Power distribution network fault hierarchical positioning method considering FTU missing report and false report
A technology of distribution network fault and localization method, which is applied to fault location, fault detection by conductor type, and calculation, etc., can solve the problem of low fault location accuracy, no consideration of node missed and false positives, and no proposal to reduce particle dimensions. and other problems, to achieve the effect of improving positioning fault tolerance, improving accuracy and fault tolerance, and ensuring positioning accuracy.
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[0105] Use as Figure 5 The model of the distribution circuit with wind turbines is shown. The model has 30 feeder nodes and 30 sections, the specific numbers are shown in the figure. S is the main power supply of the system, DG 1 , DG 2 For wind turbine, L 1 , L 2 For perceptual load.
[0106] 1) Perform a two-port equivalent for each branch of the distribution network. Taking the multi-branch node as the boundary, the distribution network is equivalent to ten two ports, such as Image 6 Shown:
[0107] 2) Construct a distribution network fault hierarchical model that takes account of false negatives and false positives. Ten two-ports construct the first-level positioning model. A single two-port belongs to the second-level positioning model. The common nodes and sections contained in each two-port are shown in Table 1. The underlined nodes are port nodes.
[0108] Table 1 The second port contains nodes and sections
[0109]
[0110] 3) Collection of fault information. Set the fa...
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