Investigation of conducted disturbance from driving system in fuel cell bus

Full-scale evaluating and improving the EMC (Electromagnetic Compatibility) of vehicle is the necessary insurance for the safety of the vehicle. This paper presents some of the research results on the conducted disturbance from the driving system in a fuel cell city bus. First, the distribution of the disturbance source in the driving system surveyed by measurement is introduced. Then, its generating mechanics are discussed. The high-frequency circuit models of the fuel cell, the inverter, and the AC motor are set up. The conductive disturbance propagation along cable is analyzed by numerical simulation. Finally, measures to restrain the disturbance propagation are also discussed.