Design of a fault-tolerant tandem converter for a multi-MW superconducting offshore wind turbine generator

Parker, Max A and Finney, Stephen J; (2015) Design of a fault-tolerant tandem converter for a multi-MW superconducting offshore wind turbine generator. In: 2015 IEEE International Conference on Industrial Technology (ICIT). IEEE, ESP, pp. 969-975. ISBN 9781479977994 (https://doi.org/10.1109/ICIT.2015.7125223)

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Abstract

A fault-tolerant tandem converter, based on a current-source converter and cascaded multilevel voltage-source active filter, is proposed as the grid interface for a 10MW superconducting direct-drive wind turbine generator. The converter reduces the possibility of a short-circuit fault, an issue with the extremely low generator reactance, while having a significantly lower DC capacitance requirement than an equivalent modular multilevel converter, although this is still high due to an extremely low generator frequency. Active filter DC capacitance is optimised, and a control system designed to prevent large DC voltage peaks during transients, and is verified in simulation. DC voltage balancing between the phases of the filter limits the torque control bandwidth of the converter if the capacitance is to be minimised, due to the slow speed of the balancing controller.

ORCID iDs

Parker, Max A ORCID logoORCID: https://orcid.org/0000-0001-8268-4829 and Finney, Stephen J ORCID logoORCID: https://orcid.org/0000-0001-5039-3533;
  • Item type:Book Section
    ID code:52643
    Dates:
    Date
    Event
    18 June 2015
    Published
    22 December 2014
    Accepted
    Notes:(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components 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:14 Apr 2015 11:39
    Last modified:11 Nov 2024 15:01
    URI:https://strathprints.strath.ac.uk/id/eprint/52643
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