| 一种分布式间隔单元的低成本准同步采样系统的研究 |
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| 引用本文： | 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. |
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| 作者姓名： | 王振华 于同伟 马志敏 李籽良 赵会彬 |
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| 作者单位： | 许继集团有限公司,河南许昌,461000;国网辽宁省电力有限公司电力科学研究院,沈阳,110006 |
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| 基金项目： | 国家电网公司总部科技项目资助“智能变电站配用二次装置通用平台关键技术研究”(5222LK17000Z) |
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| 摘 要： | 本文分析了当前10kV保护装置的模拟量采集方案，提出了一种低成本准同步采样系统。该系统采用V型采样插值法，利用AD7616芯片各输入通道间的灵活配置和高速转换，实现对模拟量的准同步采样。此方案采用ZYNQ平台，利用内部AXI总线实现AD数据的高速传输，极大的提高了数据的可靠性和实时性，保障了电网的安全稳定。
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| 关 键 词： | DTU 准同步采样 FPGA 突发模式 |
| 收稿时间： | 2018/5/11 0:00:00 |
| 修稿时间： | 2018/5/11 0:00:00 |
Research of the lowcost plesiochronous sampling system in Distribution Terminal Unit |
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| wangzhenhu,yutongwei,mazhimin,liziliang and zhaohuibin.Research of the lowcost plesiochronous sampling system in Distribution Terminal Unit[J].Electrical Measurement & Instrumentation,2019,56(15):132-136. |
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| Authors: | wangzhenhu yutongwei mazhimin liziliang and zhaohuibin |
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| Affiliation: | XJELECTRICCO. LTD,Electric Power Science Research Institute of State Grid Liaoning Electric Power Supply CO.LTD,XJELECTRICCO. LTD,Electric Power Science Research Institute of State Grid Liaoning Electric Power Supply CO.LTD,XJELECTRICCO. LTD |
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| Abstract: | 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. |
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| Keywords: | DTU Plesiochronous Sampling FPGA Burst Mode |
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