Immunity Assessment of Household Appliances in the Frequency Range from 2 to 150 kHz

Abstract

Advances in power electronics, increasing share of renewables in the energy system and e-mobility cause an increase of disturbances in the frequency range from 2 to 150 kHz, also known as supraharmonics. This emission usually does not propagate very far, but can disturb other end user equipment, which can result in short-term effects (equipment malfunctions, audible noise or light flicker) as well as long-term effects (lifetime reduction due to additional thermal stress). This paper summarizes the results of a comprehensive immunity assessment of more than 50 household appliances with respect to the above mentioned disturbance effects. The results shall serve as a contribution to the ongoing standardization activities in the frequency range 2-150 kHz.