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A nine-pulse line-commutated converter for six-wire bipolar HVDC transmission

Commitment to decarbonization and pursuit of sustainable energy goals have accelerated the utilization of renewable energy resources where the electrical grid would have to transmit massive amounts of carbon-free power via the high- voltage network along transmission corridors operating at or nearin...

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Main Authors: Shoaib Shaikh, Mohamed Diab, Ahmed Elserougi
Format: Default Conference proceeding
Published: 2024
Subjects:
Online Access:https://hdl.handle.net/2134/26781778.v1
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author Shoaib Shaikh
Mohamed Diab
Ahmed Elserougi
author_facet Shoaib Shaikh
Mohamed Diab
Ahmed Elserougi
author_sort Shoaib Shaikh (14147286)
collection Figshare
description Commitment to decarbonization and pursuit of sustainable energy goals have accelerated the utilization of renewable energy resources where the electrical grid would have to transmit massive amounts of carbon-free power via the high- voltage network along transmission corridors operating at or nearing capacity. Constructing new transmission lines is significantly challenging due to regulatory restraints and public opposition. Alternatively, expansion of existing transmission corridors can be accomplished by converting the HVAC system into HVDC system. This paper employs a 9-pulse line-commutated converter (LCC) to transform the commonly adopted double circuit HVAC into a six-wire bipolar HVDC transmission system. Compared to equivalently rated 6- and 12-pulse LCCs, the 9-pulse LCC topology reduces the size of converter station by employing fewer thyristor valves. The principle of operation and mathematical analysis of the 9-pulse LCC are explained in this paper. The implementation of 6-wire HVDC transmission system using 9-pulse LCCs is presented and validated using MATLAB simulations for 100kV, 960MW system. A quantitative comparison between 9-pulse LCC-based HVDC system and 6- and 12-pulse counterparts is also provided to highlight the pros and cons of the suggested system.
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institution Loughborough University
publishDate 2024
record_format Figshare
spelling rr-article-267817782024-09-09T10:07:38Z A nine-pulse line-commutated converter for six-wire bipolar HVDC transmission Shoaib Shaikh (14147286) Mohamed Diab (11652895) Ahmed Elserougi (16875990) HVDC transmission Thyristors 9-pulse converter Six-wire bipolar HVDC <p>Commitment to decarbonization and pursuit of sustainable energy goals have accelerated the utilization of renewable energy resources where the electrical grid would have to transmit massive amounts of carbon-free power via the high- voltage network along transmission corridors operating at or nearing capacity. Constructing new transmission lines is significantly challenging due to regulatory restraints and public opposition. Alternatively, expansion of existing transmission corridors can be accomplished by converting the HVAC system into HVDC system. This paper employs a 9-pulse line-commutated converter (LCC) to transform the commonly adopted double circuit HVAC into a six-wire bipolar HVDC transmission system. Compared to equivalently rated 6- and 12-pulse LCCs, the 9-pulse LCC topology reduces the size of converter station by employing fewer thyristor valves. The principle of operation and mathematical analysis of the 9-pulse LCC are explained in this paper. The implementation of 6-wire HVDC transmission system using 9-pulse LCCs is presented and validated using MATLAB simulations for 100kV, 960MW system. A quantitative comparison between 9-pulse LCC-based HVDC system and 6- and 12-pulse counterparts is also provided to highlight the pros and cons of the suggested system.</p> 2024-09-09T10:07:38Z Text Conference contribution 2134/26781778.v1 https://figshare.com/articles/conference_contribution/A_nine-pulse_line-commutated_converter_for_six-wire_bipolar_HVDC_transmission/26781778 All Rights Reserved
spellingShingle HVDC transmission
Thyristors
9-pulse converter
Six-wire bipolar HVDC
Shoaib Shaikh
Mohamed Diab
Ahmed Elserougi
A nine-pulse line-commutated converter for six-wire bipolar HVDC transmission
title A nine-pulse line-commutated converter for six-wire bipolar HVDC transmission
title_full A nine-pulse line-commutated converter for six-wire bipolar HVDC transmission
title_fullStr A nine-pulse line-commutated converter for six-wire bipolar HVDC transmission
title_full_unstemmed A nine-pulse line-commutated converter for six-wire bipolar HVDC transmission
title_short A nine-pulse line-commutated converter for six-wire bipolar HVDC transmission
title_sort nine-pulse line-commutated converter for six-wire bipolar hvdc transmission
topic HVDC transmission
Thyristors
9-pulse converter
Six-wire bipolar HVDC
url https://hdl.handle.net/2134/26781778.v1