A Method for Topology Identification of Low-voltage Platform Area

A technology of low-voltage station area and identification method, applied in the field of distribution network identification, can solve problems such as cross-line, instability, inaccurate identification, etc., to achieve the effect of helping refined management

Active Publication Date: 2022-06-07
JIANGSU ELECTRIC POWER CO +1
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Problems solved by technology

However, this method has the problems of inaccurate identification and instability, and there will be cross-connection.

Method used

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  • A Method for Topology Identification of Low-voltage Platform Area
  • A Method for Topology Identification of Low-voltage Platform Area
  • A Method for Topology Identification of Low-voltage Platform Area

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Embodiment 1

[0043]Embodiment 1: A low-voltage station topology identification method based on improved correlation analysis. The method firstly uses the density-based clustering algorithm DBSCAN according to the voltage similarity of the equipment on the same-phase feeder to classify the equipment into different groups. Phase line area (A, B and C), and exclude equipment that does not belong to this station area; secondly, based on the basic law of energy conservation, the input power of upstream equipment is equal to the sum of the power of its downstream equipment, combined with the power Pearson correlation coefficient and residual power. The difference square and two factors jointly judge the connectivity between upstream and downstream devices; finally, the connectivity of devices is adjusted to establish the optimal topology of the platform.

[0044] The low-voltage station area topology identification method specifically includes the following steps:

[0045] Step 1: Take the distr...

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Abstract

The present invention relates to a low-voltage station area topology identification method. The method first classifies the equipment into different phase line areas (A, B, and C) according to the voltage similarity of the equipment on the same phase feeder line, using the density-based clustering algorithm DBSCAN ), and exclude the equipment that does not belong to the station area; secondly, based on the basic law of energy conservation, the input power of the upstream equipment is equal to the sum of the power of the downstream equipment, combined with the two factors of power Pearson correlation coefficient and residual square sum to judge the upper The connectivity between downstream devices; finally, adjust the device connectivity to establish the optimal topology of the station area. The invention can realize the topology identification of the low-voltage station area more accurately and efficiently, thereby contributing to the refined management of the distribution network side.

Description

technical field [0001] The invention belongs to the technical field of distribution network identification, in particular to a low-voltage station topology identification method based on improved correlation analysis. Background technique [0002] Smart grid is the biggest change and innovation in the world's power industry at the beginning of this century, and it also restricts and promotes the construction of smart cities. At the same time, in order to solve the key problems in the development process of smart grid, it is necessary to strengthen the refined management of the distribution network side. However, the structure of the low-voltage distribution network is complex, and there is a lack of technical means to detect and verify network topology anomalies. At the same time, manual on-site inspection is difficult and inefficient, resulting in poor data quality and untimely updates. The problem of model and data mismatch is more prominent. Therefore, how to propose an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06G06K9/62
CPCG06Q10/0639G06Q50/06G06F18/2321Y02E60/00
Inventor 马骏昶冒烨颖胡杨赵建张军杨启明吴俊兴叶忆黄政宇杨晓伟王冬瑞
Owner JIANGSU ELECTRIC POWER CO
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