Research on fault tracing method of traction drive control system

Fault propagation is a common occurrence in traction drive control systems. The propagation of faults among components creates difficulties in traceability. Therefore, this paper focuses on the traction transmission control system and proposes a fault tracing method based on fault propagation. First, establish a fault propagation model that includes spatiotemporal characteristics. Then, extract the fault characteristics and the time it takes for faults to propagate at various observation points throughout system operation. Finally, match the spatiotemporal characteristics of the corresponding observation points in the fault propagation model, so as to determine the fault type and location, allowing for fault traceability. The proposed method’s feasibility is verified using a system example. The effectiveness of the proposed method in the traction drive control system was verified through system examples, which can meet the requirements of rapid fault tracing and is effective for weak faults. © 2023, The Author(s).