étude éxpérimentale de l'influence des longueurs de câble sur les perturbations conduites d’un convertisseur dc/dc de type buck

Electric power performs functions more and more varied thanks to the generalization of the use of static converters. These converters are based on the use of switched semiconductor components that generate fast voltage (dv/dt) and current (di/dt) variations. This causes HF electromagnetic disturbances (EMRs) which must be minimized in order to comply with electromagnetic compatibility standards [1, 2, 3]. DC/DC converters are an important part of the conversion chain. They are widely used in connections to storage batteries, photovoltaic systems, wind turbines, hybrid systems and in automotive applications [4]. This work is devoted to the experimental analysis of the influence of the position of a DC/DC converter between a source and a load with regard to the measured EMC emissions measured on the source, as a function of the length of the cables converter and converter-load and the connection of their shield to ground.