| Title |
Study on Very High-Rate Power Line Communications for Smart Grid |
| Authors |
최성수(Choi, Sung-Soo) ; 오휘명(Oh, Hui-Myoung) ; 김영선(Kim, Young-Sun) ; 김용화(Kim, Yong-Hwa) |
| DOI |
https://doi.org/10.5370/KIEE.2011.60.6.1255 |
| Keywords |
Smart grid ; Very high-rate Power Line Communications (VH-PLC) ; KS X 4600-1 |
| Abstract |
In this paper, we study on the reliability of Very High-rate Power Line Communication (VH-PLC) for Smart Grid, so that the resultant data rate is over 400Mbps at a physical layer. Firstly, reviewing the research trend of the PLC, we discuss the required techniques for supporting the Smart Grid. Considering a pre-specification with the value of several parameters, we investigate a multi-carrier modulation technique to overcome limitations of higher rate transmission under power line channel environments. Then, we propose a system specification of the VH-PLC in the sense of enhancing two features. One is resolving the problem of the co-existence of the deployed high-speed PLC according to the published standardization of KS X 4600-1 in Korea. The other is getting better performance on the grid adopting the diverse element techniques, such as multi-carrier modulation, a subcarrier utilization mode, a variable rate LDPC (Low Density Parity Check) code, and a time and frequency diversity technique. Further, a simulation tool, composed of an Event-Driven simulator and a Time-Driven simulator, is developed for the purpose of verifying the system performance and continuously cross-checking the test bench signal of the proposed VH-PLC system. |