Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties
Stability studies are a crucial part of the design of power electronic systems, especially for safety critical ap¬plications. Standard methods can guarantee stability under nominal conditions but do not take into account the multiple uncertainties that are inherent in the physical system or in the s...
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Institute of Electrical and Electronics Engineers
2017
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| Online Access: | https://eprints.nottingham.ac.uk/47130/ |
| _version_ | 1848797473144832000 |
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| author | Sumsurooah, Sharmila Odavic, Milijana Bozhko, Serhiy Boroyevich, D. |
| author_facet | Sumsurooah, Sharmila Odavic, Milijana Bozhko, Serhiy Boroyevich, D. |
| author_sort | Sumsurooah, Sharmila |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Stability studies are a crucial part of the design of power electronic systems, especially for safety critical ap¬plications. Standard methods can guarantee stability under nominal conditions but do not take into account the multiple uncertainties that are inherent in the physical system or in the system model. These uncertainties, if unaccounted for, may lead to highly optimistic or even erroneous stability margins. The structured singular value-based method justifiably takes into account all possible uncertainties in the system. However, the application of the method to power electronic systems with multiple uncertainties is not widely discussed in the literature. This work presents practical approaches to applying the method in the robust stability analysis of such uncertain systems. Further, it reveals the significant impact of various types of parametric uncertainties on the reliability of stability assessments of power electronic systems. This is achieved by examining the robust stability margin of the dc/dc buck converter system, when it is subject to variations in system load, line resistance, operating temperature and uncertainties in the system model. The predictions are supported by time domain simulation and experimental results. |
| first_indexed | 2025-11-14T20:04:26Z |
| format | Article |
| id | nottingham-47130 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:04:26Z |
| publishDate | 2017 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-471302020-05-04T18:59:08Z https://eprints.nottingham.ac.uk/47130/ Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties Sumsurooah, Sharmila Odavic, Milijana Bozhko, Serhiy Boroyevich, D. Stability studies are a crucial part of the design of power electronic systems, especially for safety critical ap¬plications. Standard methods can guarantee stability under nominal conditions but do not take into account the multiple uncertainties that are inherent in the physical system or in the system model. These uncertainties, if unaccounted for, may lead to highly optimistic or even erroneous stability margins. The structured singular value-based method justifiably takes into account all possible uncertainties in the system. However, the application of the method to power electronic systems with multiple uncertainties is not widely discussed in the literature. This work presents practical approaches to applying the method in the robust stability analysis of such uncertain systems. Further, it reveals the significant impact of various types of parametric uncertainties on the reliability of stability assessments of power electronic systems. This is achieved by examining the robust stability margin of the dc/dc buck converter system, when it is subject to variations in system load, line resistance, operating temperature and uncertainties in the system model. The predictions are supported by time domain simulation and experimental results. Institute of Electrical and Electronics Engineers 2017-08-04 Article PeerReviewed Sumsurooah, Sharmila, Odavic, Milijana, Bozhko, Serhiy and Boroyevich, D. (2017) Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties. IEEE Transactions on Power Electronics . ISSN 1941-0107 Robust stability analysis Dc/dc buck power electronic converter Linear fractional transformation Structured singular value Analysis http://ieeexplore.ieee.org/document/8002596/ doi:10.1109/TPEL.2017.2736023 doi:10.1109/TPEL.2017.2736023 |
| spellingShingle | Robust stability analysis Dc/dc buck power electronic converter Linear fractional transformation Structured singular value Analysis Sumsurooah, Sharmila Odavic, Milijana Bozhko, Serhiy Boroyevich, D. Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties |
| title | Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties |
| title_full | Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties |
| title_fullStr | Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties |
| title_full_unstemmed | Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties |
| title_short | Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties |
| title_sort | robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties |
| topic | Robust stability analysis Dc/dc buck power electronic converter Linear fractional transformation Structured singular value Analysis |
| url | https://eprints.nottingham.ac.uk/47130/ https://eprints.nottingham.ac.uk/47130/ https://eprints.nottingham.ac.uk/47130/ |