Research on Reliability Technology of Digital Integral Acquisition Unit

WANG Yu; XIN Mingyong; ZHANG Wei; MENG Lingwen; GAO Jipu; WANG Mian; LIU Bin; CHEN Dunhui

doi:10.13296/j.1001-1609.hva.2021.08.026

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Research on Reliability Technology of Digital Integral Acquisition Unit

更新时间：2025-04-26

- Research on Reliability Technology of Digital Integral Acquisition Unit
- High VoltageApparatus Vol. 57, Issue 8, Pages: 191-197(2021)
- 作者机构：
  
  1. 贵州电网有限责任公司电力科学研究院
  2. 江苏凌创电气自动化股份有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.08.026
  CLC： TM45;TM63
- Published：2021
- 稿件说明：
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WANG Yu, XIN Mingyong, ZHANG Wei, et al. Research on Reliability Technology of Digital Integral Acquisition Unit[J]. High voltageapparatus, 2021, 57(8): 191-197.
DOI：

WANG Yu, XIN Mingyong, ZHANG Wei, et al. Research on Reliability Technology of Digital Integral Acquisition Unit[J]. High voltageapparatus, 2021, 57(8): 191-197. DOI： 10.13296/j.1001-1609.hva.2021.08.026.

摘要

为提高电子式互感器的运行稳定性

针对采集单元模块在变电站现场易受干扰、积分后的暂态特性无法满足要求等问题

文中研究了一种高可靠性的采集单元实现方案。分析了数字积分式采集单元的工作原理与异常产生环节

提出了采样预警筛查、数字积分的动态扰动衰减、结构及硬件抗干扰设计等关键措施

试制了电流互感器的采集单元样机

并委托专业机构进行了检测。测试结果表明

采集单元具备良好的暂稳态信号传变特性和电磁兼容能力

可满足数字化变电站的工程应用需求。

Abstract

In view of problems such as the acquisition unit is susceptible to interference at substation site and the transient characteristics after integration cannot meet the requirements

a kind of highly reliable acquisition unit implementation scheme is studied in this paper in order to improve operation stability of electronic instrument transformer.The working principle and abnormal generation of the digital integral acquisition unit is analyzed.Some such key measures as sampling and early warning screening

dynamic disturbance attenuation with digital integration and anti-interference design of structure and hardware are proposed.The acquisition unit prototype of the current transformer is trial-produced and assigned to be tested by the professional organization.The test results show that the acquisition unit has good transient-steady signal transfer characteristics and electromagnetic compatibility capability

which can meet the engineering application requirements of digital substation.

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Related Institution

XJ Electric Technology Center

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School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology

华中科技大学电气与电子工程学院湖北武汉430074

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