Health diagnosis strategies for insulation status of traction motors
Firstly,a Simulink simulation model was established for two typical traction inverter main circuits of rolling stocks.The leakage current generated by remanence of the traction motor during insulation failure was used as the characteristic electrical parameter to explore a method for online insulation health diagnosis.The feasibility of the diagnostic strategy was verified through simulation.Through building an onboard PHM board-level system with ZynqTM UltraScale+multi-core processor as the core,the effectiveness of the diagnostic strategy was verified experimentally.