Line loss optimal segment point optimization design method and device considering space-time expansion

Abstract

The invention relates to a line loss optimal segment point optimization design method and equipment considering space-time expansion. The method comprises the following steps: 1) obtaining basic machine account data of a power distribution network system to be optimized and operation data of power distribution network equipment in one year; 2) based on the basic standing book data, considering spatial expansion, and determining an analysis range of a to-be-optimized power distribution network system; 3) in the analysis range, based on the operation data of the power distribution network equipment in one year, time extension is considered, and optimal segmentation point optimization calculation is carried out; and 4) taking the optimal calculation result as the optimal segmented operation mode of the distribution line in the analysis range. Compared with the prior art, the method has the advantages of high reliability, high accuracy and the like.

Description

technical field [0001] The invention relates to the field of multi-connection distribution network wiring, and in particular, relates to a method and equipment for optimal design of line loss optimal segment points considering space-time expansion. Background technique [0002] With the continuous improvement of users' requirements for power supply reliability and short-term power failure of distribution network, the multi-connection distribution network wiring mode has been developed due to its advantages of high equipment utilization, which has changed the traditional single-line radiation power supply mode and improved the Power supply reliability and maintenance capability of line equipment; in the entire power system, line loss is the main component of power system loss. [0003] In the multi-connection distribution network wiring mode, the disconnection of multiple substation lines in the 10kV distribution network line forms a new distribution line through the opening ...

AI Technical Summary

Problems solved by technology

[0003]In the multi-connection distribution network wiring mode, the disconnection of multiple substation lines in the 10kV distribution network line forms a new distribution network through the opening and closing of the contact switch. Lines, to supply power to users on the lines, have the advantages of high contact rate, flexible distribution network structure and small power supply radius; the more lines hand in hand and mutual supply, the more contact switches, and of course the more optional operation modes However, due to the increase in the number of contact switches, there are technical problems in the operation mode and data statistics of multi-connection distribution network wiring. At present, there is a lack of comprehensive analysis of the load of each line segment, and it is not necessarily possible to select the optimal contact switch opening and closing. Switching the operation mode of the line by means of other methods may easily cause uneconomical operation of the power grid, resulting in increased line loss

The existing optimal segmentation point method can usually only analyze the line loss composition of a single line in a single period of time, and cannot conduct an overall linkage analysis on the power supply block composed of the opposite line connected with this line, resulting in relatively independent analysis results. It is difficult to carry out analysis from a global perspective, resulting in a relatively weak application of calculation results to guide grid adjustment and transformation

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