Bridge-type integrated hybrid DC circuit breakers

Wang, Sheng ORCID: https://orcid.org/0000-0002-2258-2633, Ugalde-Loo, Carlos E. ORCID: https://orcid.org/0000-0001-6361-4454, Li, Chuanyue ORCID: https://orcid.org/0000-0001-6835-6642, Liang, Jun ORCID: https://orcid.org/0000-0001-7511-449X and Adeuyi, Oluwole D. 2020. Bridge-type integrated hybrid DC circuit breakers. IEEE Journal of Emerging and Selected Topics in Power Electronics 8 (2) , pp. 1134-1151. 10.1109/JESTPE.2019.2900492

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Abstract

The inclusion of a large number of controllable semiconductor devices in conventional hybrid dc circuit breakers (HCBs) may significantly increase the cost of an HVdc grid protection scheme. In an attempt to reduce this cost, this paper proposes the use of two novel topologies of bridge-type integrated HCBs (BT-ICBs). The two configurations are examined in detail, their operation sequences are established, and a detailed parametric analysis is conducted. The total number of controllable semiconductor devices in a BT-ICB is assessed with the aid of selectivity studies, and a comparison is made when conventional HCB and other ICB topologies are considered. It is shown that the proposed configurations employ 50% to more than 70% less controllable devices compared with conventional HCBs. The proposed BT-ICB topologies are tested in PSCAD/EMTDC using a four-terminal HVdc grid. The simulation results demonstrate the capability and effectiveness of the proposed solutions to isolate different types of dc faults at either a dc line, a converter terminal, or a dc bus.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	IEEE
ISSN:	2168-6777
Date of First Compliant Deposit:	1 March 2019
Date of Acceptance:	2 February 2019
Last Modified:	02 Dec 2024 02:15
URI:	https://orca.cardiff.ac.uk/id/eprint/120139

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