Exciter Axial and Radial Stray Flux Analysis for Rotating Diodes Supervision

P. Tian; C. A. Platero; S. B. Lee; K. N. Gyftakis; J. A. Antonino-Daviu

doi:10.1109/SDEMPED51010.2021.9605562

Exciter Axial and Radial Stray Flux Analysis for Rotating Diodes Supervision

P. Tian
, C. A. Platero
, S. B. Lee
, K. N. Gyftakis
, J. A. Antonino-Daviu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

Brushless excitation systems have many advantages mainly related to the low maintenance. A failure in the rotating diodes leads to an increase in the exciter field current and an unbalance in the currents supplied by the exciter armature. This unbalance produces additional losses in the exciter and, in some cases, severe damages if the machine is long time under operation with faulty diodes. The supervision of the rotating diodes is essential for the protection of the exciter. In this paper, monitoring of the diodes condition is carried out through the analysis of the exciter stray flux. Numerous tests have been performed in a laboratory synchronous machine measuring the axial and radial flux both in healthy conditions and with one open diode. The results prove that a failure in the diodes can be easily detected as the stray flux component corresponding to the exciter frequency significantly increases in comparison to the healthy conditions. Moreover, the use of any axial, radial or both stray fluxes are suitable for the supervision.

Original language	English
Title of host publication	2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	86-91
Number of pages	6
ISBN (Electronic)	9781728192970
DOIs	https://doi.org/10.1109/SDEMPED51010.2021.9605562
Publication status	Published - 2021
Event	13th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021 - Dallas, United States Duration: 2021 Aug 22 → 2021 Aug 25

Publication series

Name	2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021

Conference

Conference	13th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021
Country/Territory	United States
City	Dallas
Period	21/8/22 → 21/8/25

Bibliographical note

Funding Information:
ΦThis work was funded by the Spanish ‘Ministerio de Ciencia Innovación y Universidades’ and FEDER program in the framework of the ‘Proyectos de I+D de Generación de Conocimiento del Programa Estatal de Generación de Conocimiento y Fortalecimiento Científico y Tecnológico del Sistema de I+D+i, Subprograma Estatal de Generación de Conocimiento’ (ref: PGC2018-095747-B-I00).

Publisher Copyright:
© 2021 IEEE.

Keywords

Alternators
Brushless machines
Fault diagnosis
Generators
Power system protection

ASJC Scopus subject areas

Electrical and Electronic Engineering
Mechanical Engineering
Safety, Risk, Reliability and Quality

Access to Document

10.1109/SDEMPED51010.2021.9605562

Cite this

Tian, P., Platero, C. A., Lee, S. B., Gyftakis, K. N., & Antonino-Daviu, J. A. (2021). Exciter Axial and Radial Stray Flux Analysis for Rotating Diodes Supervision. In 2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021 (pp. 86-91). (2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SDEMPED51010.2021.9605562

Exciter Axial and Radial Stray Flux Analysis for Rotating Diodes Supervision. / Tian, P.; Platero, C. A.; Lee, S. B. et al.
2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021. Institute of Electrical and Electronics Engineers Inc., 2021. p. 86-91 (2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Tian, P, Platero, CA, Lee, SB, Gyftakis, KN & Antonino-Daviu, JA 2021, Exciter Axial and Radial Stray Flux Analysis for Rotating Diodes Supervision. in 2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021. 2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021, Institute of Electrical and Electronics Engineers Inc., pp. 86-91, 13th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021, Dallas, United States, 21/8/22. https://doi.org/10.1109/SDEMPED51010.2021.9605562

Tian P, Platero CA, Lee SB, Gyftakis KN, Antonino-Daviu JA. Exciter Axial and Radial Stray Flux Analysis for Rotating Diodes Supervision. In 2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021. Institute of Electrical and Electronics Engineers Inc. 2021. p. 86-91. (2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021). doi: 10.1109/SDEMPED51010.2021.9605562

Tian, P. ; Platero, C. A. ; Lee, S. B. et al. / Exciter Axial and Radial Stray Flux Analysis for Rotating Diodes Supervision. 2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021. Institute of Electrical and Electronics Engineers Inc., 2021. pp. 86-91 (2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021).

