Failure Rate and Economic Cost Analysis of Clamped-Single Submodule with DC Short Current Protection for High Voltage Direct Current System
Clamped-single submodule (CSSM) has DC short circuit current protection function to improve the safety and stability of high voltage, direct current (HVDC) system. In order to carry out the protection, it needs an additional number of insulated gate bipolar transistors (IGBTs) and diodes compared to...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/10/9/993 |
| _version_ | 1797536873640361984 |
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| author | Yun-Gi Kwak Feel-Soon Kang Sung-Geun Song |
| author_facet | Yun-Gi Kwak Feel-Soon Kang Sung-Geun Song |
| author_sort | Yun-Gi Kwak |
| collection | DOAJ |
| description | Clamped-single submodule (CSSM) has DC short circuit current protection function to improve the safety and stability of high voltage, direct current (HVDC) system. In order to carry out the protection, it needs an additional number of insulated gate bipolar transistors (IGBTs) and diodes compared to the conventional half-bridge submodule (HBSM). In general, the failure rate tends to increase in proportion to the number of circuit components. Also, complex operation of the submodule may increase the failure rate, so accurate reliability analysis considering these points is required to apply CSSM in a practical HVDC system. We estimate the failure rate and the mean time between failures (MTBF) of CSSM using a fault tree. Fault-tree analysis (FTA) is possible to analyze the failure rate more accurately than the prior part count failure analysis (PCA) that considers only the number of parts, the type of parts, and the connection status of each circuit component. To provide guidelines for submodule selection under various conditions, we compare the economic cost of a CSSM with HBSM, FBSM, and clamped-double submodule (CDSM), and analyze the failure rate according to the voltage margin of the parts. |
| first_indexed | 2024-03-10T12:07:01Z |
| format | Article |
| id | doaj.art-c557a3f726564d88a20366341d1ea995 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T12:07:01Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-c557a3f726564d88a20366341d1ea9952023-11-21T16:30:53ZengMDPI AGElectronics2079-92922021-04-0110999310.3390/electronics10090993Failure Rate and Economic Cost Analysis of Clamped-Single Submodule with DC Short Current Protection for High Voltage Direct Current SystemYun-Gi Kwak0Feel-Soon Kang1Sung-Geun Song2Department of Electronic Engineering, Hanbat National University, Daejeon 34158, KoreaDepartment of Electronic Engineering, Hanbat National University, Daejeon 34158, KoreaEnergy Conversion Research Centre, Korea Electronics Technology Institute, Gwangju 61011, KoreaClamped-single submodule (CSSM) has DC short circuit current protection function to improve the safety and stability of high voltage, direct current (HVDC) system. In order to carry out the protection, it needs an additional number of insulated gate bipolar transistors (IGBTs) and diodes compared to the conventional half-bridge submodule (HBSM). In general, the failure rate tends to increase in proportion to the number of circuit components. Also, complex operation of the submodule may increase the failure rate, so accurate reliability analysis considering these points is required to apply CSSM in a practical HVDC system. We estimate the failure rate and the mean time between failures (MTBF) of CSSM using a fault tree. Fault-tree analysis (FTA) is possible to analyze the failure rate more accurately than the prior part count failure analysis (PCA) that considers only the number of parts, the type of parts, and the connection status of each circuit component. To provide guidelines for submodule selection under various conditions, we compare the economic cost of a CSSM with HBSM, FBSM, and clamped-double submodule (CDSM), and analyze the failure rate according to the voltage margin of the parts.https://www.mdpi.com/2079-9292/10/9/993clamped-double submodule (CDSM)clamped-single submodule (CSSM)economic costfull-bridge submodule (FBSM)half-bridge submodule (HBSM)fault-tree analysis (FTA) |
| spellingShingle | Yun-Gi Kwak Feel-Soon Kang Sung-Geun Song Failure Rate and Economic Cost Analysis of Clamped-Single Submodule with DC Short Current Protection for High Voltage Direct Current System Electronics clamped-double submodule (CDSM) clamped-single submodule (CSSM) economic cost full-bridge submodule (FBSM) half-bridge submodule (HBSM) fault-tree analysis (FTA) |
| title | Failure Rate and Economic Cost Analysis of Clamped-Single Submodule with DC Short Current Protection for High Voltage Direct Current System |
| title_full | Failure Rate and Economic Cost Analysis of Clamped-Single Submodule with DC Short Current Protection for High Voltage Direct Current System |
| title_fullStr | Failure Rate and Economic Cost Analysis of Clamped-Single Submodule with DC Short Current Protection for High Voltage Direct Current System |
| title_full_unstemmed | Failure Rate and Economic Cost Analysis of Clamped-Single Submodule with DC Short Current Protection for High Voltage Direct Current System |
| title_short | Failure Rate and Economic Cost Analysis of Clamped-Single Submodule with DC Short Current Protection for High Voltage Direct Current System |
| title_sort | failure rate and economic cost analysis of clamped single submodule with dc short current protection for high voltage direct current system |
| topic | clamped-double submodule (CDSM) clamped-single submodule (CSSM) economic cost full-bridge submodule (FBSM) half-bridge submodule (HBSM) fault-tree analysis (FTA) |
| url | https://www.mdpi.com/2079-9292/10/9/993 |
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