Title: Required changes in emission standards for high-frequency noise in power systems

Authors: C.M. Lundmark, E.O.A. Larsson, M.H.J. Bollen

Addresses: Lulea University of Technology, EMC on Site, 931 87 Skelleftea, Sweden. ' Lulea University of Technology, EMC on Site, 931 87 Skelleftea, Sweden. ' Lulea University of Technology, EMC on Site, 931 87 Skelleftea, Sweden and STRI AB, 771 80 Ludvika, Sweden

Abstract: This paper discusses some recent developments that make the existing standards on the emission of high-frequency noise in power systems need to be reconsidered. It is shown that it is possible for an equipment to remain below the emission limits while at the same time the disturbance level increases beyond what was intended by the standard document. Further, the change from analog to digital communication and the use of communication via the power system, make that the permitted disturbance levels need to be reconsidered. This paper also contains an example of measured high-frequency noise and proposes a framework for re-coordination of emission and immunity levels.

Keywords: electromagnetic compatibility; power quality; conducted disturbances; power quality; EMC standards; emission standards; high-frequency noise; power systems; emission limits.

DOI: 10.1504/IJETP.2006.008550

International Journal of Energy Technology and Policy, 2006 Vol.4 No.1/2, pp.19 - 36

Available online: 29 Dec 2005

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