A Method for Load Synchronization Detection of Power Secondary Cables Based on BeiDou Timing Data

Conventional power secondary cable load synchronization detection method is based on the load frequency band characterization, and does not take into account the influence of harmonic interference, and the detection results are biased. Therefore, a power secondary cable load synchronization detection method based on Beidou timing data is designed. Detecting the load synchronization variable time sequence of power secondary cable, detecting the load abnormality of a continuous univariate or multivariate time sequence, ensuring the comprehensiveness of load detection. Based on the BeiDou time series data synchronization to locate the abnormal load interval of the secondary cable, using the signal of BeiDou satellite navigation system, the scattering parameters of the secondary cable are determined, and they are used as the observation quantity of the abnormal load combination to avoid the problem of the load synchronization detection error. Using comparative experiments, it is verified that the method has better quality of synchronous detection and can be applied in real life.