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A comprehensive research and judgment method for distribution network fault handling

A technology for distribution network faults and distribution networks, which is applied to fault locations, circuit devices, and fault detection according to conductor types. Effects of processing efficiency and control strength, deepening functional application, and improving control strength and level

Active Publication Date: 2021-10-29
STATE GRID FUJIAN ELECTRIC POWER CO LTD +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, there are still fault procedures that are not standard enough, fault research and judgment coverage is insufficient, fault handling efficiency is not high, process safety control is weak, and post-event analysis and evaluation are difficult

Method used

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Embodiment Construction

[0025] In the following, the technical solution of the present invention will be described in detail.

[0026] The present invention provides a comprehensive research and judgment method for distribution network fault disposal, which includes the following steps:

[0027] 1) Establish a set of horizontal coverage of all types of faults in the distribution network in the DMS system, such as common short-circuit faults, phase failure faults, busbar voltage loss, ground loss faults, and line overload faults.

[0028] 2) The main station system of distribution automation researches and judges different fault handling schemes according to different sensing signals.

[0029] 3) The power distribution automation master station system automatically analyzes information such as real-time power supply topology and commonly used contact cards according to the analyzed fault interval, intelligently introduces fault isolation and transfer auxiliary decision-making schemes through load calc...

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Abstract

The invention relates to a comprehensive research and judgment method for distribution network fault disposal. This method establishes a set of horizontal coverage of all fault types in the distribution network in the DMS system, covering common short-circuit faults, phase failure faults, busbar voltage loss, ground loss faults, line heavy overload and other faults in the distribution network. Through the closed-loop management process of fault perception, fault analysis, isolation and transfer, fault repair, power transmission operation, and end, the DMS system will actively analyze and identify fault signals after receiving various fault alarm information Fault research and judgment perception, and comprehensive analysis of the research and judgment results, which is convenient for commanding on-site search and isolation, transfer and other operations. The present invention can realize all types of decision-making, all-information monitoring, all-on-line management and control, and full-process control of distribution network faults, further improves the processing efficiency and management and control of distribution network faults, and comprehensively improves the safety of distribution network operation and fault handling , Efficient and standardized management level.

Description

technical field [0001] The invention belongs to the field of power system distribution automation, and in particular relates to a comprehensive research and judgment method for distribution network fault disposal. Background technique [0002] In recent years, Fujian distribution automation master station system has preliminarily realized the integration of operation, distribution and dispatching data, considerable and controllable distribution network operation status, and the application of short-circuit fault research and judgment of multi-source information, which has effectively improved the automation level of distribution network. However, there are still failure procedures that are not standardized enough, failure research and judgment coverage is insufficient, failure handling efficiency is not high, process safety control is weak, and post-event analysis and evaluation are difficult. In order to achieve the construction goal of "full research and judgment, full rem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/52G01R31/54G01R31/00G01R19/155G01R31/08H02J13/00
CPCG01R19/155G01R31/00G01R31/086
Inventor 殷自力陈宇星李吉昌张功林庄国贤张君泉彭正良陈冠辉
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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