables and using three-phase voltage data actual values of the collected total meter as independent variables respectively; respectively obtaining interception values and slope values of equations according to the established simple regression equation set and a three-phase voltage data average value of the total meter, obtaining specific simple regression equations,calculating an accumulated value of difference squares between a voltage data theoretical value of the single-phase electricity meter and the voltage data actual value of the single-phase electricitymeter, and using a voltage phase corresponding to the accumulated value with the minimum numerical value as a voltage level connected to the any single-phase electricity meter. The voltage level connected to each single-phase electricity meter in the courts can be accurately identified just by upgrading a program designed based on the scheme without changing the existing courts.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a phase identification method for station areas based on linear regression processing. 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 meth...

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

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