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A digital zero-phase filter for measuring high frequency emissions (supraharmonics) in electrical distribution networks

Conference Paper


Abstract


  • With the high penetration of power electronic interfaces and the increased use of power line carrier communication, high frequency (HF) emissions (supraharmonics) in the range of 2-150 kHz are emerging as a new power quality issue in distribution networks. Both IEC 61000-4-7 and IEC 61000-4-30 recommend the use of a high pass (HP) filter during measurement/analysis of these emissions. However, the filters used so far in HF measurements have non-linear phase characteristics making phase details unsuitable for further analysis. As a solution, this paper proposes a digital, offline, zero-phase HP filter having near ideal magnitude characteristics and a zero phase response.

Publication Date


  • 2018

Citation


  • Darmawardana, D., Perera, S., Robinson, D., Meyer, J., Klatt, M., & Jayatunga, U. (2018). A digital zero-phase filter for measuring high frequency emissions (supraharmonics) in electrical distribution networks. In Australasian Universities Power Engineering Conference, AUPEC 2018. doi:10.1109/AUPEC.2018.8757988

Scopus Eid


  • 2-s2.0-85069526000

Web Of Science Accession Number


Abstract


  • With the high penetration of power electronic interfaces and the increased use of power line carrier communication, high frequency (HF) emissions (supraharmonics) in the range of 2-150 kHz are emerging as a new power quality issue in distribution networks. Both IEC 61000-4-7 and IEC 61000-4-30 recommend the use of a high pass (HP) filter during measurement/analysis of these emissions. However, the filters used so far in HF measurements have non-linear phase characteristics making phase details unsuitable for further analysis. As a solution, this paper proposes a digital, offline, zero-phase HP filter having near ideal magnitude characteristics and a zero phase response.

Publication Date


  • 2018

Citation


  • Darmawardana, D., Perera, S., Robinson, D., Meyer, J., Klatt, M., & Jayatunga, U. (2018). A digital zero-phase filter for measuring high frequency emissions (supraharmonics) in electrical distribution networks. In Australasian Universities Power Engineering Conference, AUPEC 2018. doi:10.1109/AUPEC.2018.8757988

Scopus Eid


  • 2-s2.0-85069526000

Web Of Science Accession Number