摘要
介绍了基于10kV电力线载波通信的馈线自动化系统的网络结构。阐述了基于ARM7处理器的馈线终端单元(FTU)硬件平台的设计方案,详细介绍了各个模块功能,其中,载波通信模块能有效应对信道的恶劣传输特性。软件设计采用了嵌入式实时操作系统μC/OS-Ⅱ,能够实现继电保护、电量采集、载波通信、无线遥控等功能。鉴于目前还没有适用于配电网载波信道的通信协议,提出了基于有限状态机的通信协议设计方案,在IEC870-5-101协议的基础上实现了灵活、可靠的中继通信。现场运行表明,系统稳定可靠,具有较高的实用价值。
A network structure of the feeder automation system based on 10 kV power line carrier communication is presented. The design scheme for the hardware platform of feeder terminal unit （FTU） based on ARM7 processor is illustrated,and the functions of modules in the platform are described in detail. In particular,the carrier communication module can cope with the terrible transmission characteristics. The μC/OS-Ⅱ embedded real-time operation system is adopted in the software design scheme to perform relay protection,data acquisition,carrier communication,and wireless remote control. As no appropriate communication protocols are at present available for distribution network carrier channels,by taking into account the characteristics of the IEC 870-5-101 protocol,a communication protocol design scheme is put forward based on the finite state machine,with flexible,reliable relay communication realized. Field application shows that the proposed feeder automation system is of fairly high practical value for its stability and reliability.
出处
《电力系统自动化》
EI
CSCD
北大核心
2010年第10期105-108,共4页
Automation of Electric Power Systems
基金
华北电力大学青年教师科研基金资助项目(200711007)
