Synchronization Test Technology for Line Merging Units Based on Voltage Following

CAO Dongyu; LI Zhenxing; PI Zhiyong; HU Cong; LI Zhenhua; ZHAO Ziyi

doi:10.13296/j.1001-1609.hva.2024.10.002

您当前的位置：

首页 >

文章列表页 >

Synchronization Test Technology for Line Merging Units Based on Voltage Following

The Key Technologies for Energy Conservation and Carbon Reduction in New Power Systems | 更新时间：2025-04-26

- Synchronization Test Technology for Line Merging Units Based on Voltage Following
- High Voltage Apparatus Vol. 60, Issue 10, Pages: 12-20(2024)
- 作者机构：
  
  1.三峡大学电气与新能源学院，湖北　宜昌　 443002
  2.国网湖北省电力公司荆门供电公司，湖北　荆门　 448001
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(52077120)
- DOI：10.13296/j.1001-1609.hva.2024.10.002
  CLC：
- Received：08 April 2024，
  
  Revised：15 June 2024，
  
  Published：16 October 2024
- 稿件说明：
移动端阅览
CAO Dongyu, LI Zhenxing, PI Zhiyong, et al. Synchronization Test Technology for Line Merging Units Based on Voltage Following[J]. High voltage apparatus, 2024, 60(10): 12-20.
DOI：

CAO Dongyu, LI Zhenxing, PI Zhiyong, et al. Synchronization Test Technology for Line Merging Units Based on Voltage Following[J]. High voltage apparatus, 2024, 60(10): 12-20. DOI： 10.13296/j.1001-1609.hva.2024.10.002.

摘要

合并单元采集传输数据信息的准确性决定智能变电站保护能否可靠动作，进而影响系统的安全运行。文中针对母线合并单元在线运行下校验线路合并单元的要求，提出基于电压跟随的线路合并单元同步性检验技术。通过设计同相跟随器生成幅值可调的电流信号，并经功率放大为电流校验提供测量信号，将测量反馈作为电流校验基准；同时，利用Prony算法计算电压互感器的母线电压二次幅值与相位，将其作为电压校验基准。为验证同步性检验技术的可行性，设计了基于RTDS的实验室检验平台测试，结果表明该技术大幅缩减了合并单元同步性检验调试流程，证明了该方案的合理性。

Abstract

The accuracy of the data information collected and transmitted by the merging unit determines whether the smart substation protection can operate reliably

which in turn affects safe operation of the system. In view of the requirement of verifying the line merging unit under online operation of the bus merging unit

a synchronization test technology for line merging units based on voltage following is proposed in this paper. By designing an in-phase follower

a current signal with adjustable amplitude is generated

amplified into current calibration via power so to provide the measurement signal and the measurement feedback is taken as the current calibration benchmark. At the same time

the Prony algorithm is used to calculate the secondary amplitude of the bus voltage and phase

which is used as the voltage calibration reference. For verifying the feasibility of the synchronization test technology

a laboratory test platform test based on RTDS is designed. The results show that this technology greatly reduced the synchronization test and debugging process of the merging unit

and the rationality of the solution is proved.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Realization of the Digital Interface in Electronic Instrument Transformer Based on FPGA & DSP

Method for Designing and Implementing Merging Unit Based on Embedded Processor on FPGA

Electronic Transformer Digital Output Analyzer Based on LabWindows/CVI

Research on Communication between Merging Unit and Secondary Devices Based on Standard IEC 61850

Differential Protection of Optical-fiber Line Based on Electronic Current Transformer

Related Author

XIAO Xia

XIANG Ke

XU Yan

CHEN Sheng2

LI Dong-jiang1

ZHENG Le1

ZHANG Yan

LI Hong-bin

Related Institution

华中科技大学电气与电子工程学院湖北武汉430074

Huazhong University of Science and Technology

Jiangsu Nantong Power Supply Company

Department of Computer,North China Electric Power University

School of Electrical and Electronic Engineering,Huazhong University of Science and Technology

⁰