Smarter concepts for future EMI standards

Abstract

Conflicts of interest in determining permitted levels of EMI of electronic products between different standard committees result in a deadlock. In this context, the conventional approach used in defining the levels is not sufficient anymore to overcome contemporary EMI cases due to technology which rapidly advances. On the other hand, customers need to be protected by EMI standards which must adapt to this change. In the case of smart grids, the challenge is how to manage coexistence between the advanced electronics and communication services without the need to first eliminate interfering signals to allow power line telecommunication (PLT) which is at the same time an interfering signal. To reach this goal, we propose a novel approach for achieving EMC (EM compatibility) by using limits in both the time and the frequency domain while considering PLT as a boundary condition instead of using conventional EMI standards which are based on frequency domain limits only.