Static IPT. A power standard suitable for measuring electrical powers up to
200 kW, having the characteristics of the power transmitted to EV batteries, is not currently available in Europe. In the case of DC current affected by AC power ripple and harmonics up to 150 kHz, such a power standard will serve as a basis for measuring active and reactive power in IPT systems with high accuracy (maximum uncertainty of one part per thousand relative). One output of this project is to build a facility, allowing manufacturers of sensors and power measurement technology to also have their instruments calibrated under realistic conditions in this frequency range. The behaviour and efficiency of the IPT system will be preliminary estimated through a new model-based approach for the calculation of losses, especially in converters, which is based on the convergence of different modelling approaches validated by measurements.
Dynamic IPT. In dynamic inductive charging no standards have been established and currently it is arduous to define a clear picture of the characteristics of the electrical parameters to be measured. The project aims to cover this gap. A modelling study has metrological relevance in that it may provide elements for the extension of the results of this project in the near future, for the realisation of a low uncertainty (one part per thousand relative) measurement systems in DIPT stations.
Magnetic field exposure. Little information is publicly available reporting results for the assessment of electric vehicle IPT systems from either modelling or measurements. Whilst manufacturers have modelled their electric vehicle designs, these contain proprietary information and are not publicly available for the development of standards for safety assessment. The project will provide validated and comprehensive computer simulations and measurements of human exposure to EV IPT systems, and defined test protocols for field surveys and computational dosimetry for EV IPT systems (static and dynamic) that will form the basis of future standards for IPT stations. This project will also go beyond this state-of-the art by providing the required traceability for magnetic field sensors and gradiometers for sine wave and distorted waveforms.