Power supply path tracking method suitable for large-scale complex power distribution network

A technology of power supply path and distribution network, applied in data processing applications, electrical digital data processing, special data processing applications, etc., can solve problems such as inability to meet real-time control and slow response speed

Inactive Publication Date: 2014-12-17
CHINA SOUTHERN POWER GRID COMPANY +1
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Problems solved by technology

[0005] When dealing with large-scale distribution networks, the above two methods have the problems of slow response speed and inability to satisfy real-time control, and there are leakage paths in the case of many distribution network loops and feeder loops in the second half. How to make full use of the characteristics of the distribution network, research a more efficient, real-time, general-purpose power supply path tracking method suitable for large-scale distribution networks, and meet the needs of real-time scheduling analysis is a problem worthy of further study

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  • Power supply path tracking method suitable for large-scale complex power distribution network

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Embodiment

[0024] Taking a small power system model as an example below, a specific embodiment of the present invention is introduced. The grid model of this embodiment is as follows figure 1 As shown, there are two feeders in the grid model, feeder 1 and feeder 2, where feeder 1 includes 9 nodes 1, 2, 3, 4, 5, 6, 7, 8, 9, and feeder 2 includes 9 nodes 1 `, 2`, 3`, 4`, 5`, 6`, 7`, 8`, 9`, where nodes 1 and 1` are power supply mounting nodes, two power supplies S 1 , S 2 Both are active, there is a tie switch between nodes 9 and 8`, and the target device is the load Load mounted on node 8 of feeder 1. In this embodiment, the tie switch between nodes 9 and 8` is respectively shown to be closed and opened The power supply path tracing method for two cases.

[0025] This embodiment includes the following steps:

[0026] 1) Establish a distribution network model: Put the active power supplies in the distribution network into the set Source, and the i-th power supply S in the set Source i ...

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Abstract

The invention relates to a power supply path tracking method suitable for a large-scale complex power distribution network, and belongs to the technical field of power system topology design. The method comprises the following steps: building a power distribution model; acquiring a parent-child relation between a loop and a node in the power distribution network through breadth-first search; acquiring one of power supply paths according to the parent-child relation; and complementing other power supply paths according to the loop in the power distribution network to obtain a complete power supply path of target equipment. Through adoption of the power supply path tracking method, the defect of path missing during analysis of the power supply path of a looped power distribution network in the prior art can be overcome; and the method has very high robustness and a very high computing speed, and the requirement of real-time analysis can be met.

Description

technical field [0001] The invention belongs to the technical field of power system topology design, and in particular relates to a power supply path tracking method suitable for large-scale and complex distribution networks. Background technique [0002] Topology analysis is the basic function of distribution network analysis. It forms the complete topology structure of distribution network and the topological elements of busbar and line through the relationship between topological points and lines in distribution network. Different from the transmission network, the distribution network usually operates radially, forming many electrical islands, and the feeder is the basic analysis and calculation unit. Due to the large number of feeders in the distribution network, and the operation mode of each feeder is not static, sometimes the feeders will run in a weak ring network, and it becomes very difficult to manually analyze the power supply path of the equipment, and the powe...

Claims

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Application Information

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IPC IPC(8): G06Q50/06G06F17/30
Inventor 易勇强柳涛贺彦奚建飞袁捷罗汉张鹏郭玮
Owner CHINA SOUTHERN POWER GRID COMPANY
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