Looped network-free island-free power distribution network generation method based on branch matrix

Abstract

The invention provides a looped network-free island-free power distribution network generation method based on a branch matrix. The method comprises the following steps: inputting data required for generating a power distribution network, and initializing a required matrix; carrying out preliminary power distribution network generation decision; checking whether all the nodes are isolated or not,and correcting the isolated nodes; checking whether a dual-power supply condition exists in all generated lines or not, and correcting the dual-power supply lines; checking whether all generated linesare isolated chains or not, and correcting the isolated chains; and outputting a bank matrix and an adjacent matrix of the looped network-free island-free power distribution network. The objective ofthe invention is to reduce a large number of net racks which do not meet net rack constraints and are generated in a power distribution network primary system net rack planning process. According tothe looped network-free island-free power distribution network generation method provided by the invention, the primary system network frame is generated on the basis of the bank matrix, so that the result of the method can be more conveniently butted with subsequent load flow calculation and reliability calculation in the primary system network frame planning process.

Description

technical field [0001] The invention relates to the field of network frame planning of a primary system of a distribution network, in particular to a method for generating a ring-free and island-free power distribution network based on a branch matrix. Background technique [0002] The distribution network primary system grid planning process is generally given the new park control plan, predicting the load size of each plot, planning the location of the power room for each plot, and planning the connection relationship between the substation and each power room in the new park , forming a distribution network primary system grid including multiple feeders. [0003] Among them, when using mathematical modeling and intelligent algorithm optimization methods to plan the connection relationship between substations and power houses in the new park, it is often necessary to generate many distribution network primary system grids. Based on the newly generated primary system grid,...

AI Technical Summary

Problems solved by technology

[0005] In summary, the existing distribution network grid generation technology in distribution network planning is difficult to generate multiple constraints at one time that satisfy the radial constraints, that all load points can be connected to power points, and that a feeder cannot be connected by two power points. Insufficient distribution network structure with power supply constraints, and there is no method for generating distribution network structure based on branch matrix

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