Switchgear partial discharge mode recognition method

The invention discloses a switchgear partial discharge mode recognition method. the method comprises steps: typical partial discharge models are firstly built, and a partial discharge signal of each model is acquired via an applied voltage test; according to the obtained partial discharge signals, a partial discharge phi-q graph or a phi-n graph is drawn, and statistical feature parameters of each type of typical partial discharge are extracted from the graph; the statistical feature parameters of each type of typical partial discharge then serve as initial training samples to train a support vector machine classifier; and finally, the well-trained support vector machine classifier is used for recognizing the partial discharge mode of the switchgear. The support vector machine classifier is used for recognizing the partial discharge mode of the switchgear, the support vector machine has a good generalization ability, small sample recognition has a good recognition rate, and problems of partial minimization, over fitting, under fitting and the like can be well solved. Compared with the traditional method, the method is simple in operation, short in time consumption, high in accuracy, and good in robustness.