Simulation method and system for partial discharge electromagnetic signal of surface defect

The invention relates to a surface defect partial discharge electromagnetic signal simulation method and system. The method comprises the following steps: constructing a surface discharge fluid-chemical simulation model; simulating the surface defect partial discharge microscopic process by using a fluid-chemical simulation model to obtain a charged particle movement condition in the surface discharge process, and calculating a surface discharge current value; constructing an electromagnetic signal simulation model based on a finite integral method; and simulating an electromagnetic signal generated by partial discharge of the creepage defect by taking the creepage discharge current value as an excitation signal and utilizing an electromagnetic signal simulation model. Compared with the prior art, the method has the advantages that the relation between the macroscopic electromagnetic signal and the microdefect is established, and the partial discharge simulation signal is more accurate. 本发明涉及一种沿面缺陷局部放电电磁信号的仿真