Conducted interference immunity test to high-speed power line communication system

Abstract

In this paper, we calculated the immunity characteristics of PLC system to the conducted interference wave, from the aspect of PHY rate (physical layer data rate) by using MATLAB/Simulink, and compared with measurement results. As the results, it is revealed that the PHY rate of PLC modem can be calculated by using MATLAB/Simulink as well as the measurement one even when the narrowband interference signal is impressed through the power line. In addition, we can confirm by using MATLAB/Simulink that the PHY rate normalized by the maximum value increases by about 20% by inserting the notch when impressing the interference signal in the notch band and C/I is improved by 10~15dB by inserting the notch.