Method and system for identifying line topology in station area based on load characteristics of electrical start-up and stop

Abstract

The invention discloses a method and a system for identifying the circuit topology of a station area based on the load characteristics of the start-up and stop of electric appliances. The load feature extraction in this method no longer depends on the full node in the station area, and the reading range can be adjusted as needed and correspondingly identified. In extreme cases, it can even be decomposed into reading only one sub-table and the load data of all branch units at a time. , and then use load feature map comparison to identify multiple branch units on the same branch as the sub-meter, and then sort the multiple branch units according to the load value to obtain the line topology of the branch where the sub-meter is located. Repeat the operation on other sub-meters to get the line topology of the branches where all the sub-meters are located. This method is no longer subject to the bandwidth problem of the HPLC network, and can be effectively applied to the line topology identification in Datai District. Moreover, the line topology is identified by comparing the load characteristic maps generated based on the start-stop characteristics of specific electrical appliances, which improves the accuracy and efficiency of the identification results.

Description

technical field [0001] The present invention relates to the technical field of network topology identification technology, in particular, to a method and system for identifying the topology of a network based on the load characteristics of electric appliances starting and stopping. Background technique [0002] The line topology in the station area is the basic data of the power grid, which is widely used in the power distribution and utilization links of the power grid. Based on the accurate line topology data, it can realize fast operation inspection and solve the problem that dark lines are difficult to manually check. It can calculate the lean line loss in the station area, Three-phase unbalance control, power theft and grounding and other abnormal situations are investigated. At the same time, line topology data is also a prerequisite for realizing high-density renewable energy access, orderly charging of electric vehicles and other intelligent applications in the statio...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and system for identifying the line topology of the station area based on the load characteristics of the start-up and stop of electrical appliances, so as to solve the technical problem that the existing load characteristic scheme cannot identify the line topology of the large station area

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