摘要
介绍TDM总线技术在高压直流输电控制保护设备的测量系统中的应用。以世界上第一条±800kV直流输电工程'云广工程'的应用为背景,介绍了工程中测量系统和控制系统的硬件配置及通讯链路的特点,说明了TMD总线技术的应用原理及TDM总线的性能,最后介绍了TMD总线的编码方式及报文结构。在高压直流输电控制保护系统中,TDM总线的应用,不但发挥了它原有的技术优势,还同时解决了多模块同步及发起和接收端延时固定的问题,为精确触发阀点火脉冲提供了可靠的保证。
It introduces the application of TDM bus technology in the measurement system of HVDC power transmission control and protection equipment. With background of the first ±800 kV DC line Yunnan-Guangdong Project, it firstly introduces the hardware configuration and communication line characters in measurement system and control system. Then, it explains the principle and performance of TDM technology. Lastly, it introduces coding pattern and frame of message of TDM bus. In HVDC power transmission control and protection system, TDM bus technology not only shows its tech advantages, but also solves the problems of synchronization of many boards and fixed delay between sender and receiver, which provides high dependability for trigger pulse of valves.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第23期238-240,共3页
Power System Protection and Control
关键词
TDM总线技术
高压直流输电
测量系统
多模块同步
延时固定
TDM bus technology
HVDC power transmission
measurement system
synchronization of many boards
fixed delay
