王振华,于同伟,马志敏,李籽良,赵会彬.一种分布式间隔单元的低成本准同步采样系统的研究[J].电测与仪表,2019,56(15):132-136. wangzhenhua,yutongwei,mazhimin,liziliang,zhaohuibin.Research of the lowcost plesiochronous sampling system in Distribution Terminal Unit[J].Electrical Measurement & Instrumentation,2019,56(15):132-136.
一种分布式间隔单元的低成本准同步采样系统的研究
Research of the lowcost plesiochronous sampling system in Distribution Terminal Unit
This paper analyzes the analog acquisition system of the current 10 kV protective device, and presents a method of the lowcost plesiochronous sampling system in Distribution Terminal Unit. This system uses the V sampling interpolation method, and realizes the plesiochronous sampling of analog data bye using the flexible configuration and high-speed conversion between input channels of the AD7616 chip. This design, based ZYNQ platform, uses internal AXI bus to realize the high speed transmission. This design greatly improves the reliability and real-time of AD data and ensures the security and stability of the power grid.