The field-circuit coupled physical simulation of open boundary electric field

The solution of open boundary electric field is a common problem in the electrical field, and the treatment of the open boundary condition is one of the difficulties. In this paper, a physical simulation method of open boundary electric field based on field-circuit coupling is introduced. The near field of open boundary electric field is retained, and the far field is equivalent to a resistance network. The scattered compensation electrodes are placed on the interface to maintain the interface potential condition and realize the coupling of electric field and circuit. The resistance calculation and the optimal design of compensation electrodes are completed by means of electromagnetic numerical calculation software. The correctness of this method and the effectiveness of simulating open boundary electric field are verified by experiments.