A Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications

Manikanta Pallantla; Jeyaram Durga Manian Deivanayagam; Sreekanth Thamballa; Ned Mohan

doi:10.1109/COMPEL49091.2020.9265818

A Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications

Manikanta Pallantla, Jeyaram Durga Manian Deivanayagam, Sreekanth Thamballa, Ned Mohan

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

1 Scopus citations

Abstract

The reliability of the wound field synchronous machines is improved by the brushless exciter (BLE) rather than using static exciter which requires brushes and slip rings. Conventional BLEs usesa rotating diode bridge rectifier for converting AC to DC voltage. However, these exciters cannot produce a negative voltage across the field winding because of which dynamic response of the field current is very low. The proposed topology in this paper introduces a new line commutated-thyristor bridge emulated power electronic converter that can produce both positive and negative voltage across the field winding of the generator. Also, this topology eliminates the need for a DC-link capacitor which improves the reliability of the BLE system. The proposed topology is simulated in MATLAB-SIMULINK platform and the simulation results for both rectification and inversion mode are presented. Also, a simpler control methodology has been proposed for the BLE with the proposed converter.

Original language	English (US)
Title of host publication	2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728171609
DOIs	https://doi.org/10.1109/COMPEL49091.2020.9265818
State	Published - Nov 9 2020
Externally published	Yes
Event	21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 - Aalborg, Denmark Duration: Nov 9 2020 → Nov 12 2020

Publication series

Name	2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020

Conference

Conference	21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020
Country/Territory	Denmark
City	Aalborg
Period	11/9/20 → 11/12/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Keywords

Brushless exciters
electrically excited
rotating power electronic converter
synchronous machines

Access

10.1109/COMPEL49091.2020.9265818

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Pallantla, M., Manian Deivanayagam, J. D., Thamballa, S., & Mohan, N. (2020). A Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. In 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020 Article 9265818 (2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/COMPEL49091.2020.9265818

A Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. / Pallantla, Manikanta; Manian Deivanayagam, Jeyaram Durga; Thamballa, Sreekanth et al.
2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020. Institute of Electrical and Electronics Engineers Inc., 2020. 9265818 (2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020).

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

Pallantla, M, Manian Deivanayagam, JD, Thamballa, S & Mohan, N 2020, A Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. in 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020., 9265818, 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020, Institute of Electrical and Electronics Engineers Inc., 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020, Aalborg, Denmark, 11/9/20. https://doi.org/10.1109/COMPEL49091.2020.9265818

Pallantla M, Manian Deivanayagam JD, Thamballa S, Mohan N. A Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. In 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020. Institute of Electrical and Electronics Engineers Inc. 2020. 9265818. (2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020). doi: 10.1109/COMPEL49091.2020.9265818

Pallantla, Manikanta ; Manian Deivanayagam, Jeyaram Durga ; Thamballa, Sreekanth et al. / A Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020. Institute of Electrical and Electronics Engineers Inc., 2020. (2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020).

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AB - The reliability of the wound field synchronous machines is improved by the brushless exciter (BLE) rather than using static exciter which requires brushes and slip rings. Conventional BLEs usesa rotating diode bridge rectifier for converting AC to DC voltage. However, these exciters cannot produce a negative voltage across the field winding because of which dynamic response of the field current is very low. The proposed topology in this paper introduces a new line commutated-thyristor bridge emulated power electronic converter that can produce both positive and negative voltage across the field winding of the generator. Also, this topology eliminates the need for a DC-link capacitor which improves the reliability of the BLE system. The proposed topology is simulated in MATLAB-SIMULINK platform and the simulation results for both rectification and inversion mode are presented. Also, a simpler control methodology has been proposed for the BLE with the proposed converter.

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A Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications

Abstract

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Bibliographical note

Keywords

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