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[期刊论文]

Parameter identification for equivalent circuit of transformer oil-paper insulation and effect of insulation condition on parameters

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author:

Zheng, J. (Zheng, J..) [1] | Jiang, X. (Jiang, X..) [2] | Cai, J. (Cai, J..) [3]

Indexed by:

Scopus PKU CSCD

Abstract:

Based on the eigenvalue measurements of return voltage, the fruit flying algorithm is adopted to calculate the equivalent circuit parameters of transformer oil-paper insulation, which are then applied in the simulation model to obtain the polarization spectrum of return voltage. It fits the measurements very well, verifying the correctness of calculated parameters. Seven transformers are divided into three groups according to their voltage level and capacity, their equivalent circuit parameters of oil-paper insulation are calculated and the effect of insulation condition on the parameters is analyzed. The analytical results show that, the transformer with better insulation has bigger insulation resistance, polarization resistance and maximum time constant. ©, 2015, Electric Power Automation Equipment Press. All right reserved.

Keyword:

Electric transformer insulation; Electric transformers; Fruit fly algorithm; Insulation; Models; Oil-paper insulation; Parameter identification; Return voltage

Community:

  • [ 1 ] [Zheng, J.]College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Jiang, X.]College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Cai, J.]College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China

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Source :

Electric Power Automation Equipment

ISSN: 1006-6047

Year: 2015

Issue: 8

Volume: 35

Page: 168-172

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 9

30 Days PV: 2

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