Fault self-diagnosis method and system for power distribution terminal

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...

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