Reliability Analysis of a Multilevel Inverter Applied to Stratospheric Drones Using Fault Tree Analysis
Stratospheric drones operating in extreme environments are very important for predicting reliability and are high-efficiency, high-performance, and lightweight power units. Multilevel inverters are suitable for application as power conversion units for stratospheric drones. A guideline is needed to...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/24/4952 |
| _version_ | 1797381296760029184 |
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| author | Jung-Hwan Lee Hyang-Sig Jun Hee-Mun Park Jin-Hyun Park Sang-Kil Lim |
| author_facet | Jung-Hwan Lee Hyang-Sig Jun Hee-Mun Park Jin-Hyun Park Sang-Kil Lim |
| author_sort | Jung-Hwan Lee |
| collection | DOAJ |
| description | Stratospheric drones operating in extreme environments are very important for predicting reliability and are high-efficiency, high-performance, and lightweight power units. Multilevel inverters are suitable for application as power conversion units for stratospheric drones. A guideline is needed to evaluate whether it is suitable for practical application from a reliability perspective among various multilevel topologies. Existing reliability prediction models cannot reflect the operating characteristics of multilevel inverters. In this paper, we analyze the driving characteristics of each topology from the perspective of half-bride, which is the basic configuration of multilevel inverters, and we propose a fault tree analysis (FTA) design with three operating modes. The proposed method has the advantage of being able to easily analyze the failure rate by expanding to single-phase and three-phase and to analyze the failure rate according to changes in modulation index (MI) and power factor (PF). The failure rates of the proposed method and the part count method are analyzed using MIL-HDBK-217F. We also analyze the impact of different various operating characteristics on the failure rate. From a reliability perspective, we provide a variety of guidelines for selecting a multilevel topology that fits the operation conditions. |
| first_indexed | 2024-03-08T20:49:23Z |
| format | Article |
| id | doaj.art-0b8ef07fcc704704a0cc548b2286dd3a |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-08T20:49:23Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-0b8ef07fcc704704a0cc548b2286dd3a2023-12-22T14:05:01ZengMDPI AGElectronics2079-92922023-12-011224495210.3390/electronics12244952Reliability Analysis of a Multilevel Inverter Applied to Stratospheric Drones Using Fault Tree AnalysisJung-Hwan Lee0Hyang-Sig Jun1Hee-Mun Park2Jin-Hyun Park3Sang-Kil Lim4Department of Automotive Engineering, Honam University, Gwangju 62399, Republic of KoreaUnmanned Aircraft System Research Division, Korea Aerospace Research Institute, Daejeon 34133, Republic of KoreaDepartment of Computer and Mechatronics Engineering, Gyeongsang National University, Jinju 52828, Republic of KoreaDepartment of Mechatronics Engineering, Gyeongsang National University, Jinju 52828, Republic of KoreaDepartment of Automotive Engineering, Honam University, Gwangju 62399, Republic of KoreaStratospheric drones operating in extreme environments are very important for predicting reliability and are high-efficiency, high-performance, and lightweight power units. Multilevel inverters are suitable for application as power conversion units for stratospheric drones. A guideline is needed to evaluate whether it is suitable for practical application from a reliability perspective among various multilevel topologies. Existing reliability prediction models cannot reflect the operating characteristics of multilevel inverters. In this paper, we analyze the driving characteristics of each topology from the perspective of half-bride, which is the basic configuration of multilevel inverters, and we propose a fault tree analysis (FTA) design with three operating modes. The proposed method has the advantage of being able to easily analyze the failure rate by expanding to single-phase and three-phase and to analyze the failure rate according to changes in modulation index (MI) and power factor (PF). The failure rates of the proposed method and the part count method are analyzed using MIL-HDBK-217F. We also analyze the impact of different various operating characteristics on the failure rate. From a reliability perspective, we provide a variety of guidelines for selecting a multilevel topology that fits the operation conditions.https://www.mdpi.com/2079-9292/12/24/4952diode clamped circuit (DCC)flying capacitor circuit (FCC)t-type neutral point clamped circuit (TNPC)failure ratefault-tree analysis (FTA)stratospheric drones |
| spellingShingle | Jung-Hwan Lee Hyang-Sig Jun Hee-Mun Park Jin-Hyun Park Sang-Kil Lim Reliability Analysis of a Multilevel Inverter Applied to Stratospheric Drones Using Fault Tree Analysis Electronics diode clamped circuit (DCC) flying capacitor circuit (FCC) t-type neutral point clamped circuit (TNPC) failure rate fault-tree analysis (FTA) stratospheric drones |
| title | Reliability Analysis of a Multilevel Inverter Applied to Stratospheric Drones Using Fault Tree Analysis |
| title_full | Reliability Analysis of a Multilevel Inverter Applied to Stratospheric Drones Using Fault Tree Analysis |
| title_fullStr | Reliability Analysis of a Multilevel Inverter Applied to Stratospheric Drones Using Fault Tree Analysis |
| title_full_unstemmed | Reliability Analysis of a Multilevel Inverter Applied to Stratospheric Drones Using Fault Tree Analysis |
| title_short | Reliability Analysis of a Multilevel Inverter Applied to Stratospheric Drones Using Fault Tree Analysis |
| title_sort | reliability analysis of a multilevel inverter applied to stratospheric drones using fault tree analysis |
| topic | diode clamped circuit (DCC) flying capacitor circuit (FCC) t-type neutral point clamped circuit (TNPC) failure rate fault-tree analysis (FTA) stratospheric drones |
| url | https://www.mdpi.com/2079-9292/12/24/4952 |
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