|Table of Contents|

Design and application of automatic verification system forultra-high voltage current transformer(PDF)

《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

Issue:
2017年06期
Page:
730-
Research Field:
Publishing date:

Info

Title:
Design and application of automatic verification system forultra-high voltage current transformer
Author(s):
Xu Minrui1; 2; Zeng Jie3; Mu Xiaoxing1; 2; Li Zhixin1; 2; Chen Gang1; 2
1.State Grid Jiangsu Electric Power Company Research Institute,Nanjing 211103,China; 2.State Grid Key Laboratory of Electric Energy Measurement,Nanjing 210019,China; 3.State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing Univer
Keywords:
ultra-high voltage;  current transformers;  automatic verification systems;  gas-insulated switchgears;  intelligent power supplys;  large capacity current generators;  reactive power compensation devices
PACS:
TM452
DOI:
10.14177/j.cnki.32-1397n.2017.41.06.011
Abstract:
An automatic verification system for ultra-high voltage(UHV)gas-insulated switchgear(GIS)current transformer is researched to solve the onsite verification problem of UHV current transformers.The system mainly consists of an intelligent power supply,a large capacity current generator,a reactive power compensation device and a standard current transformer.The intelligent power supply has the functions such as power electronic power supply and electrical power supply series output,circuit parameter calculation,reactive power compensation control and error verification.The large capacity current generator is designed by the method of series and parallel connection of the primary winding.The multi-combination reactive power compensation device is designed using the parallel compensation of the primary and secondary side.This system passes the system test of provincial measurement institution and onsite verification of State Grid key UHV project current transformer.The results show that,the verification system realizes accurate measurement of primary circuit parameters of UHV GIS current transformers,electriferous automatic switching of reactive power compensation device for current generators and automatic error verification,and that ensures the accurate and quick positioning of 7 200 A high current verification point and 15 A small current verification point,and reduces the capacity requirements of the onsite power supply and the current generator.

References:

[1] JJG1021-2007,电力互感器[S].
[2]DL/T448-2016,电能计量装置技术管理规程[S].
[3]Lei Ertao,Yin Xianggen,Yu Chen,et al.A cascaded D-STATCOM integrated with a distribution transformer for medium-voltage reactive power compensation[J].Journal of Power Electronics,2017,17(2):522-532.
[4]吴良科,刘浩,岳长喜,等.GIS大电流互感器现场检定试验中的无功补偿[J].高电压技术,2010,36(6):1560-1565.
Wu Liangke,Liu Hao,Yue Changxi,et al.Reactive power compensation of on-site calibration test for current transformers[J].High Voltage Engineering,2010,36(6):1560-1565.
[5]Zhao Baishan,Li Wenhui.Research of comprehensive compensation of harmonics reactive current and DC bias in UHV power grid[J].International Journal of Hybrid Information Technology,2017,9(10):353-362.
[6]包玉树,胡永健,叶加星,等.基于电流互感器负荷误差外推法的校验技术研究[J].中国计量,2017,42(9):70-72.
Bao Yushu,Hu Yongjian,Ye Jiaxing,et al.Research on calibration technology of current transformer based on load error extrapolation[J].China Metrology,2017,42(9):70-72.
[7]Vandiver B.A revolution in current transformer testing[J].Powergrid International,2012,17(8):40-44.
[8]顾华,周珺,许震欢,等.GIS电流互感器现场校验新技术分析及应用探讨[J].机电信息,2014(36):98-100.
Gu Hua,Zhou Jun,Xu Zhenhuan,et al.Analysis and application of the new technology for GIS current transformer field calibration[J].Mechanical and Electrical Information,2014(36):98-100.
[9]Alkhazragi S,Alshamaa K.Cascaded H-bridge multilevel inverter using SPWM and MSPWM strategies[J].International Journal of Engineering Research and Applications,2017,7(6):14-20.
[10]张艳莉,费万民.基于重心重合原则的数字化多电平SPWM方法[J].南京理工大学学报,2010,34(3):299-302.
Zhang Yanli,Fei Wanmin.Digitalized multilevel SPWM method based on cg-superposition theorem[J].Journal of Nanjing University of Science and Technology,2010,34(3):299-302
[11]吴昊,苏卫民,顾红.基于非均匀快速傅氏变换的多站无源雷达成像算法[J].南京理工大学学报,2012,36(6):984-988.vWu Hao,Su Weimin,Gu Hong,et al.Passive multistatic radar imaging algorithm based on non-uniform fast Fourier transform method[J].Journal of Nanjing University of Science and Technology,2012,36(6):984-988.
[12]Wang Qi,Gao Tian.Research of SPWM algorithm based on equivalent area compensation[J].Advanced Materials Research,2012,562-564:2174-2177.
[13]万秋一,李士林,闫鑫,等.一种等面积法生成SPWM 波形的算法[J].核电子学与探测技术,2011,31(5):588-590.
Wan Qiuyi,Li Shilin,Yan Xin,et al.Realization based on sequential control the SPWM[J].Nuclear Electronics & Detection Technology,2011,31(5):588-590.

Memo

Memo:
-
Last Update: 2017-12-31