摘要
介绍了智能电网及AMI对新一代远程智能抄表系统所提出的新要求,通过对低压电力线载波信道特性的分析,以及对目前低速PLC调制技术性能局限性的分析,提出了采用新一代低压电力线载波通信技术——OFDM多载波调制,详细介绍了OFDM低压电力线载波调制原理、编码及接收机技术,并阐述了APLNET-iM的物理层设计、MAC层设计及专用芯片设计。
Based on the the new requirements of smart grid and AMI on automatic meter reading system, this paper analyses the limitations of low speed PLC modulation technologies, and points out that OFDM muti-carrier technology is the effective solution because of its inherent adaptation capability in power line ehannel conditions. It introduces the OFDM modulation principle, receiver technology and the design of APLNET-iM, an OFDM-based advanced power line networking technology for smart metering in China.
出处
《电力系统通信》
2009年第10期9-13,22,共6页
Telecommunications for Electric Power System
