Reliability- and cost-based redundancy design for modular multilevel converter
The modular multilevel converter (MMC) is very attractive in a high-voltage dc (HVdc) transmission system due to its high modularity and scalability. It is also a promising candidate for medium-voltage applications. An MMC has many power devices that lead to a relatively low reliability based only o...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/140497 |
| _version_ | 1811697714802458624 |
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| author | Tu, Pengfei Yang, Shunfeng Wang, Peng |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Tu, Pengfei Yang, Shunfeng Wang, Peng |
| author_sort | Tu, Pengfei |
| collection | NTU |
| description | The modular multilevel converter (MMC) is very attractive in a high-voltage dc (HVdc) transmission system due to its high modularity and scalability. It is also a promising candidate for medium-voltage applications. An MMC has many power devices that lead to a relatively low reliability based only on a direct failure rate calculation. The reliability of an MMC can be improved by redundant designs. Lots of redundant designs and strategies have been proposed in recent years, while their reliability improvements are hardly quantified in existing literature. In practice, reliability improvement with constraint costs is a challenge. In view of these, this paper proposes a reliability and cost assessment scheme for MMC redundant designs and strategies. Reliability and cost are quantified for comparison purposes. A medium-voltage application is used to demonstrate the reliability and cost assessment scheme. The reliability analysis is based on a combinatorial model and the Poisson process model. The cost analysis focuses on capital cost and power loss cost. The proposed reliability and cost analysis scheme provides a guideline for MMC redundant design and redundant strategy selection. |
| first_indexed | 2024-10-01T07:59:39Z |
| format | Journal Article |
| id | ntu-10356/140497 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:59:39Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1404972020-05-29T08:51:50Z Reliability- and cost-based redundancy design for modular multilevel converter Tu, Pengfei Yang, Shunfeng Wang, Peng School of Electrical and Electronic Engineering Rolls-Royce@NTU Corporate Lab Engineering::Electrical and electronic engineering Cost Model Fault-tolerant Control The modular multilevel converter (MMC) is very attractive in a high-voltage dc (HVdc) transmission system due to its high modularity and scalability. It is also a promising candidate for medium-voltage applications. An MMC has many power devices that lead to a relatively low reliability based only on a direct failure rate calculation. The reliability of an MMC can be improved by redundant designs. Lots of redundant designs and strategies have been proposed in recent years, while their reliability improvements are hardly quantified in existing literature. In practice, reliability improvement with constraint costs is a challenge. In view of these, this paper proposes a reliability and cost assessment scheme for MMC redundant designs and strategies. Reliability and cost are quantified for comparison purposes. A medium-voltage application is used to demonstrate the reliability and cost assessment scheme. The reliability analysis is based on a combinatorial model and the Poisson process model. The cost analysis focuses on capital cost and power loss cost. The proposed reliability and cost analysis scheme provides a guideline for MMC redundant design and redundant strategy selection. NRF (Natl Research Foundation, S’pore) 2020-05-29T08:51:49Z 2020-05-29T08:51:49Z 2018 Journal Article Tu, P., Yang, S., & Wang, P. (2019). Reliability- and cost-based redundancy design for modular multilevel converter. IEEE Transactions on Industrial Electronics, 66(3), 2333-2342. doi:10.1109/TIE.2018.2793263 0278-0046 https://hdl.handle.net/10356/140497 10.1109/TIE.2018.2793263 2-s2.0-85041196591 3 66 2333 2342 en IEEE Transactions on Industrial Electronics © 2018 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Cost Model Fault-tolerant Control Tu, Pengfei Yang, Shunfeng Wang, Peng Reliability- and cost-based redundancy design for modular multilevel converter |
| title | Reliability- and cost-based redundancy design for modular multilevel converter |
| title_full | Reliability- and cost-based redundancy design for modular multilevel converter |
| title_fullStr | Reliability- and cost-based redundancy design for modular multilevel converter |
| title_full_unstemmed | Reliability- and cost-based redundancy design for modular multilevel converter |
| title_short | Reliability- and cost-based redundancy design for modular multilevel converter |
| title_sort | reliability and cost based redundancy design for modular multilevel converter |
| topic | Engineering::Electrical and electronic engineering Cost Model Fault-tolerant Control |
| url | https://hdl.handle.net/10356/140497 |
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