摘要
未来的智能电网是电力和通信架构的集合。首先介绍了智能电网中电力线高速数据通信模式,然后在对电力线高速数据通信调制方案进行了对比和分析,研究如何采用正交频分复用调制方式通过低压电力线接入网络的可行性,最后针对低压电力线通信中存在的严重符号间干扰ISI,提出采用加入保护间隔、加入循环前缀、循环前缀和自适应均衡相结合的三种解决方案。
The future smart grid is the integration of electric power and communication.First,the paper introduces the high-speed data communication mode of power lines in smart grid.Then high-speed data communications modulation schemes are compared and analyzed as well as the feasibility of accessing low-voltage power line to network by orthogonal frequency division multiplexing modulation scheme is Presented.Finally,three solutions are proposed for ISI interference：adding guard interval,using cyclic prefix and combining cyclic prefix and adaptive equalization.
出处
《江西电力》
2010年第3期6-9,共4页
Jiangxi Electric Power
关键词
智能电网
电力线通信
正交频分复用
频率选择性衰落
自适应均衡
smart grid
power line communication
orthogonal frequency division multiplexing
frequency selective fading
adaptive equalization
