Field Test Method and Equivalence Analysis of Delay Characteristics of DC Electronic Current Transformer-Reference-Cited by-同舟云学术

Field Test Method and Equivalence Analysis of Delay Characteristics of DC Electronic Current Transformer

Published:2023-07-31 Issue:15 Volume:16 Page:5727
ISSN:1996-1073
Container-title:Energies
language:en
Short-container-title:Energies

Author:

Zhu Mengmeng¹,Tang Hongda²,He Zhaolei³,Liao Yaohua¹,Tang Biao¹,Zhang Qunqun²,Shu Hongchun²,Deng Yaqi²,Zeng Fang²,Cao Pulin²

Affiliation:

1. Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650200, China

2. Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China

3. Measurement Verification Department of Measurement Center of Yunnan Power Grid Co., Ltd., Kunming 650200, China

Abstract

DC electronic current transformer is the data source of the system control and protection device, so its measurement delay has always been concerned. In this paper, the DC current transformer is modelled equivalently and the key factors affecting the delay of shunt and the remote module are analyzed. A field test method for the delay characteristics of the DC electronic current transformer is proposed. Moreover, a complex multi-state large current generator and integrated test system are developed. On the basis of the IEC 60044-8 standard transmission protocol, the accuracy of standard signal acquisition with the shunt is better than 0.2%. The maximum output current of the established testing system is 600 A. Based on the field test in an actual HVDC project, transient step and various frequency signal components are applied for analyzing.

Funder

Science and technology project of Yunnan Power Grid Co., Ltd.

Yunnan technological innovation talent training object project

Publisher

MDPI AG

Subject

Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction

Link

https://www.mdpi.com/1996-1073/16/15/5727/pdf

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