Power2EMC – Reduce Emissions in Electric Vehicles through Active Filters and Active Gate Drivers

Power electronic systems, such as drive inverters, on-board chargers, and DC/DC converters, together with batteries, form the heart of electric vehicles. New semiconductors increase the attractiveness of electric vehicles (EVs) due to lower losses, but also generate higher electromagnetic interference (EMI) due to faster switching speeds. At the same time, components are interference-sensitive, especially in highly automated vehicles. Currently, this conflict of objectives can only be resolved by using increasingly heavy and bulky EMI countermeasures. The goal of this project is to significantly reduce the weight, installation space, and ultimately the costs of EMI countermeasures in EVs, while also increasing efficiency. This is to be achieved through two innovative measures. Firstly, adaptively adjusted, active gate drivers will to intervene directly at the source of interference. Secondly, remaining residual interference is to be eliminated through active filters with adaptively synthesized compensation signals.