New normative method for supraharmonics (2-150 kHz) measurements

<p>The increase in the use of power convertors used in renewables and storage, as well as mass market electrical products, have led to an increase in conducted interference in the 2-150kHz frequency range.</p>

Image of Electromagnetic Compatibility measurements

Coordinator: Paul Wright

 

The increase in the use of power convertors used in renewables and storage, as well as mass market electrical products, have led to an increase in conducted interference in the 2-150kHz frequency range.  Traditionally, this range of frequencies has been largely unmeasured and unregulated, but the build-up of interference is now a concern as it can cause malfunction or degradation of other equipment connected to the electricity supply.

A new method to measure non-stationary currents and voltages in the range 2‑150 kHz in electricity networks is developed by the SupraEMI project. There is a particular requirement that the new method is suitable for inclusion in a future international standard and therefore must be acceptable to industry by being compatible with existing methods, in particular laboratory measurements using CISPR16‑1‑1 quasi-peak and average detector receivers. The new method must be computationally efficient so that measurements can be performed in real time in existing Power Quality (PQ) analyser instruments.

The core of the new normative method is new algorithms and associated software.  Test procedures and performance metrics for the algorithms are developed to ensure that in the short-term existing commercial PQ analysers can be retrofitted to incorporate the new methods.  Documentation and specification of all aspects of the hardware and algorithms are produced, such that they can be implemented as a new normative method in future editions of IEC 61000- 4-30.  Test procedures ensure compliant implementation of the new method.  The grid measurement system is compared against the CISPR 16 laboratory method and is suitable for use in low voltage network measurement campaigns.

For more information, see the project webpage >>

 

Parent project
Short Name:SupraEMI,Project Number:18NRM05

Participating Euramet NMIs and DIs

LNE (France)

METAS (Switzerland)

NPL (United Kingdom)

VSL (Netherlands)

Other participants

Technische Universität Dresden (Germany)
Universidad del Pais Vasco / Euskal Herriko Unibertsitatea (Spain)
Università degli studi della Campania Luigi Vanvitelli (Italy)

Information
Type
EMPIR
Field
Normative
Project type
Joint Research Project
Status
completed
Call
2018
Duration
2019-2022