Phase identification method of station area based on synchronous sampling of concentrator and meter

Abstract

The invention relates to a phase identification method of a station area based on synchronous sampling of a concentrator and an electric meter. After the time synchronization operation of the concentrator and the collector is performed, there is almost no time delay between the two, which will enable the concentrator to collect After the controller issues the scheduled sampling command, ensure that the concentrator and the collector start the data collection operation at the same scheduled sampling time point to further improve the recognition accuracy for the phase identification of the station area; The phase voltage data and the voltage data of the single-phase ammeter obtained by the concentrator at the collector are processed to obtain the standard deviation of the voltage of the single-phase ammeter to the voltage of each phase of the general meter in the station area, and judge according to the three standard deviations obtained Whether the voltage fluctuation curves between the three phases of the single-phase ammeter and the general meter of the station area are similar to determine the phase connected to the single-phase ammeter, which improves the recognition rate of the phase of the single-phase ammeter in the station area.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a phase identification method of a station area based on synchronous sampling of a concentrator and an electric meter. Background technique [0002] In the power system, the accurate identification of the phase of each single-phase meter in the station area is not only conducive to the quantification of the phase load and group loss of the station area, the realization of accurate monitoring and analysis of the line loss in the station area, but also can be guaranteed in the station area. On the basis of the power balance and safety of the district distribution transformer, the loss during the power transmission process should be minimized, which will help the line loss management personnel to find and solve problems in a targeted manner. At present, the phase identification of each single-phase ammeter in the station area mainly includes adopting the power outage method and adding ...

AI Technical Summary

Problems solved by technology

However, this phase recognition detection method requires the support of concentrators, routing modules and electric energy meters, and the cost of promotion is relatively high.

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