Comparison of Measurement Methods for the Frequency Range 2–150 kHz (Supraharmonics) Based on the Present Standards Framework

Advances in power electronics, increasing share of renewables in the energy system and e-mobility cause an increase of disturbances in the frequency range 2-150 kHz, also known as supraharmonics. A rigorous, credible and agreed measurement framework is essential to evaluate electromagnetic compatibility (EMC) in this frequency range. While a normative method exists for measuring equipment emission in the laboratory, no normative method exists yet for the measurement of supraharmonic disturbance levels in the grid. The aim of this research is a detailed comparison of potential measurement methods derived from existing standards IEC 61000-4-7, IEC 61000-4-30, CISPR 16-1-1 and a critical assessment of their suitability for disturbance measurements in grid applications. Based on a comprehensive set of synthetic signals and real measurements from laboratory and field, this article studies the ability of the methods to assess the typical characteristics of supraharmonic emission with relevance to EMC coordination. It presents the benefits and drawbacks of the existing measurement methods and discusses the suitability of possible modifications for grid compliance assessment. The results and recommendations intend to be an input for the present activities of IEC SC 77A WG 9 to define a normative method for the measurement of supraharmonic disturbance levels to be included in the next edition of IEC 61000-4-30.

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Addressing Challenging Issues of Grids with High Penetration of Grid Connected Power Converters: Towards Future and Smart Grids

Submission Deadline: 31 January 2020

IEEE Access invites manuscript submissions in the area of Addressing Challenging Issues of Grids with High Penetration of Grid Connected Power Converters: Towards Future and Smart Grids.

Penetration of grid connected renewable energy systems and smart loads based on high frequency power electronics converters (such as solar inverters, wind turbines and variable speed motor drive systems) has been increasing in low and medium voltage power networks. Power electronic converters have superior features of controllability, sustainability, and high efficiency, but at the same time also present a number of challenges such as low and high frequency harmonics (2-9 kHz and 9-150 kHz), and other disturbances which have been reported in distribution networks around the world. Similar issues have been identified involving significant high frequency harmonic resonances in wind farms, connected to low and medium voltage grids.

The recent development of Wide Band-Gap (WBG) semiconductor devices and their increasing acceptance in power electronics converters further accelerates such issues due to their ability to operate at higher switching frequencies. This new shift in harmonics emission from low frequency (0-2kHz) to higher frequency (2-150kHz) ranges will result in new power quality challenges in current and future grids.

In view of the increasing attention and effort directed toward power quality in future and smart grids, this Special Section in IEEE Access aims to present the latest research and industry practices on this topic.

The topics of interest include, but are not limited to:

  • Technical challenges in dealing with penetration of renewable energy systems: stiff and weak grids
  • Power Quality Problems and Countermeasures in Microgrids
  • Measurements of LV network impedance – historical data and LV network impedance in the range from 2 kHz up to 9 kHz
  • Investigation of the resonance at high frequency, implementation of mitigation and verification
  • Power quality modeling and disturbance assessment up to 150 kHz in AC/DC system
  • High frequencies measurement method
  • Development of high frequency harmonic meter and three-phase harmonic power-system analysis
  • Impact of high frequency harmonics on smart energy meter and communication system
  • Low inertia grids and management of bi-directional power flows
  • Addressing the impact of inverter based generation on fault-tolerance and grid stability to the bulk power system
  • Impact of low and high frequency harmonics on grid infrastructures such as cables, transformers and capacitors
  • Immunity and emission issues of high frequency harmonics in low voltage distribution networks


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Associate Editor:  Dinesh Kumar, Danfoss Drives A/S, Denmark

Guest Editors:

    1. Firuz Zare, The University of Queensland, Brisbane, Australia
    2. Frede Blaabjerg, Aalborg University, Denmark
    3. Akshay Kumar Rathore, Concordia University, Canada
    4. Yang Xavier Xianjun, EDF R&D, France
    5. Negareh Ghasemi, The University of Queensland, Brisbane, Australia
    6. Bharat Singh Rajpurohit, Indian Institute of Technology (IIT) Mandi, India


Relevant IEEE Access Special Sections:

  1. Artificial Intelligence Technologies for Electric Power Systems
  2. Emerging Technologies for Energy Internet
  3. Big Data Technology and Applications in Intelligent Transportation

IEEE Access Editor-in-Chief:
  Prof. Derek Abbott, University of Adelaide

Article submission: Contact Associate Editor and submit manuscript to:

For inquiries regarding this Special Section, please contact: