A Novel Fault-Tolerant Control of Modular Multilevel Converter under Sub-Module Faults based on Phase Disposition PWM
Each arm of modular multilevel converter (MMC) consists of a large number of sub-module (SM) units. However, it also increases the probability of SM failure during the long-term system operation. Focusing on the fault-tolerant operation issue for the MMC under SM faults, the traditional zero-sequenc...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-12-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/12/1/20 |
| _version_ | 1828155203380051968 |
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| author | Yin Jingyuan Wen Wu Wei Tongzhen Wu Xuezhi Huo Qunhai |
| author_facet | Yin Jingyuan Wen Wu Wei Tongzhen Wu Xuezhi Huo Qunhai |
| author_sort | Yin Jingyuan |
| collection | DOAJ |
| description | Each arm of modular multilevel converter (MMC) consists of a large number of sub-module (SM) units. However, it also increases the probability of SM failure during the long-term system operation. Focusing on the fault-tolerant operation issue for the MMC under SM faults, the traditional zero-sequence voltage injection fault-tolerant control algorithm is analyzed detailed and its disadvantages are concluded. Based on this, a novel fault-tolerant control strategy based on phase disposition pulse-width modulation (PD-PWM) is proposed in this paper, which has three main benefits: (i) it has carrier and modulation wave dual correction mechanism, which control ability is more higher and flexible；(ii) it only needs to inject zero-sequence voltage in half a cycle of the modulation wave, which simplifies the complexity of traditional zero-sequence voltage injection control algorithms and much easier for implement; (iii) furthermore, the zero-sequence voltage can even be avoided injecting under the symmetrical fault conditions. Finally, the effectiveness of the proposed control strategy is verified with the simulation and experiment studies under different fault conditions. |
| first_indexed | 2024-04-11T22:49:42Z |
| format | Article |
| id | doaj.art-5085091c00994a0abe5f5de4ce0580a4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:49:42Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5085091c00994a0abe5f5de4ce0580a42022-12-22T03:58:37ZengMDPI AGEnergies1996-10732018-12-011212010.3390/en12010020en12010020A Novel Fault-Tolerant Control of Modular Multilevel Converter under Sub-Module Faults based on Phase Disposition PWMYin Jingyuan0Wen Wu1Wei Tongzhen2Wu Xuezhi3Huo Qunhai4Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100044,ChinaNational Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing, 100044, ChinaInstitute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100044,ChinaNational Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing, 100044, ChinaInstitute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100044,ChinaEach arm of modular multilevel converter (MMC) consists of a large number of sub-module (SM) units. However, it also increases the probability of SM failure during the long-term system operation. Focusing on the fault-tolerant operation issue for the MMC under SM faults, the traditional zero-sequence voltage injection fault-tolerant control algorithm is analyzed detailed and its disadvantages are concluded. Based on this, a novel fault-tolerant control strategy based on phase disposition pulse-width modulation (PD-PWM) is proposed in this paper, which has three main benefits: (i) it has carrier and modulation wave dual correction mechanism, which control ability is more higher and flexible；(ii) it only needs to inject zero-sequence voltage in half a cycle of the modulation wave, which simplifies the complexity of traditional zero-sequence voltage injection control algorithms and much easier for implement; (iii) furthermore, the zero-sequence voltage can even be avoided injecting under the symmetrical fault conditions. Finally, the effectiveness of the proposed control strategy is verified with the simulation and experiment studies under different fault conditions.http://www.mdpi.com/1996-1073/12/1/20modular multilevel converter (MMC)Sub-module (SM) faultfault-tolerant controlPhase Disposition PWM |
| spellingShingle | Yin Jingyuan Wen Wu Wei Tongzhen Wu Xuezhi Huo Qunhai A Novel Fault-Tolerant Control of Modular Multilevel Converter under Sub-Module Faults based on Phase Disposition PWM Energies modular multilevel converter (MMC) Sub-module (SM) fault fault-tolerant control Phase Disposition PWM |
| title | A Novel Fault-Tolerant Control of Modular Multilevel Converter under Sub-Module Faults based on Phase Disposition PWM |
| title_full | A Novel Fault-Tolerant Control of Modular Multilevel Converter under Sub-Module Faults based on Phase Disposition PWM |
| title_fullStr | A Novel Fault-Tolerant Control of Modular Multilevel Converter under Sub-Module Faults based on Phase Disposition PWM |
| title_full_unstemmed | A Novel Fault-Tolerant Control of Modular Multilevel Converter under Sub-Module Faults based on Phase Disposition PWM |
| title_short | A Novel Fault-Tolerant Control of Modular Multilevel Converter under Sub-Module Faults based on Phase Disposition PWM |
| title_sort | novel fault tolerant control of modular multilevel converter under sub module faults based on phase disposition pwm |
| topic | modular multilevel converter (MMC) Sub-module (SM) fault fault-tolerant control Phase Disposition PWM |
| url | http://www.mdpi.com/1996-1073/12/1/20 |
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