An extended EMC study of an electrical powertrain for transportation systems

Abstract

The change from conventional to electric drives in transportation systems is forced by the shortage of gasoline and the environment protection. Electric drive systems are a challenge for the manufacturers. The electrical powertrain can not only be exposed to interferences, it may also emit interferences into components and communication cables in the vicinity. These can be a high risk for the drive system and for the passengers, when the electric drive is used for human transport. This paper presents an EMC study of an electrical powertrain for transportation systems. A brief summary of the interferences at the unshielded high-voltage cable (HV-cable) is given. The analysis of the influence of position variation of the communication cable to the unshielded HV-cables is studied. Different cheap shielding variants are analysed and compared to full shielded HV-cables. Furthermore, different optimizations have been added to the test setup.