Thyristor based modular multilevel converter with active full-bridge chain-link for forced commutation
Li, Peng and Finney, Stephen and Holliday, Derrick; (2016) Thyristor based modular multilevel converter with active full-bridge chain-link for forced commutation. In: Control and Modeling for Power Electronics (COMPEL), 2016 IEEE 17th Workshop on. IEEE, NOR. ISBN 9781509018161 (https://doi.org/10.1109/COMPEL.2016.7556658)
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Abstract
Voltage source converter (VSC) such as modular multilevel converter (MMC) has been intensively studied for high voltage direct current (HVDC) applications due to its flexible terminal voltage adjustment, compatibility with weak ac grid and independent active/reactive power control over conventional linecommutated-converter (LCC). However, LCC using thyristors still offers advantages such as high current capability and low semiconductor losses, making it dominant in the construction of large scale converter station. This paper investigates the potential of using thyristor to build the MMC sub-module circuitry, where an auxiliary full-bridge chain-link (FB-CL) is adopted for the controlled transition and forced commutation of main thyristorbridge, forming the proposed active forced commutated (AFC) thyristor cell. The AFC-MMC combines the advantages of LCC and MMC by the hybrid use of thyristor and self-commutated device, including the high power capacity, optimized efficiency, flexible control and enhanced fault-tolerant ability.
ORCID iDs
Li, Peng ORCID: https://orcid.org/0000-0003-3865-2998, Finney, Stephen ORCID: https://orcid.org/0000-0001-5039-3533 and Holliday, Derrick ORCID: https://orcid.org/0000-0002-6561-4535;-
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Item type: Book Section ID code: 58656 Dates: DateEvent1 September 2016Published5 April 2016AcceptedNotes: © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Subjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering Depositing user: Pure Administrator Date deposited: 15 Nov 2016 12:04 Last modified: 28 Oct 2024 15:17 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/58656