DONG Yue, XIAO Deng-ming. Application of Dual Spectrum Analysis to Mechanical Vibration Signal Process of High Voltage Circuit Breakers Based on WP-AR Model[J]. High voltageapparatus, 2009, 45(4): 137-141.
DONG Yue, XIAO Deng-ming. Application of Dual Spectrum Analysis to Mechanical Vibration Signal Process of High Voltage Circuit Breakers Based on WP-AR Model[J]. High voltageapparatus, 2009, 45(4): 137-141.DOI:
The mechanical vibration signals with noises interference
sampled in site
are de-noised with WP(wavelet package) method to achieve the aim frequency band.Then with the Levinson-durbin solution
the parameters of AR model are obtained in the Yule-walker equation.The high order spectrum analysis is then used to deal with the parameters
which provides the dual spectrum results for the proof of on-line fault diagnosis of circuit breaker.The analysis of field data shows that this method is feasible and efficient to provides a good means foron on-line fault diagnosis of CB.