Skip to Main content Skip to Navigation
Theses

Fault-tolerant control of non-sinusoidal multiphase permanent magnet synchronous machine drives under constraints on current and voltage for automotive applications

Duc Tan Vu 1
1 L2EP - Équipe Commande
L2EP - Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697
Abstract : Electric drives for electrified vehicles need to fulfil some specific requirements from automotive markets such as high efficiency, high volume power and torque densities, low-cost but safe-to-touch, high functional reliability, high torque quality, and flux-weakening control. In this context, multiphase permanent magnet synchronous machine (PMSM) drives have become suitable candidates to meet the above requirements. The main objective of this doctoral thesis is to propose and refine fault-tolerant control strategies for non-sinusoidal multiphase PMSM drives that require less constraints on their design. In addition, constraints on current and voltage defined by the inverter and the machine are considered to optimize the machine control under the non-sinusoidal condition without exceeding their allowable limits. Therefore, the system sizing is guaranteed, especially in flux-weakening operations. The proposed fault-tolerant control strategies, based on the mathematical model of multiphase drives, enrich the control field of multiphase drives by providing various control options. The selection of one of the proposed control options can be a trade-off between a high quality torque but a low average value and a high average torque but a relatively high ripple. The control and torque performances of the drives can be refined by using artificial intelligence with a simple type of artificial neural networks named ADALINE (ADAptive LInear NEuron). With self-learning ability, fast convergence, and simplicity, ADALINEs can be applied to industrial multiphase drives. All proposed control strategies in this doctoral thesis are validated with an experimental seven-phase PMSM drive. The non-sinusoidal back electromotive force (back-EMF) of the experimental seven-phase PMSM is complex with the presence of multi-harmonics. Experimental results verify the effectiveness of the proposed strategies, and their applicability in a multiphase machine with a complex non-sinusoidal back-EMF.
Document type :
Theses
Complete list of metadatas

https://pastel.archives-ouvertes.fr/tel-03073054
Contributor : Abes Star :  Contact
Submitted on : Wednesday, December 16, 2020 - 11:13:08 AM
Last modification on : Thursday, December 17, 2020 - 4:11:05 AM

File

vu.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-03073054, version 1

Citation

Duc Tan Vu. Fault-tolerant control of non-sinusoidal multiphase permanent magnet synchronous machine drives under constraints on current and voltage for automotive applications. Electric power. HESAM Université, 2020. English. ⟨NNT : 2020HESAE040⟩. ⟨tel-03073054⟩

Share

Metrics

Record views

186

Files downloads

92