Mesh generation method for power distribution network meshing planning

Abstract

The invention discloses a mesh generation method for power distribution network meshing planning. According to the method, the current situation of a regional power distribution network is analyzed, the idea and method of the power distribution network meshing planning at home and abroad are combined and researched, the meshing planning is deeply analyzed and compared, and the three-grade mesh generation method is provided. The method comprises the steps that firstly, a power distribution reliability target is defined, the boundary condition of a research object is set; then, three-grade mesh generation is carried out; power distribution mesh generation is carried out, functional mesh generation is carried out, and power utilization mesh generation is carried out; then, power distribution network planning of three-grade meshes is carried out through the power distribution network meshing planning method; a planning result is evaluated through a power distribution network reliability evaluation method, and then the three-grade mesh generation method meeting the reliability target can be obtained.

Description

technical field [0001] The invention relates to a grid division method for grid planning of a distribution network, belonging to the technical field of distribution networks. Background technique [0002] The distribution network directly faces customers, not only undertaking the mission of fulfilling social responsibilities, but also related to the economic benefits of enterprises. The foundation of my country's distribution network is weak. In history, the medium and low voltage distribution network was basically built according to the needs of users, and was greatly influenced by investors. Its grid structure and power supply reliability have always lacked standardized management and specific analysis. At present, each region has consciously formed a grid structure suitable for its own grid development needs based on the actual situation of its own grid development and according to the comprehensive factors such as the level of economic development, grid planning ideas, p...

AI Technical Summary

Problems solved by technology

First, this approach to planning is not particularly effective if planners are primarily concerned with reducing costs or with limited budgets

Second, although this accident-based planning approach enumerates and addresses every possible one- or two-device outage scenario, in terms of equipment load (peak load / capacity), the ) is higher than the conventional level, the reliability level of the system level cannot be ensured, because the method fails to consider the load transfer between levels

Among them, the failure mode effect analysis method is the most traditional distribution network power supply reliability evaluation method. The principle of this method is simple and clear, and the model is accurate. However, its calculation amount increases exponentially with the For complex power distribution networks, this method will also face an insurmountable "calculation disaster", so it needs to be improved

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