A New Mode-Switching Algorithm for the 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/ECCE-Asia49820.2021.9479160

A New Mode-Switching Algorithm for the 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

Abstract

Conventional brushless exciters supply the field current to the wound-field synchronous machines through a diode bridge rectifier. Though these diode bridge-based exciters are more reliable compared to the static exciters which use brushes and slip rings, they can not produce a negative voltage across the field winding. This makes the rate of decay of the field current is very slow. To rapidly remove the field current in case of an internal fault in the synchronous machine, a thyristor emulated rotating power electronic converter (RPEC) has been proposed for brushless exciter applications. This paper shows the implementation of the gate pulse generation for the RPEC during both rectification mode as well as inversion mode. Also, the field winding current disruption issue has been analyzed while switching from rectification to inversion mode. To avoid this problem, a new algorithm has been introduced in this paper. Also, an analysis has been done on the maximum firing angle for the RPEC during the inversion mode to make sure the field current is not disrupted for the proposed converter. Finally, MATLAB-SIMULINK based simulation results are presented along with the experimental results.

Original language	English (US)
Title of host publication	Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1898-1902
Number of pages	5
ISBN (Electronic)	9781728163444
DOIs	https://doi.org/10.1109/ECCE-Asia49820.2021.9479160
State	Published - May 24 2021
Externally published	Yes
Event	12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021 - Virtual, Singapore, Singapore Duration: May 24 2021 → May 27 2021

Publication series

Name	Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021

Conference

Conference	12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
Country/Territory	Singapore
City	Virtual, Singapore
Period	5/24/21 → 5/27/21

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Keywords

Brushless exciters
electrically excited
rotating power electronic converter
synchronous machines

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10.1109/ECCE-Asia49820.2021.9479160

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Pallantla, M., Durga Manian Deivanayagam, J., Thamballa, S., & Mohan, N. (2021). A New Mode-Switching Algorithm for the Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. In Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021 (pp. 1898-1902). Article 9479160 (Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE-Asia49820.2021.9479160

A New Mode-Switching Algorithm for the Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. / Pallantla, Manikanta; Durga Manian Deivanayagam, Jeyaram; Thamballa, Sreekanth et al.
Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021. Institute of Electrical and Electronics Engineers Inc., 2021. p. 1898-1902 9479160 (Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021).

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

Pallantla, M, Durga Manian Deivanayagam, J, Thamballa, S & Mohan, N 2021, A New Mode-Switching Algorithm for the Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. in Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021., 9479160, Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021, Institute of Electrical and Electronics Engineers Inc., pp. 1898-1902, 12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021, Virtual, Singapore, Singapore, 5/24/21. https://doi.org/10.1109/ECCE-Asia49820.2021.9479160

Pallantla M, Durga Manian Deivanayagam J, Thamballa S, Mohan N. A New Mode-Switching Algorithm for the Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. In Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021. Institute of Electrical and Electronics Engineers Inc. 2021. p. 1898-1902. 9479160. (Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021). doi: 10.1109/ECCE-Asia49820.2021.9479160

Pallantla, Manikanta ; Durga Manian Deivanayagam, Jeyaram ; Thamballa, Sreekanth et al. / A New Mode-Switching Algorithm for the Line Commutated - Thyristor Bridge Emulated Rotating Power Electronic Converter for Brushless Exciter Applications. Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021. Institute of Electrical and Electronics Engineers Inc., 2021. pp. 1898-1902 (Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021).

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A New Mode-Switching Algorithm for the 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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