Picture of neon light reading 'Open'

Discover open research at Strathprints as part of International Open Access Week!

23-29 October 2017 is International Open Access Week. The Strathprints institutional repository is a digital archive of Open Access research outputs, all produced by University of Strathclyde researchers.

Explore recent world leading Open Access research content this Open Access Week from across Strathclyde's many research active faculties: Engineering, Science, Humanities, Arts & Social Sciences and Strathclyde Business School.

Explore all Strathclyde Open Access research outputs...

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, pp. 969-975. ISBN 9781479977994

Text (Parker-Finney-ICIT2015-fault-tolerant-tandem-converter-multi-MW-superconducting-wind-turbine)
Parker_Finney_ICIT2015_fault_tolerant_tandem_converter_multi_MW_superconducting_wind_turbine.pdf - Accepted Author Manuscript

Download (841kB) | Preview


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.