电力系统保护与控制Issue(10)：111-115,5.
智能变电站过程层交换机延时测量方案设计
Design of delay measurement switch in intelligent substation process level
刘井密 1李彦 1杨贵1
作者信息
- 1. 南京南瑞继保电气有限公司，江苏 南京 211100
- 折叠
摘要
Abstract
Constructing SMV network of intelligent substation process layer with switches has been becoming a fashion. This structure is convenient to share information among multiple devices, but it leads to uncertainty and indeterminacy in terms of time delay when transmitting in the network. This drawback requires a reliable time resource to realize synchronization, and the merging unit should have the ability of time keeping to a certain degree. To solve these problems, this paper gives a structure of switch based on FPGA aiming to measure the time delay of SMV packets transmission, and proposes a scheme of measuring and storing the time delay using the reserved bytes in IEC 61850-9-2 frame. FPGA realization and experiments justify the proposed structure and scheme of the time delay measurement.关键词
智能变电站/交换机/过程层/SMV(Sampled Measured Value)/IEC 61850-9-2/传输延时测量/FPGAKey words
intelligent substation/switch/process layer/sampled measured value (SMV)/IEC 61850-9-2/delay measurement/FPGA分类
信息技术与安全科学引用本文复制引用
刘井密,李彦,杨贵..智能变电站过程层交换机延时测量方案设计[J].电力系统保护与控制,2015,(10):111-115,5.
