Method and system for quickly positioning line loss of low-voltage transformer region

Abstract

The invention provides a method and a system for quickly positioning line loss of a low-voltage transformer region. The system comprises a mobile electric energy meter, a line loss analyzer and a mobile terminal. The method comprises the steps of acquiring a transformer region topological relation between a transformer in the low-voltage transformer region and each branched box by the lien loss analyzer; acquiring power consumption data of a plurality of transformer regions and users through the mobile electric energy meter; and finally integrating the data by the mobile terminal, performing calculation for obtaining the branch line loss rate of each branched box branch line, and realizing accurate positioning of the abnormal line loss branch of the low-voltage transformer region. According to the method and the system, a remote transmission mode is utilized; the mobile terminal realizes closed-loop management on a whole process which comprises work order task starting, field diagnosispositioning and reporting to a service department, thereby realizing higher management efficiency. Different from existing technology in which only integral line loss management can be performed on the integral transformer region, the method and the system have advantages of calculating each branch line loss in the transformer region, realizing quick positioning of the abnormal line loss of the high-loss transformer region, supplying each branch power consumption distribution condition, and effectively improving transformer region line loss treatment level by an electric power management department.

Description

technical field [0001] The invention relates to the field of smart grids, in particular to a method and system for locating line loss in a low-voltage station area. Background technique [0002] In response to the call of the State Grid Corporation of China to build a "world-class power grid", the local power departments compared the headquarters' construction of the "world-class power grid" index target matrix to find deficiencies, reduce the line loss of the transmission and distribution network through optimized scheduling, and propose to build an efficient and high-quality intelligent distribution network. grid goals. [0003] However, during the promotion and deepening of the construction and deepening of multiple large-scale application systems on the power distribution and consumption side of the national grid, we found that at present, the situation of abnormally high power consumption in the station area is difficult to control. The reason is that in areas with abn...

AI Technical Summary

Problems solved by technology

[0004] Although some line loss management methods for low-voltage station areas have been proposed in the prior art, due to the complex line structure of low-voltage station areas, it is difficult to accurately locate and take relevant measures to control even if line loss abnormalities are found

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