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title = "Exciter Axial and Radial Stray Flux Analysis for Rotating Diodes Supervision",

abstract = "Brushless excitation systems have many advantages mainly related to the low maintenance. A failure in the rotating diodes leads to an increase in the exciter field current and an unbalance in the currents supplied by the exciter armature. This unbalance produces additional losses in the exciter and, in some cases, severe damages if the machine is long time under operation with faulty diodes. The supervision of the rotating diodes is essential for the protection of the exciter. In this paper, monitoring of the diodes condition is carried out through the analysis of the exciter stray flux. Numerous tests have been performed in a laboratory synchronous machine measuring the axial and radial flux both in healthy conditions and with one open diode. The results prove that a failure in the diodes can be easily detected as the stray flux component corresponding to the exciter frequency significantly increases in comparison to the healthy conditions. Moreover, the use of any axial, radial or both stray fluxes are suitable for the supervision.",

keywords = "Alternators, Brushless machines, Fault diagnosis, Generators, Power system protection",

author = "P. Tian and Platero, \{C. A.\} and Lee, \{S. B.\} and Gyftakis, \{K. N.\} and Antonino-Daviu, \{J. A.\}",

note = "Funding Information: ΦThis work was funded by the Spanish {\textquoteleft}Ministerio de Ciencia Innovaci{\'o}n y Universidades{\textquoteright} and FEDER program in the framework of the {\textquoteleft}Proyectos de I+D de Generaci{\'o}n de Conocimiento del Programa Estatal de Generaci{\'o}n de Conocimiento y Fortalecimiento Cient{\'i}fico y Tecnol{\'o}gico del Sistema de I+D+i, Subprograma Estatal de Generaci{\'o}n de Conocimiento{\textquoteright} (ref: PGC2018-095747-B-I00). Publisher Copyright: {\textcopyright} 2021 IEEE.; 13th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021 ; Conference date: 22-08-2021 Through 25-08-2021",

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series = "2021 IEEE 13th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2021",

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AU - Platero, C. A.

AU - Lee, S. B.

AU - Gyftakis, K. N.

AU - Antonino-Daviu, J. A.

N1 - Funding Information: ΦThis work was funded by the Spanish ‘Ministerio de Ciencia Innovación y Universidades’ and FEDER program in the framework of the ‘Proyectos de I+D de Generación de Conocimiento del Programa Estatal de Generación de Conocimiento y Fortalecimiento Científico y Tecnológico del Sistema de I+D+i, Subprograma Estatal de Generación de Conocimiento’ (ref: PGC2018-095747-B-I00). Publisher Copyright: © 2021 IEEE.

PY - 2021

Y1 - 2021

N2 - Brushless excitation systems have many advantages mainly related to the low maintenance. A failure in the rotating diodes leads to an increase in the exciter field current and an unbalance in the currents supplied by the exciter armature. This unbalance produces additional losses in the exciter and, in some cases, severe damages if the machine is long time under operation with faulty diodes. The supervision of the rotating diodes is essential for the protection of the exciter. In this paper, monitoring of the diodes condition is carried out through the analysis of the exciter stray flux. Numerous tests have been performed in a laboratory synchronous machine measuring the axial and radial flux both in healthy conditions and with one open diode. The results prove that a failure in the diodes can be easily detected as the stray flux component corresponding to the exciter frequency significantly increases in comparison to the healthy conditions. Moreover, the use of any axial, radial or both stray fluxes are suitable for the supervision.

AB - Brushless excitation systems have many advantages mainly related to the low maintenance. A failure in the rotating diodes leads to an increase in the exciter field current and an unbalance in the currents supplied by the exciter armature. This unbalance produces additional losses in the exciter and, in some cases, severe damages if the machine is long time under operation with faulty diodes. The supervision of the rotating diodes is essential for the protection of the exciter. In this paper, monitoring of the diodes condition is carried out through the analysis of the exciter stray flux. Numerous tests have been performed in a laboratory synchronous machine measuring the axial and radial flux both in healthy conditions and with one open diode. The results prove that a failure in the diodes can be easily detected as the stray flux component corresponding to the exciter frequency significantly increases in comparison to the healthy conditions. Moreover, the use of any axial, radial or both stray fluxes are suitable for the supervision.

KW - Alternators

KW - Brushless machines

KW - Fault diagnosis

KW - Generators

KW - Power system protection

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Y2 - 22 August 2021 through 25 August 2021

ER -

Exciter Axial and Radial Stray Flux Analysis for Rotating Diodes Supervision

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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