Resumen
The proposed enhanced single-probe method can be used to measure the impedance of energized devices or systems, which is usually not possible with traditional direct measurement methods. The online impedance measure is helpful in filter design/selection, system monitoring, and fault diagnosis. In addition, the obtained online impedances allow the prediction of converter-generated electromagnetic interference in both DC, AC single-phase, and AC three-phase systems, as well as estimation of the insertion loss of EMI filters, which is beneficial to filter assessment and design.