电力线载波通信信道建模技术综述

Power line communication (PLC) technology is an important communication method which had been widely used in power system. The power line channel modeling and carrier frequency optimization are significant to the realization of high-speed data transmission over the power line. This paper gives a brief introduction about the basic theories of signal transmission on power-line at first, and then an overview on power-line communication channel modeling methods which are classified according to the model parameters acquisition approaches is presented. The development process of each method is given and the advantages and disadvantages of each method are analyzed in detail. Finally, a channel model method of power line communication based on graph theory is proposed and its possibility to be applied to smart grid medium-voltage power-line communication is analyzed.