Adaline-Based Control Schemes for Non-Sinusoidal Multiphase Drives—Part II: Torque Optimization for Faulty Mode
Fault tolerance has been known as one of the main advantages of multiphase drives. When an open-circuit fault happens, smooth torque can be obtained without any additional hardware. However, a reconfiguration strategy is required to determine new reference currents. Despite advantages of non-sinusoi...
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| Format: | Article |
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MDPI AG
2021-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/1/249 |
| _version_ | 1797499082875338752 |
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| author | Duc Tan Vu Ngac Ky Nguyen Eric Semail Hailong Wu |
| author_facet | Duc Tan Vu Ngac Ky Nguyen Eric Semail Hailong Wu |
| author_sort | Duc Tan Vu |
| collection | DOAJ |
| description | Fault tolerance has been known as one of the main advantages of multiphase drives. When an open-circuit fault happens, smooth torque can be obtained without any additional hardware. However, a reconfiguration strategy is required to determine new reference currents. Despite advantages of non-sinusoidal electromotive forces (NS-EMFs) such as high torque density, multi-harmonics existing in NS-EMFs cause more challenges for control, especially under faulty conditions. Therefore, to guarantee high-quality vector control of multiphase drives with multi-harmonic NS-EMFs, this two-part study proposes control schemes using adaptive linear neurons (Adalines) to adaptively eliminate torque ripples. The proposed simple Adalines are efficient because of taking advantage of the knowledge of rotor position and of torque harmonic rank induced by the NS-EMFs. The control scheme using an Adaline for healthy mode was described in part I of this study. In this second part, the control scheme using another Adaline for an open-circuit operation, under the impacts of multi-harmonics in NS-EMFs, is proposed. Notably, smooth torque and similar copper losses in the remaining healthy phases can be obtained. Experimental tests are carried out on a seven-phase permanent magnet synchronous machine (PMSM) with a high total harmonic distortion (THD = 38%) of NS-EMFs. A demonstration video is provided with this paper. |
| first_indexed | 2024-03-10T03:42:21Z |
| format | Article |
| id | doaj.art-4577e2a3fd5349a2a210b6b0a834df56 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T03:42:21Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4577e2a3fd5349a2a210b6b0a834df562023-11-23T11:27:43ZengMDPI AGEnergies1996-10732021-12-0115124910.3390/en15010249Adaline-Based Control Schemes for Non-Sinusoidal Multiphase Drives—Part II: Torque Optimization for Faulty ModeDuc Tan Vu0Ngac Ky Nguyen1Eric Semail2Hailong Wu3University Lille, Arts et Métiers Institute of Technology, Central Lille, Junia, ULR 2697-L2EP, F-59000 Lille, FranceUniversity Lille, Arts et Métiers Institute of Technology, Central Lille, Junia, ULR 2697-L2EP, F-59000 Lille, FranceUniversity Lille, Arts et Métiers Institute of Technology, Central Lille, Junia, ULR 2697-L2EP, F-59000 Lille, FranceUniversity Lille, Arts et Métiers Institute of Technology, Central Lille, Junia, ULR 2697-L2EP, F-59000 Lille, FranceFault tolerance has been known as one of the main advantages of multiphase drives. When an open-circuit fault happens, smooth torque can be obtained without any additional hardware. However, a reconfiguration strategy is required to determine new reference currents. Despite advantages of non-sinusoidal electromotive forces (NS-EMFs) such as high torque density, multi-harmonics existing in NS-EMFs cause more challenges for control, especially under faulty conditions. Therefore, to guarantee high-quality vector control of multiphase drives with multi-harmonic NS-EMFs, this two-part study proposes control schemes using adaptive linear neurons (Adalines) to adaptively eliminate torque ripples. The proposed simple Adalines are efficient because of taking advantage of the knowledge of rotor position and of torque harmonic rank induced by the NS-EMFs. The control scheme using an Adaline for healthy mode was described in part I of this study. In this second part, the control scheme using another Adaline for an open-circuit operation, under the impacts of multi-harmonics in NS-EMFs, is proposed. Notably, smooth torque and similar copper losses in the remaining healthy phases can be obtained. Experimental tests are carried out on a seven-phase permanent magnet synchronous machine (PMSM) with a high total harmonic distortion (THD = 38%) of NS-EMFs. A demonstration video is provided with this paper.https://www.mdpi.com/1996-1073/15/1/249multiphase machineseven-phase machinenon-sinusoidal electromotive forcefault tolerancetorque ripple eliminationadaptive linear neuron |
| spellingShingle | Duc Tan Vu Ngac Ky Nguyen Eric Semail Hailong Wu Adaline-Based Control Schemes for Non-Sinusoidal Multiphase Drives—Part II: Torque Optimization for Faulty Mode Energies multiphase machine seven-phase machine non-sinusoidal electromotive force fault tolerance torque ripple elimination adaptive linear neuron |
| title | Adaline-Based Control Schemes for Non-Sinusoidal Multiphase Drives—Part II: Torque Optimization for Faulty Mode |
| title_full | Adaline-Based Control Schemes for Non-Sinusoidal Multiphase Drives—Part II: Torque Optimization for Faulty Mode |
| title_fullStr | Adaline-Based Control Schemes for Non-Sinusoidal Multiphase Drives—Part II: Torque Optimization for Faulty Mode |
| title_full_unstemmed | Adaline-Based Control Schemes for Non-Sinusoidal Multiphase Drives—Part II: Torque Optimization for Faulty Mode |
| title_short | Adaline-Based Control Schemes for Non-Sinusoidal Multiphase Drives—Part II: Torque Optimization for Faulty Mode |
| title_sort | adaline based control schemes for non sinusoidal multiphase drives part ii torque optimization for faulty mode |
| topic | multiphase machine seven-phase machine non-sinusoidal electromotive force fault tolerance torque ripple elimination adaptive linear neuron |
| url | https://www.mdpi.com/1996-1073/15/1/249 |
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