https://sam.ensam.eu:443 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. Sun, 07 Jun 2026 13:45:09 GMT 2026-06-07T13:45:09Z http://hdl.handle.net/10985/9265 Fault-Tolerant Operation of an Open-End Winding Five-Phase PMSM Drive with Short-Circuit Inverter Fault MEINGUET, Fabien; SEMAIL, Eric; KESTELYN, Xavier; NGUYEN, Ngac Ky Multi-phase machines are well-known for their fault tolerant capability. Star-connected multiphase machines have fault tolerance in open-circuit. For inverter switch short-circuit fault, it is possible to keep a smooth torque of Permanent Magnet Synchronous Machine (PMSM) if the currents of faulty phases are determined and their values are acceptable. This paper investigates fault-tolerant operations of an open-end fivephase drive, i.e. a multi-phase machine fed with a dual-inverter supply. Inverter switch short-circuit fault is considered and handled with a simple solution. Original theoretical developments are presented. Simulation and experimental results validate the proposed strategy. Fri, 01 Jan 2016 00:00:00 GMT http://hdl.handle.net/10985/9265 2016-01-01T00:00:00Z MEINGUET, Fabien SEMAIL, Eric KESTELYN, Xavier NGUYEN, Ngac Ky Multi-phase machines are well-known for their fault tolerant capability. Star-connected multiphase machines have fault tolerance in open-circuit. For inverter switch short-circuit fault, it is possible to keep a smooth torque of Permanent Magnet Synchronous Machine (PMSM) if the currents of faulty phases are determined and their values are acceptable. This paper investigates fault-tolerant operations of an open-end fivephase drive, i.e. a multi-phase machine fed with a dual-inverter supply. Inverter switch short-circuit fault is considered and handled with a simple solution. Original theoretical developments are presented. Simulation and experimental results validate the proposed strategy. http://hdl.handle.net/10985/9276 Inversion-based control of electromechanical systems using causal graphical descriptions BARRE, Pierre-Jean; BOUSCAYROL, Alain; DELARUE, Philippe; DUMETZ, Eric; GIRAUD, Frédéric; HAUTIER, Jean-Paul; LEMAIRE-SEMAIL, Betty; SEMAIL, Eric; KESTELYN, Xavier Causal Ordering Graph and Energetic Macroscopic Representation are graphical descriptions to model electromechanical systems using integral causality. Inversion rules have been defined in order to deduce control structure step-bystep from these graphical descriptions. These two modeling tools can be used together to develop a two-layer control of system with complex parts. A double-drive paper system is taken as an example. The deduced control yields good performances of tension regulation and velocity tracking. Sun, 01 Jan 2006 00:00:00 GMT http://hdl.handle.net/10985/9276 2006-01-01T00:00:00Z BARRE, Pierre-Jean BOUSCAYROL, Alain DELARUE, Philippe DUMETZ, Eric GIRAUD, Frédéric HAUTIER, Jean-Paul LEMAIRE-SEMAIL, Betty SEMAIL, Eric KESTELYN, Xavier Causal Ordering Graph and Energetic Macroscopic Representation are graphical descriptions to model electromechanical systems using integral causality. Inversion rules have been defined in order to deduce control structure step-bystep from these graphical descriptions. These two modeling tools can be used together to develop a two-layer control of system with complex parts. A double-drive paper system is taken as an example. The deduced control yields good performances of tension regulation and velocity tracking. http://hdl.handle.net/10985/6794 Flux-weakening operation of open-end winding drive integrating a cost effective high-power charger SANDULESCU, Paul; MEINGUET, Fabien; BRUYERE, Antoine; SEMAIL, Eric; KESTELYN, Xavier In this paper, a three-phase drive with a six-leg Voltage Source Inverter (VSI) and an open-end winding Interior Permanent Magnet Synchronous Machine (IPMSM) designed for the traction of an electric vehicle is studied in flux-weakening operation. The topology allows the functionality of a high power charger to be obtained, without adding any other supplementary power devices. On the other hand, since there are three independent currents, the control structure has to handle not only the two dq current components but also a zero-sequence current. If neglected, in comparison with wye-coupled three-phase drive, this zero-sequence component can cause a higher maximum peak value of the phase currents, additional stator Joule losses, torque ripple, inverter voltage saturation and IGBT oversizing. The proposed control strategy consists in adapting a conventional method used for wye-connected machines particularly in flux-weakening operation. This strategy allows the closed-loop control of the zero-sequence current to be maintained in the whole speed range and therefore inverter saturation is avoided. Simulations and experimental results are presented and analyzed. Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/6794 2013-01-01T00:00:00Z SANDULESCU, Paul MEINGUET, Fabien BRUYERE, Antoine SEMAIL, Eric KESTELYN, Xavier In this paper, a three-phase drive with a six-leg Voltage Source Inverter (VSI) and an open-end winding Interior Permanent Magnet Synchronous Machine (IPMSM) designed for the traction of an electric vehicle is studied in flux-weakening operation. The topology allows the functionality of a high power charger to be obtained, without adding any other supplementary power devices. On the other hand, since there are three independent currents, the control structure has to handle not only the two dq current components but also a zero-sequence current. If neglected, in comparison with wye-coupled three-phase drive, this zero-sequence component can cause a higher maximum peak value of the phase