Measurement unit for wireless EV charging

Stationary inductive power transfer (IPT) offers the potential for contactless charging of electric vehicles parked at a charging station.

Image showing an electric car driving down an empty road

Coordinator: Mauro Zucca

Stationary inductive power transfer (IPT) offers the potential for contactless charging of electric vehicles parked at a charging station. In order to assess performance and efficiency measurements, systems are required to accurately measure the DC power and the AC power due to the ripple induced by the AC/DC power conversion.

A new measurement system called Power Measurement Unit (PwMU) for laboratory and in-field measurements, which improves the ease and ability to characterise IPT charging stations both in field and in laboratory environment, was realised in the project. To calibrate this measurement system, a power standard suitable for measuring electrical powers up to 200 kW, having the characteristics of the power transmitted to EV batteries, not currently available in Europe was realised. Such a power standard is needed for measuring active and reactive power in IPT systems with high accuracy (maximum uncertainty of 10-3 relative) for DC current affected by AC power ripple and harmonics up to 150 kHz. This project went beyond the state of the art by also developing a facility for such a power standard and IPT system, which is now ready.

For more information, see the project webpage >>

Parent project
Short Name:MICEV,Project Number:16ENG08

Participating Euramet NMIs and DIs

INRIM (Italy)

NPL (United Kingdom)

PTB (Germany)

RISE (Sweden)

Other participants

Aalto-korkeakoulusäätiö sr (Finland)
Centre National de la Recherche Scientifique (France)
Fundacion Circe Centro de investigacion de recursos y consumos energeticos (Spain)
Politecnico di Torino (Italy)
Schmid & Partner Engineering AG (Switzerland)
Technische Universiteit Delft (Netherlands)
TÜV SÜD AG (Germany)
TÜV SÜD Product Service GmbH (Germany)
Università degli Studi di Cassino e del Lazio Meridionale (Italy)
Università degli Studi di Salerno (Italy)

Information
Type
EMPIR
Field
Energy
Project type
Joint Research Project
Status
completed
Call
2016
Duration
2017-2021