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Automotive power electronic future - from an EMC perspective

Publiceringsår: 2006
Språk: Engelska
Sidor: 609-613
Publikation/Tidskrift/Serie: 2006 International Symposium on Power Electronics, Electrical Drives, Automation and Motion
Dokumenttyp: Konferensbidrag
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.


One way to lower the fuel consumption in future vehicles is to replace mechanically driven systems by electrical. The drawback with this solution is the increasing number of electrical loads, which creates more electromagnetic emissions that could disturb the surrounding environment. Many of the electrically driven loads are controlled by pulse width modulation, which could be a source of electromagnetic interference. In this paper, different solutions are tested with the intention to decrease the disturbances from a pulse width modulated system. The proposed methods do not require any extra components or costs, and implies altering the switching frequency and the frequency content of the voltage pulses from the system. It is shown that both a randomly varying switching frequency and an increase in rise and fall times for the voltage pulses are feasible ways to decrease the conducted emissions from a pulse width modulated system


  • Other Electrical Engineering, Electronic Engineering, Information Engineering
  • pulse width modulation
  • randomly varying switching frequency
  • electromagnetic emissions
  • mechanically driven systems
  • fuel consumption
  • automotive power electronics
  • EMC


2006 International Symposium on Power Electronics, Electrical Drives, Automation and Motion
  • ISBN: 1-4244-0194-1

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