Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter
Single-phase power electronic traction transformer (PETT) is the power device to realize higher efficiency and reduction of weight in railway traction system, and parallel operated full-bridge isolated DC-DC converters are an important part of single-phase PETT to realize a stable DC-voltage output....
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| Format: | Article |
| Language: | zho |
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Editorial Office of Control and Information Technology
2017-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
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| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2095-3631.2017.04.014 |
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| author | XIE Dong GE Xinglai |
| author_facet | XIE Dong GE Xinglai |
| author_sort | XIE Dong |
| collection | DOAJ |
| description | Single-phase power electronic traction transformer (PETT) is the power device to realize higher efficiency and reduction of weight in railway traction system, and parallel operated full-bridge isolated DC-DC converters are an important part of single-phase PETT to realize a stable DC-voltage output. In order to ensure the reliability of DC-DC level, in this paper, an open-circuit fault diagnosis method based on state estimator was proposed for open-circuit fault of a single IGBT. Through establishment of mixed logic dynamic (MLD) model and state estimator model, estimator residuals of the DC-DC level were analyzed under normal and faulty conditions. According to the residuals including information of the fault, fault diagnosis was achieved. Finally, the proposed fault diagnosis method was verified in a hardware-in-loop (HIL) experimental platform with RT-LAB simulator. Experimental results show that the diagnosis method can effectively locate the fault switch in four switching cycles after open-circuit fault of IGBT. |
| format | Article |
| id | doaj-art-00ea0a9bac8c426a8f1667b1ef2dcd57 |
| institution | Kabale University |
| issn | 2096-5427 |
| language | zho |
| publishDate | 2017-01-01 |
| publisher | Editorial Office of Control and Information Technology |
| record_format | Article |
| series | Kongzhi Yu Xinxi Jishu |
| spelling | doaj-art-00ea0a9bac8c426a8f1667b1ef2dcd572025-08-25T06:55:47ZzhoEditorial Office of Control and Information TechnologyKongzhi Yu Xinxi Jishu2096-54272017-01-013482335087Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC ConverterXIE DongGE XinglaiSingle-phase power electronic traction transformer (PETT) is the power device to realize higher efficiency and reduction of weight in railway traction system, and parallel operated full-bridge isolated DC-DC converters are an important part of single-phase PETT to realize a stable DC-voltage output. In order to ensure the reliability of DC-DC level, in this paper, an open-circuit fault diagnosis method based on state estimator was proposed for open-circuit fault of a single IGBT. Through establishment of mixed logic dynamic (MLD) model and state estimator model, estimator residuals of the DC-DC level were analyzed under normal and faulty conditions. According to the residuals including information of the fault, fault diagnosis was achieved. Finally, the proposed fault diagnosis method was verified in a hardware-in-loop (HIL) experimental platform with RT-LAB simulator. Experimental results show that the diagnosis method can effectively locate the fault switch in four switching cycles after open-circuit fault of IGBT.http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2095-3631.2017.04.014parallel operated full-bridge isolated DC-DC converterIGBT open-circuit faultmixed logic dynamic (MLD) modelstate estimator modelresidual |
| spellingShingle | XIE Dong GE Xinglai Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter Kongzhi Yu Xinxi Jishu parallel operated full-bridge isolated DC-DC converter IGBT open-circuit fault mixed logic dynamic (MLD) model state estimator model residual |
| title | Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter |
| title_full | Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter |
| title_fullStr | Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter |
| title_full_unstemmed | Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter |
| title_short | Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter |
| title_sort | open circuit fault diagnosis for parallel operated full bridge isolated dc dc converter |
| topic | parallel operated full-bridge isolated DC-DC converter IGBT open-circuit fault mixed logic dynamic (MLD) model state estimator model residual |
| url | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2095-3631.2017.04.014 |
| work_keys_str_mv | AT xiedong opencircuitfaultdiagnosisforparalleloperatedfullbridgeisolateddcdcconverter AT gexinglai opencircuitfaultdiagnosisforparalleloperatedfullbridgeisolateddcdcconverter |