Demonstration of degaussing by copper and HTS windings

Title

Demonstration of degaussing by copper and HTS windings

 Author

Wikkerink, D.P. (TU Delft DC systems, Energy conversion & Storage)
Hanse, Izak (University of Twente)
Mor, A. R. (TU Delft DC systems, Energy conversion & Storage)
Polinder, H. (TU Delft Transport Engineering and Logistics) ORCID 0000-0003-2212-0954
Ross, Robert (TU Delft DC systems, Energy conversion & Storage) ORCID 0000-0003-3803-0953

 Date

2020

 Abstract

Due to their permeability, merchant and naval vessels distort Earth’s magnetic field which leaves a magnetic signature. These anomalies in the magnetic field may be detected by mines leaving the vessel exposed. To avoid detection by magnetic sensors, the vessels magnetic signature can be reduced in several ways. One of them is degaussing: a technique where a set of on-board coils produces a magnetic field to cancel the magnetic signature. Modelling studies have shown that the performance of a degaussing system can be improved by replacing the copper with high temperature superconductor (HTS) coils in terms of volume, weight and energy efficiency. This study aims to compare the degaussing functionality of copper and HTS windings. A table-top demonstration model is presented which is equipped with both copper and HTS degaussing coils. The demonstrator is prepared by removing the permanent magnetisation. The two degaussing topologies are compared in terms of functionality, efficiency, controllability and mutual inductances.

 Subject

Degaussing
HTS
Superconductor
Magnetic signature
Deperming

 To reference this document use:

http://resolver.tudelft.nl/uuid:755a92fd-a7c8-4d9c-a8df-e3b266419a3a

 Embargo date

2021-07-01

 Event

INEC 2020: 15th International Naval Engineering Conference and Exhibition, 2020-10-05 → 2020-10-09, TU Aula / Virtual/online event , Delft, Netherlands

 Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

© 2020 D.P. Wikkerink, Izak Hanse, A. R. Mor, H. Polinder, Robert Ross
Files
PDF INEC_2020_Paper_105.pdf 1.58 MB
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