Electric grid measurements

Only equipment which abides by regulations for electromagnetic compatibility (EMC) are typically allowed to connect to the electric grid. One part of the EMC directive relates to flicker and harmonics caused by the appliances. Harmonics are typically caused by high power electronics typically found in the main power supply of the equipment. WiCh investigated Evatran’s L2 inductive chargers’ and found them to cause significant harmonics and thereby requires further investigation by the grid owner prior to connecting to the grid.

Efficiency measurement

To get as little energy loss as possible on the energy transfer a high efficiency is desired. In the Wich project Test Site Sweden at Lindholmen Science Park has measured the efficiency of the inductive systems used in Wich. The purpose of the measurements was to investigate how well the wireless charging transfers energy to the car and how this varies with the distance between the car and the coil at the ground.

WiCh i Visby under Almedalsveckan

Under Almedalsveckan den 30 juni visade WiCh upp en av sina trådlöst laddade elbilar. En medieträff hölls där bland andra (från vänster) Tommy Fransson, forskare på Viktoria Swedish ICT, Karl Bergman, utvecklingschef på Vattenfall, Katarina Luhr, miljöborgarråd i Stockholms stad, Suzanne Andersson, chef för avdelningen strategisk planering på Trafikkontoret i Göteborgs stad, …

Invigning av Europas första trådlöst laddade elbilar 28-29 maj

Den 28 och 29 maj kommer det hållas invigning av elbilarna i WiCh-projektet, vilka är Europas första trådlöst laddade elbilar som kommer att köras av vanliga användare i Stockholm, Göteborg och Uppsala under 2015-2016. Det är projektparterna Stockholms stad, Gatubolaget i Göteborg, Vattenfall, Test Site Sweden på Lindholmen Science Park, Strålsäkerhetsmyndigheten …