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Self-diagnosis method and system for fault of power distribution terminal

A self-diagnostic system, power distribution terminal technology, applied in general control systems, control/regulation systems, information technology support systems, etc., to ensure safe and reliable operation and improve reliability.

Active Publication Date: 2017-08-29
SHANGHAI WISCOM SUNEST ELECTRIC POWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the initial diagnosis of hidden faults in power distribution terminals, this application provides a self-diagnosis method and system for power distribution terminal faults

Method used

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  • Self-diagnosis method and system for fault of power distribution terminal
  • Self-diagnosis method and system for fault of power distribution terminal

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Embodiment Construction

[0032] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0033] Aiming at the problem that the existing power distribution terminals cannot carry out initial diagnosis of hidden faults, the present invention proposes a method for self-diagnosing power distribution terminal faults based on state sequences. The state sequence is generated according to the detection of the operating state of the power distribution terminals. Judgment rules and fault symptom judgment rules perform abnormal symptom judgment and fault identification on the state sequence, so as to achieve the purpose of initial diagnosis of hidden faults in power distribution terminals.

[0034] Specifically, the self-diagnosis method for power distribution terminal faults in this example includes the following steps, and its schematic diagram is as follows figure 1 shown.

[0035] S1: Establish abnormal symptom judgment rul...

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Abstract

The invention discloses a self-diagnosis method and system for a fault of a power distribution terminal, and the method comprises the steps: building an abnormal symptom discrimination rule and a fault symptom discrimination rule; collecting the abnormal symptom operation state of the power distribution terminal, and generating a state sequence; judging whether the state sequence has an abnormal symptom or not according to the abnormal symptom discrimination rule; and carrying out the fault recognition of the abnormal symptom according to the fault symptom discrimination rule if there is the abnormal symptom. The abnormal symptom discrimination rule is used for judging the abnormal symptom operation state of the power distribution terminal so as to find the possible abnormal symptom, and then the fault symptom discrimination rule is used for carrying out the fault recognition of the abnormal symptom so as to quickly find out the fault causing the abnormality from the abnormal state, thereby achieving the advanced prevention of a hidden fault of the power distribution terminal or eliminating the fault, guaranteeing the safe and reliable operation of the power distribution terminal, and improving the reliability of the whole power distribution automation system and the starting rate and accuracy of feed line automation.

Description

technical field [0001] The invention relates to the technical field of power distribution terminal fault diagnosis, in particular to a power distribution terminal fault self-diagnosis method and system. Background technique [0002] The power distribution terminal is the on-site monitoring and control equipment of power distribution automation, and its reliability is very important to the practical application of power distribution automation. During the actual operation of the power distribution terminal, there are many reasons for failures. The harsh operating environment (humid and rainy, etc.), artificial factors (parameter configuration errors, etc.), management factors (tilt towers), etc. may cause partial failure of the power distribution terminal. or malfunction as a whole. Generally, only when the power distribution terminal is completely offline, the remote control refuses to operate, etc., can the operation and maintenance personnel know that the power distributi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213Y04S10/52
Inventor 凌万水成晓潇
Owner SHANGHAI WISCOM SUNEST ELECTRIC POWER TECH
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