An Improved Design for Transmission Line Busbar EMI Filter

摘要

The transmission line busbar filter is a good choicefor a high-density EMI containment solution. This paperpresents a study of the application of a transmission-line busbarfilter in a motor drive system. To examine the potentialimprovement for busbar filters, low-frequency attenuation andbasic modeling of busbar filters in a motor drive are studied.Based on the knowledge gained from the modeling, an improvedbusbar filter is proposed and fabricated. Experimental resultsshow a significant improvement on busbar filter attenuation.