Online: Measurement methods for the frequency range 2-150 kHz (Supraharmonics)

11 November 2020 at 10:00 – 12:00 UTC, join for free via Skype

The growth of power converters in equipment such as renewable generation and electric vehicle chargers has led to a build-up of electromagnetic interference (EMI) in the 2-150 kHz range. These frequencies are above the traditional power quality range, which is used to regulate emissions of equipment connected to the public electricity supply. The lack of emission limits in the past has resulted in increased EMI related malfunction of mass market goods as well as premature aging of connected consumer and professional equipment. The lack of measurement infrastructure in the 2-150 kHz range is hindering the ability to regulate emission in this frequency range and this workshop will explore the challenges and progress toward a framework for PQ measurements. 

The project

EMPIR project Grid measurements of 2 kHz - 150 kHz harmonics to support normative emission limits for mass-market electrical goods (18NRM05, SupraEMI) was initiated to define a new normative measurement method for the 2-150kHz frequency range and associated R&D.

The workshop

This workshop will present outcomes and results at the halfway point in this three-year project.


  • The problem of 2-150kHz conducted EMI in public electricity networks
    Paul Wright NPL (30mins)
  • Discussion (10 mins)
  • Characterisation of different types of emission in the range 2-150kHz
    David de la Vega UPV/EHU (15 mins)
  • A review and comparison of published 2-150kHz measurement methods
    Deborah Ritzmann NPL (20 min)
  • Adapting the CISPR 16 standard for power quality measurements
    Stefano Lodetti NPL (20 min)
  • CISPR 16 method: grid application and field experience
    Victor Khokhlov TUD (20 mins)
  • Discussion (10 mins)
  • Mains impedance measurements and defining Artificial Mains Networks for 2-150kHz EMC testing
    Victor Khokhlov TUD (20 min)
  • Next steps and final discussion (10 mins)



To register, please use the contact form on the project website and you will be sent an invitation with joining instructions.

Contact: Paul Wright

This EMPIR project is co-funded by the European Union's Horizon 2020 research and innovation programme and the EMPIR Participating States