Thématique de recherche
|Fault Modeling, Fault Diagnostic and Fault Tolerant control of Multiphase PMSM: application to Electrical vehicle (EV) and Aerospace Propulsion (AP)|
ACLI Revue internationale avec comité de lecture
| Real-time Switches Fault Diagnosis based on Typical Operating Characteristics of Five-Phase Permanent Magnet Synchronous Machines|
IEEE Transactions on Industrial Electronics, Vol. 63, N°. 8, pages. 4683-4696, 08/2016, Abstract
TRABELSI Mohamed, NGUYEN Ngac Ky, SEMAIL Eric
A novel centroid-based diagnostic method of the power switches in five-leg Voltage Source Inverter (VSI) is proposed in this paper. Using a vectorial multi-machine description, a five-phase drive presenting an opened switch or an opened phase faults has typical operating characteristics in comparison to classical three-phase drives. Based on such characteristics, this work aims to provide a simple and robust diagnostic process for switches fault regardless of the shape of the back-EMFs (harmonic components) and the transient states due to the load variation. Original theoretical developments are presented. Experimental results are shown to validate the proposed strategy.
ACT Conférence internationale avec acte
| Open Switch and Open Phase Real Time FDI Process for Multiphase Synchronous Motor|
ISIE’16, IEEE International Symposium on Industrial Electronics, 06/2016, Abstract
TRABELSI Mohamed, NGUYEN Ngac Ky, SEMAIL Eric, MEINGUET Fabien
This paper deals with the real time Fault Detection and Identification (FDI) process of inverter Open Switch Fault (OSF) and Open Phase Fault (OPF) in five-phase PMSM designed for aerospace applications in which the electric drive system has particular operating characteristics either in healthy states or in the faulty ones. Two original contributions are considered in this paper. They consist in normalizing the input variables of the FDI process applied to multiphase system and compensating the noise (switching and sensors noises) and dc-component resulting from the fault occurrence. The proposed strategy uses multiple normalized criterias derived from the measured phase currents and the voltages obtained from the outputs of the current controllers. The FDI shows an independence with respect to the transient states and to the switching and measurement noises. Moreover, it can be easily included in an existing software without any additional sensors. The validity of the proposed method is verified by Matlab/Simulink simulation tests.
| Open Switch Fault Effects Analysis in Five-Phase PMSM Designed for Aerospace Application|
SPEEDAM Symposium, 06/2016, Abstract
TRABELSI Mohamed, SEMAIL Eric, NGUYEN Ngac Ky, MEINGUET Fabien
This paper describes analytical and simulation tools to analyze the effects of Open Switch Fault (OSF) and Open Phase Fault (OPF) on five-phase PMSM designed for aerospace applications. For such applications, the fault tolerance and the reliability of the drive (PMSM and the power converter) are important to take into account for design. The addressed work aims essentially to analyze the dynamic of the measured phase currents in post-fault operation with a real-time fault diagnostic purpose in the VSI. The paper starts with a presentation of the electric drive system structure and its control used in pre-fault and post-fault operation. Then, fault effects analysis (FEA) on the system will be considered. All results are verified analytically and through simulation software using Matlab/Simulink®. The theoretical development and the simulation results show that the five-phase PMSM under inverter faults presents typical characteristics which can be used as better input variables for designing a high performance real-time fault diagnostic and classification process