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Designing and Testing Optimisation Methods for Simulating Superconducting Electronic Circuits
Thesis (MEng)--Stellenbosch University, 2025.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2025
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| _version_ | 1867613982135681024 |
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| access_status_str | Open Access |
| author | Davies, Anna Penelope |
| author2 | Fourie, C. J. |
| author_browse | Davies, Anna Penelope Fourie, C. J. |
| author_facet | Fourie, C. J. Davies, Anna Penelope |
| author_sort | Davies, Anna Penelope |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MEng)--Stellenbosch University, 2025. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/132159 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:44:46.833Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/132159 Designing and Testing Optimisation Methods for Simulating Superconducting Electronic Circuits Davies, Anna Penelope Fourie, C. J. Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Superconductors -- Thermal properties Electric lines -- Superconducting Electronic circuit design Mathematical optimization UCTD Thesis (MEng)--Stellenbosch University, 2025. Davies, A. P. 2025. Designing and Testing Optimisation Methods for Simulating Superconducting Electronic Circuits. Unpublished masters thesis. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/a0dd59e4-85e2-4c49-9821-f713ea2703bd ENGLISH ABSTRACT: This research investigates various optimisation methods and their success at improving the critical margins of superconducting electronic circuits. Due to the high cost of fabrication of superconducting electronics and the variation in component values from simulated designs, it is necessary that component margins are maximised to provide each circuit with as high a critical margin as possible. A program was developed to implement two selected optimisation methods, namely the centre of gravity and genetic algorithm methods, and compare their final results. By varying parameter values and traversing the operational search space of a circuit, more optimal component combinations can be identified. Various optimisation parameters were investigated to determine which combination of factors produced the best results. The interdependencies between circuit components were considered, and their effect on the optimisation process. By targeting specific parameters with influence on those with low component margins, a more focused and efficient approach can be achieved. The optimisation methods were further developed by introducing an improved starting position to speed up the optimisation process. This study gives a useful indication of the overall success of these methods, and the impact of optimisation parameters and the initial position of the search space. AFRIKAANSE OPSOMMING: Hierdie navorsing ondersoek verskeie optimeringsmetodes en hul sukses om die kritieke marges van supergeleidende elektroniese stroombane te verbeter. As gevolg van die ho¨e koste van vervaardiging van supergeleidende elektronika en die variasie in komponentwaardes vanaf gesimuleerde ontwerpe, is dit nodig dat komponentmarges gemaksimeer word om elke stroombaan van so ’n ho¨e kritieke marge as moontlik te voorsien. ’n Program is ontwikkel om twee geselekteerde optimaliseringsmetodes, naamlik die swaartepunt en genetiese algoritmemetodes, te implementeer en hul finale resultate te vergelyk. Deur parameterwaardes te verander en die operasionele soekruimte van ’n stroombaan te deurkruis, kan meer optimale komponentkombinasies ge¨ıdentifiseer word. Verskeie optimeringsparameters is ondersoek om te bepaal watter kombinasie van faktore die beste resultate opgelewer het. Die interafhanklikhede tussen stroombaankomponente is in ag geneem, en die effek daarvan op die optimeringsproses. Deur spesifieke parameters te teiken met invloed op diegene met lae komponentmarges, kan ’n meer gefokusde en doeltreffende benadering bereik word. Die optimeringsmetodes is verder ontwikkel deur ’n verbeterde beginposisie in te stel om die optimeringsproses te bespoedig. Hierdie studie gee ’n nuttige aanduiding van die algehele sukses van hierdie metodes, en die impak van optimeringsparameters en die aanvanklike posisie van die soekruimte. Masters 2025-05-28T08:52:56Z 2025-05-28T08:52:56Z 2025-03 Thesis https://scholar.sun.ac.za/handle/10019.1/132159 en Stellenbosch University xiii, 97 pages : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Superconductors -- Thermal properties Electric lines -- Superconducting Electronic circuit design Mathematical optimization UCTD Davies, Anna Penelope Designing and Testing Optimisation Methods for Simulating Superconducting Electronic Circuits |
| title | Designing and Testing Optimisation Methods for Simulating Superconducting Electronic Circuits |
| title_full | Designing and Testing Optimisation Methods for Simulating Superconducting Electronic Circuits |
| title_fullStr | Designing and Testing Optimisation Methods for Simulating Superconducting Electronic Circuits |
| title_full_unstemmed | Designing and Testing Optimisation Methods for Simulating Superconducting Electronic Circuits |
| title_short | Designing and Testing Optimisation Methods for Simulating Superconducting Electronic Circuits |
| title_sort | designing and testing optimisation methods for simulating superconducting electronic circuits |
| topic | Superconductors -- Thermal properties Electric lines -- Superconducting Electronic circuit design Mathematical optimization UCTD |
| url | https://scholar.sun.ac.za/handle/10019.1/132159 |
| work_keys_str_mv | AT daviesannapenelope designingandtestingoptimisationmethodsforsimulatingsuperconductingelectroniccircuits |