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Power distribution network partitioning method based on electrical distance and K-means clustering algorithm

A k-means clustering and electrical distance technology, applied in the field of distribution network, can solve problems such as providing conditions for safe and stable operation of the power grid

Pending Publication Date: 2021-07-06
ZHANJIANG POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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Problems solved by technology

However, the existing technical solutions need to consider the disadvantages of load type or load size, and cannot provide conditions for the safe and stable operation of the power grid.

Method used

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  • Power distribution network partitioning method based on electrical distance and K-means clustering algorithm
  • Power distribution network partitioning method based on electrical distance and K-means clustering algorithm
  • Power distribution network partitioning method based on electrical distance and K-means clustering algorithm

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Embodiment Construction

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without...

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Abstract

The invention provides a power distribution network partitioning method based on an electrical distance and a K-means clustering algorithm. According to the method, the electrical distance between nodes of the power distribution network is defined based on the sensitivity of voltage amplitude to reactive power, a main line is determined, the electrical distance of a non-main line is corrected, then a mapping function is adopted to obtain electrical distance indexes to form an electrical distance set, a cluster center is selected based on a K-means clustering algorithm, and the power distribution network is partitioned according to the similarity of the clusters. According to the method, the defect that the type, position and output of the distributed power supply influence the power distribution network partition is effectively overcome, and conditions are provided for realizing safe and stable operation of the urban power distribution network.

Description

technical field [0001] The invention relates to the field of distribution networks, in particular to a method for partitioning distribution networks based on electrical distance and K-means clustering algorithm. Background technique [0002] In recent years, distributed power has been developing rapidly in my country. A high proportion of distributed power is connected to the power grid, making the distribution network from passive to active. The output of distributed power is random, intermittent, and unschedulable, which brings problems such as voltage fluctuations to the power grid, and voltage fluctuations cause reactive power changes. , which brings challenges to the stable operation of power system voltage. The problem of voltage stability becomes severe with the large-scale development of distributed power sources, and the quality of the operating voltage of the power grid is a comprehensive reflection of the distribution network structure, reactive power supply conf...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/16H02J3/38G06Q50/06G06Q10/04G06K9/62
CPCH02J3/16H02J3/381G06Q50/06G06Q10/043G06F18/23213Y02E40/30
Inventor 刘颖柯宙志陈宇钊黄真有林毅杨瑞锋黄嘉卓黎敏王俏张毅
Owner ZHANJIANG POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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