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Impedance Measurement of 0.4kV Power Supply Line in the Station Area Based on the Smart Energy Meter

Published: 17 May 2021 Publication History

Abstract

Develop a monitoring and management system based on a cloud platform, and finally implement related applications such as abnormal monitoring of the electric energy meter wiring process, wiring fault diagnosis, line aging assessment, and power outage warning analysis on the cloud platform, which can promptly warn the occurrence of power outages and comprehensively improve high-quality power supply services Level. Therefore, this paper proposes a method for phase line and neutral line impedance estimation of 0.4kV low voltage distribution network based on intelligent electricity meters. In this paper, the voltage of each sequence, current of each sequence, and information of complex power of each sequence of each node are extracted by intelligent electricity meter, and then the measurement of line impedance is completed piecewise. Finally, the impedance measurement model of the 0.4kV low-voltage distribution network was built. The simulation verification of the line impedance measurement was completed through the effective cooperation with the high-precision and high-synchronous sampling smart electricity meter supporting the impedance measurement and the acquisition terminal supporting the of the impedance measurement. The simulation results show that the line impedance measurement error is small, and the prediction of line loss and impedance trend can be completed effectively.

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      cover image ACM Other conferences
      ICITEE '20: Proceedings of the 3rd International Conference on Information Technologies and Electrical Engineering
      December 2020
      687 pages
      ISBN:9781450388665
      DOI:10.1145/3452940
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Published: 17 May 2021

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      Author Tags

      1. Edge calculation
      2. Intelligent diagnosis
      3. Intelligent electric energy meter
      4. Line impedance measurement

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      • STATE GRID Corporation of China

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