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A Method of Distribution Fault Research and Judgment Based on Multi-system Cooperation

A multi-system, fault technology, applied in the direction of the fault location, etc.

Active Publication Date: 2017-02-08
STATE GRID TIANJIN ELECTRIC POWER +1
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Problems solved by technology

However, due to the fact that there is still a lot of room for improvement in the level of informatization and automation construction of my country's power supply system, the low-voltage model information of the distribution network needs to be further improved.

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  • A Method of Distribution Fault Research and Judgment Based on Multi-system Cooperation

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Embodiment Construction

[0031] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings: It should be emphasized that the embodiments of the present invention are illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0032] A power distribution fault research and judgment method based on multi-system cooperation, such as figure 1 As shown, the research and judgment method is based on the established distribution automation system (DMS), comprehensive power acquisition system, real-time distribution transformer monitoring system, distribution production management system and electric power 95598 repair report based on the 95598 fault The repair report is realized as the initial trigger condition. The innovation of the present invention is that it realizes the automatic judgment of the failure of the medium-voltage equipment and the automatic judgment of the failure of the low-vo...

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Abstract

The invention relates to a power distribution fault studying and judging method based on multisystem collaboration. The method comprises the following steps: a power distribution transformer object is positioned; whether the scheduled power outage is performed is judged; the known fault power outage is judged; a power outage range is defined by adopting an asynchronous interrogation mode; and a low-voltage line fault is judged. According to the studying and judging method, more comprehensive analysis of the operation state of a power distribution network is facilitated, detailed basis is provided for fault processing and standardized first-aid repair work of a power supply system, and accurate power supply device positioning and fault range defining functions are provided for low-voltage user repair reporting processing. Meanwhile, the acquired reading inquiring function of real-time electricity-using readings of intelligent meter users and the attributed power distribution transformers can be basically realized by the studying and judging method so that powerful auxiliary means are provided for real-time and accurate definition of repair reporting accident range for repair reporting users.

Description

technical field [0001] The invention belongs to the field of power system automation, in particular to the field of power distribution information technology. Background technique [0002] At present, the research on real-time fault analysis and judgment of distribution network mainly includes two levels: automatic discovery and location of medium voltage faults, and automatic diagnosis of low voltage repair faults. [0003] With the current pace of smart grid construction, the coverage of distribution automation systems is increasing day by day. People mainly realize the automatic discovery and location of medium-voltage faults through the functions of the feeder automation system. Based on the accurate topology model of the medium-voltage distribution network and real-time overcurrent, overload and other protection signals, the automation system analyzes and isolates the fault range in real time, records Corresponding power outage impact range; however, on the other hand,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08
Inventor 庄剑郭铁军陈涛葛荣刚李锦刘荣浩王强董兵殷博米娜周亚楠陈沛吴琳周养浩陈连杰吴雪琼张丽汤胜超
Owner STATE GRID TIANJIN ELECTRIC POWER
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