Open-circuit fault diagnosis of three-level inverter based on Park transformatio
In view of problems that existing neutral point clamped (NPC) three-level inverter fault diagnosis method needs large amount of calculation and its accuracy is affected by noise and load, an open-circuit fault diagnosis method of three-level inverter based on Park transformation was proposed. Park t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2020-05-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.17523 |
| _version_ | 1819018008406786048 |
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| author | REN Xiaohong WAN Hong YU Xiao DING Enjie |
| author_facet | REN Xiaohong WAN Hong YU Xiao DING Enjie |
| author_sort | REN Xiaohong |
| collection | DOAJ |
| description | In view of problems that existing neutral point clamped (NPC) three-level inverter fault diagnosis method needs large amount of calculation and its accuracy is affected by noise and load, an open-circuit fault diagnosis method of three-level inverter based on Park transformation was proposed. Park transformation is carried out on three-phase output current of the three-level inverter to calculate average current Park vector;sliding window is used to obtain a single-cycle current signal, and output current change is analyzed in case of IGBT fault according to inverter circuit structure; iterative method is used to determine threshold value of average current Park vector modulus, and 13 kinds of open-circuit faults of three-level inverter power tube are identifid and located combining phase angle and modulus.Simulation results show that the fault diagnosis accuracy of the method reaches 98.31%. Compared with traditional open-circuit fault diagnosis method, the proposed method does not need to learn and train the data of 13 kinds of open-circuit faults, which greatly reduces calculation amount and improves efficiency and accuracy of fault diagnosis. |
| first_indexed | 2024-12-21T03:12:35Z |
| format | Article |
| id | doaj.art-50e756d381f3496c9fa197062f0ebef6 |
| institution | Directory Open Access Journal |
| issn | 1671-251X |
| language | zho |
| last_indexed | 2024-12-21T03:12:35Z |
| publishDate | 2020-05-01 |
| publisher | Editorial Department of Industry and Mine Automation |
| record_format | Article |
| series | Gong-kuang zidonghua |
| spelling | doaj.art-50e756d381f3496c9fa197062f0ebef62022-12-21T19:17:56ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2020-05-01465828610.13272/j.issn.1671-251x.17523Open-circuit fault diagnosis of three-level inverter based on Park transformatioREN XiaohongWAN HongYU XiaoDING EnjieIn view of problems that existing neutral point clamped (NPC) three-level inverter fault diagnosis method needs large amount of calculation and its accuracy is affected by noise and load, an open-circuit fault diagnosis method of three-level inverter based on Park transformation was proposed. Park transformation is carried out on three-phase output current of the three-level inverter to calculate average current Park vector;sliding window is used to obtain a single-cycle current signal, and output current change is analyzed in case of IGBT fault according to inverter circuit structure; iterative method is used to determine threshold value of average current Park vector modulus, and 13 kinds of open-circuit faults of three-level inverter power tube are identifid and located combining phase angle and modulus.Simulation results show that the fault diagnosis accuracy of the method reaches 98.31%. Compared with traditional open-circuit fault diagnosis method, the proposed method does not need to learn and train the data of 13 kinds of open-circuit faults, which greatly reduces calculation amount and improves efficiency and accuracy of fault diagnosis.http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.17523npc three-level inverterigbt power tube open-circuit faultpark transformationaverage current park vector |
| spellingShingle | REN Xiaohong WAN Hong YU Xiao DING Enjie Open-circuit fault diagnosis of three-level inverter based on Park transformatio Gong-kuang zidonghua npc three-level inverter igbt power tube open-circuit fault park transformation average current park vector |
| title | Open-circuit fault diagnosis of three-level inverter based on Park transformatio |
| title_full | Open-circuit fault diagnosis of three-level inverter based on Park transformatio |
| title_fullStr | Open-circuit fault diagnosis of three-level inverter based on Park transformatio |
| title_full_unstemmed | Open-circuit fault diagnosis of three-level inverter based on Park transformatio |
| title_short | Open-circuit fault diagnosis of three-level inverter based on Park transformatio |
| title_sort | open circuit fault diagnosis of three level inverter based on park transformatio |
| topic | npc three-level inverter igbt power tube open-circuit fault park transformation average current park vector |
| url | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.17523 |
| work_keys_str_mv | AT renxiaohong opencircuitfaultdiagnosisofthreelevelinverterbasedonparktransformatio AT wanhong opencircuitfaultdiagnosisofthreelevelinverterbasedonparktransformatio AT yuxiao opencircuitfaultdiagnosisofthreelevelinverterbasedonparktransformatio AT dingenjie opencircuitfaultdiagnosisofthreelevelinverterbasedonparktransformatio |