A smart circuit breaker state detection method based on current characteristic analysis

Abstract

The present application relates to the technical field of data processing, more particularly, the present application relates to a kind of intelligent circuit breaker state detection method based on current characteristic analysis, the method comprises, the original coil current sequence of the circuit breaker to be detected is acquired, and the current recess sequence corresponding to the core movement is automatically positioned, based on the fluctuation characteristics and duration of current recess sequence, the current waveform complexity factor of core movement stage is acquired, and based on the current waveform complexity factor, the mode number of variational mode decomposition is calculated to carry out variational mode decomposition to current recess sequence, extract high-frequency component as mechanical friction characteristic component, based on mechanical friction characteristic component, the mechanical friction factor of core movement stage is acquired;Based on the mechanical friction factor of core movement stage and current waveform complexity factor, the mechanical stagnation risk value is acquired to determine the state of circuit breaker, the accuracy of circuit breaker mechanical fault diagnosis is improved.

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