DC Arc Model Superimposing Current-Controlled Arc Noise on a Heuristic Average Model

The dc series arc is one of the most common faults of aircraft systems, which is very difficult to self-extinguish and detected. Therefore, studying the dynamic characteristics of the arc and establishing an accurate simulation model are of great value for fault impact analysis and fault detection technique design. In this article, a heuristic average model is proposed based on the principle of arc power balance, and a current-controlled arc noise simulation method is provided based on the correlation mechanism between arc noise and arc current. By superimposing the arc noise on the proposed average model, the dynamic characteristics of the dc series arc can be accurately described. Compared with the existing models, the proposed model in this work has significantly improved simulation accuracy of the dc series arc.