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Author:

Chen, Yu (Chen, Yu.) | Rehman, Attiq Ur (Rehman, Attiq Ur.) | Zhao, Yihan (Zhao, Yihan.) | Wang, Lulu (Wang, Lulu.) | Wang, Shuang (Wang, Shuang.) | Zhang, Min (Zhang, Min.) | Zhao, Yong (Zhao, Yong.) | Cheng, Yonghong (Cheng, Yonghong.) (Scholars:成永红) | Tanaka, Toshikatsu (Tanaka, Toshikatsu.)

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Abstract:

Inter-turn short circuit fault (ITSCF) can be a great threat for the safety and effectiveness of the generator. In this paper, a simulation model with the experimental platform is established to diagnose the ITSCF in stator windings. A simulation model based on the Finite Element Method (FEM) is designed in ANSYS. Stator current is used for calculating the Root-Mean-Square (RMS) value, phase difference, symmetrical components, Park's vector trajectory's and Total Harmonic Distortion (THD). It was found that when ITSCF happened, three phase currents in stator is no longer symmetrical. The ratio of negative to positive sequence of current raises from 0.40 to 14.18 in simulation and 0.52 to 19.89 in the experiment from normal condition to 7 turns shorted. The same trend was seen in Park's vector trajectory analysis where the eccentricity raises from 0.03 to 0.65 in simulation and 0.14 to 0.75 in the experiment. Phase difference of the three phases is at 120° degree deviation as the ITSCF occurs in stator winding. THD also increased with the increase in the fault level. The results show a good consistency of simulation with experimental results. It was found that the analysis performed in this research are major indications for serious fault in DFIG. © 2013 IEEE.

Keyword:

Asynchronous generators Electric machine theory Stators Timing circuits Winding Wind turbines

Author Community:

  • [ 1 ] [Chen, Yu]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 2 ] [Rehman, Attiq Ur]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 3 ] [Zhao, Yihan]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 4 ] [Wang, Lulu]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 5 ] [Wang, Shuang]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 6 ] [Zhang, Min]School of Mathematics, Northwest University, Xi'an; 710049, China
  • [ 7 ] [Zhao, Yong]Xi'an Thermal Power Research Institute Company Ltd., Xi'an; 710032, China
  • [ 8 ] [Cheng, Yonghong]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 9 ] [Tanaka, Toshikatsu]Ips Research Center, Waseda University, Kitakyushu; 808-0135, Japan

Reprint Author's Address:

  • [Chen, Yu]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China;;

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Source :

IEEE Access

Year: 2021

Volume: 9

Page: 13149-13158

3 . 3 6 7

JCR@2020

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 21

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 11

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