High-voltage circuit breaker vibration signal feature extraction method

The invention provides a high-voltage circuit breaker vibration signal feature extraction method, and the method comprises the steps: obtaining a vibration signal when a high-voltage circuit breaker acts, and carrying out the filtering of the vibration signal; extracting a first action time parameter from the filtered vibration signal; acquiring electrical parameter information when the high-voltage circuit breaker acts, and extracting a second action time parameter from electrical parameters; correcting the first action time parameter according to the second action time parameter; dividing the action cycle of the high-voltage circuit breaker into three time periods by using the corrected first action time, calculating a signal energy entropy corresponding to each time period, and combining the energy entropies of each section of signal together as a feature vector; and performing fault identification on the high-voltage circuit breaker by using a classification algorithm according to the obtained feature vec