电器与能效管理技术 ›› 2020, Vol. 0 ›› Issue (12): 74-79.doi: 10.16628/j.cnki.2095-8188.2020.12.013

• 检测与试验 • 上一篇    下一篇

基于同步差分信号采样的计量远程校验装置优化设计

杨菊芳1, 崔勇2, 姬德森3   

  1. 1.国网南昌青山湖供电分公司,江西 南昌 330029
    2.三峡大学 经济与管理学院,湖北 宜昌 443002
    3.国网江西省电力科学院 计量中心,江西 南昌 330096
  • 收稿日期:2020-09-27 出版日期:2020-12-30 发布日期:2021-01-05
  • 作者简介:杨菊芳(1985—),女,工程师,主要从事电力营销管理工作。|崔 勇(1978—),男,工程师,主要从事电力系统优化、能源经济以及电力市场研究。|姬德森(1987—),男,高级工程师,主要从事电力计量技术管理工作。
  • 基金资助:
    *国网河南省电力公司群众创新项目(SDHS2018012)

Optimum Design of Remote Calibration Device for Metrology Based on Synchronized Differential Signal Sampling

YANG Jufang1, CUI Yong2, JI Desen3   

  1. 1. Qingshanhu District Power Supply Branch Office of State Grid Jiangxi Electric Power Company,Nanchang 330029,China
    2. School of Economics and Management,Three Gorges University,Yichang 443002, China
    3. Metrology Center,State Grid Jiangxi Electric Power Science Academy,Nanchang 330096,China
  • Received:2020-09-27 Online:2020-12-30 Published:2021-01-05

摘要:

针对计量装置在线校验监测可靠性和精准性的问题,将数字总线的同步采样技术应用到计量装置状态监测系统,设计了基于数字总线的PT/CT二次侧采集终端、线路切换终端、线路控制箱等模块;通过改变计量装置在线状态监测采样模式,不但可以实现远程校验的精确性,而且可解决原有应用存在的施工成本高、布线复杂的难题,同时可为数字总线同步采样技术融入智能变电站的一体化状态监测提供研究基础,以及为计量装置的状态监测技术进一步规范化提供参考依据。

关键词: 在线校验监测, 同步采样, 计量装置, 状态监测

Abstract:

Aiming at the problem of reliability and precision of on-line calibration monitoring of metering device,this paper applies the synchronous sampling technology of digital bus to the condition monitoring system of metering device,and designed the modules of PT/CT two-side acquisition terminal,line switching terminal,line control box and so on based on digital bus.By changing the on-line condition monitoring sampling mode of metering device,it can not only realize the accuracy of remote calibration,but also solve the difficult problem of high construction cost and complicated wiring in the original application.This study can provide a research basis for the integration of digital bus synchronous sampling technology into the integrated state monitoring of intelligent substation,and can also provide reference for the further standardization of the condition monitoring technology of metering device.

Key words: on-line condition monitoring, synchronous sampling, metering device, condition monitoring

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