currents, additional stator Joule losses, torque ripple, inverter voltage saturation and IGBT oversizing. The proposed control strategy consists in adapting a conventional method used for wye-connected machines particularly in flux-weakening operation. This strategy allows the closed-loop control of the zero-sequence current to be maintained in the whole speed range and therefore inverter saturation is avoided. Simulations and experimental results are presented and analyzed. http://hdl.handle.net/10985/6897 Control of Non-conventional Synchronous Motors SEMAIL, Eric; KESTELYN, Xavier This chapter is devoted to the modeling and control of electrical machines having at least two independent statoric currents. The star-coupled three-phase machine without a neutral terminal or the triangle-coupled three-phase machine is the most basic of them. More precisely, the aim of this chapter is to emphasize the particularities created by a number of independent currents greater than two with respect to the classical three-phase machine. Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/10985/6897 2012-01-01T00:00:00Z SEMAIL, Eric KESTELYN, Xavier This chapter is devoted to the modeling and control of electrical machines having at least two independent statoric currents. The star-coupled three-phase machine without a neutral terminal or the triangle-coupled three-phase machine is the most basic of them. More precisely, the aim of this chapter is to emphasize the particularities created by a number of independent currents greater than two with respect to the classical three-phase machine. http://hdl.handle.net/10985/6896 Modélisation vectorielle et commande de machines polyphasées à pôles lisses alimentées par onduleur de tension SEMAIL, Eric; KESTELYN, Xavier Ce chapitre traite de la modélisation et de la commande de machines électriques à plus de deux courants indépendants alimentées par onduleur de tension. Une approche vectorielle générale permettant de généraliser le concept de machine diphasée équivalente utilisé pour les machines triphasées est présentée et appliquée au cas d’une machine synchrone prototype à aimants permanents cinq phases alimentée soit par 5 bras d’onduleurs. Fri, 01 Jan 2010 00:00:00 GMT http://hdl.handle.net/10985/6896 2010-01-01T00:00:00Z SEMAIL, Eric KESTELYN, Xavier Ce chapitre traite de la modélisation et de la commande de machines électriques à plus de deux courants indépendants alimentées par onduleur de tension. Une approche vectorielle générale permettant de généraliser le concept de machine diphasée équivalente utilisé pour les machines triphasées est présentée et appliquée au cas d’une machine synchrone prototype à aimants permanents cinq phases alimentée soit par 5 bras d’onduleurs. http://hdl.handle.net/10985/11197 Variable speed Control under Voltage and Current Limits of a 5-phase PMSM drive in Healthy and Open-Circuited Modes FALL, Ousmane; CHARPENTIER, Jean-Frederic; LETELLIER, Paul; SEMAIL, Eric; KESTELYN, Xavier; NGUYEN, Ngac Ky This paper proposes a novel variable speed control strategy of a particular 5-phase Permanent Magnet Synchronous Generator (PMSG) in healthy and faulty modes by taking into account the constraints on voltages and currents. These constraints are related to the converter and machine design. The considered faults are open-circuited phases (one phase, two adjacent phases and two non-adjacent phases). A variable speed control strategy is presented, including flux weakening operations. Based on analytical formulations, a numerical computation is proposed to bring out the torque−speed characteristics. This method allows the determination of the current references which ensure the functioning of a 5-phase PMSG at variable speed while keeping phase voltages and currents below their limits. Theoretical, numerical and experimental results are presented. These results are compared in order to validate the proposed approach. Fri, 01 Jan 2016 00:00:00 GMT http://hdl.handle.net/10985/11197 2016-01-01T00:00:00Z FALL, Ousmane CHARPENTIER, Jean-Frederic LETELLIER, Paul SEMAIL, Eric KESTELYN, Xavier NGUYEN, Ngac Ky This paper proposes a novel variable speed control strategy of a particular 5-phase Permanent Magnet Synchronous Generator (PMSG) in healthy and faulty modes by taking into account the constraints on voltages and currents. These constraints are related to the converter and machine design. The considered faults are open-circuited phases (one phase, two adjacent phases and two non-adjacent phases). A variable speed control strategy is presented, including flux weakening operations. Based on analytical formulations, a numerical computation is proposed to bring out the torque−speed characteristics. This method allows the determination of the current references which ensure the functioning of a 5-phase PMSG at variable speed while keeping phase voltages and currents below their limits. Theoretical, numerical and experimental results are presented. These results are compared in order to validate the proposed approach. http://hdl.handle.net/10985/6817 Signal-based Technique for Fault Detection and Isolation of Inverter Faults in Multi-phase Drives MEINGUET, Fabien; SANDULESCU, Paul; ASLAN, Bassel; LU, Li; SEMAIL, Eric; KESTELYN, Xavier; NGUYEN, Ngac Ky A method for fault detection and isolation is proposed and applied to inverter faults in multi-phase drives. An analysis of simulations in faulty conditions leads to the derivation of suitable fault indices. These are based on the unbalance of the phase currents and their instantaneous frequency. The method is applied to a five-phase permanent-magnet synchronous machine drive. Simulations and experiments validate the proposed method. Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/10985/6817 2012-01-01T00:00:00Z MEINGUET, Fabien SANDULESCU, Paul ASLAN, Bassel LU, Li SEMAIL, Eric KESTELYN, Xavier NGUYEN, Ngac Ky A method for fault detection and isolation is proposed and applied to inverter faults in multi-phase drives. An analysis of simulations in faulty conditions leads to the derivation of suitable fault indices. These are based on the unbalance of the phase currents and their instantaneous frequency. The method is applied to a five-phase permanent-magnet synchronous machine drive. Simulations and experiments validate the proposed method. http://hdl.handle.net/10985/7421 Fault-Tolerant Operation of an Open-End Winding Five-Phase PMSM Drive with Inverter Faults MEINGUET, Fabien; SANDULESCU, Paul; SEMAIL, Eric; KESTELYN, Xavier; NGUYEN, Ngac Ky Multi-phase machines are known for their fault-tolerant capability. However, star-connected machines have no fault tolerance to inverter switch short-circuit fault. This paper investigates the fault-tolerant operation of an open-end five-phase drive, i.e. a multi-phase machine fed with a dual-inverter supply. Open-circuit faults and inverter switch short-circuit faults are considered and handled with various degrees of reconfiguration. Theoretical developments and experimental results validate the proposed strategies. The authors would like to thank the ADEME for the funding of the MHYGALE project. Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/7421 2013-01-01T00:00:00Z MEINGUET, Fabien SANDULESCU, Paul SEMAIL, Eric KESTELYN, Xavier NGUYEN, Ngac Ky Multi-phase machines are known for their fault-tolerant capability. However, star-connected machines have no fault tolerance to inverter switch short-circuit fault. This paper investigates the fault-tolerant operation of an open-end five-phase drive, i.e. a multi-phase machine fed with a dual-inverter supply. Open-circuit faults and inverter switch short-circuit faults are considered and handled with various degrees of reconfiguration. Theoretical developments and experimental results validate the proposed strategies. http://hdl.handle.net/10985/6728 A Method for Fault Detection and Isolation based on the Processing of Multiple Diagnostic Indices: Application to Inverter Faults in AC Drives MEINGUET, Fabien; SANDULESCU, Paul; SEMAIL, Eric; KESTELYN, Xavier A general method for fault detection and isolation is proposed and applied to inverter faults in drives of electric vehicles. This method is based on a change-detection algorithm, which allows multiple fault indices to be combined for retrieving the most likely state of the drive. The drive topology under study is a six-leg inverter associated with a three-phase open-end winding machine. Due to the inherent fault-tolerant topology, the conventional fault indices are no longer effective. Therefore, an analysis of simulations in faulty conditions leads to the derivation of suitable fault indices. These are based on the envelope of the phase currents as well as their instantaneous frequency. Specific operating conditions related to the electric vehicle environment are taken into account, such as the flux-weakening region and energy recovery. In these modes of operation, fault detection and isolation can be affected by uncontrolled currents circulating through the free-wheeling diodes. Finally, the performances of the fault detection and isolation scheme are evaluated under steady state and non-stationary conditions through simulations and experimental results. Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/6728 2013-01-01T00:00:00Z MEINGUET, Fabien SANDULESCU, Paul SEMAIL, Eric KESTELYN, Xavier A general method for fault detection and isolation is proposed and applied to inverter faults in drives of electric vehicles. This method is based on a change-detection algorithm, which allows multiple fault indices to be combined for retrieving the most likely state of the drive. The drive topology under study is a six-leg inverter associated with a three-phase open-end winding machine. Due to the inherent fault-tolerant topology, the conventional fault indices are no longer effective. Therefore, an analysis of simulations in faulty conditions leads to the derivation of suitable fault indices. These are based on the envelope of the phase currents as well as their instantaneous frequency. Specific operating conditions related to the electric vehicle environment are taken into account, such as the flux-weakening region and energy recovery. In these modes of operation, fault detection and isolation can be affected by uncontrolled currents circulating through the free-wheeling diodes. Finally, the performances of the fault detection and isolation scheme are evaluated under steady state and non-stationary conditions through simulations and experimental results. http://hdl.handle.net/10985/11198 Adaline Neural Networks-based Sensorless Control of Five-Phase PMSM Drives DE BELIE, Frederic; SEMAIL, Eric; KESTELYN, Xavier; NGUYEN, Ngac Ky This papers presents a sensorless control for fivephase PM synchronous machines. An adaptive method, based on a linear neural network called Adaline (Adaptive Linear Neural Networks), has been achieved to estimate the rotor position with a high precision even at low speed without high frequency signal injection. Non-sinusoidal three-phase PM machines require more complex algorithm for sensorless control because of harmonics in the back-EMF. This is not the case for multiphase PM machines thanks to the property of equivalent machines in the eigenspace. Some given simulation and experimental results in laboratory confirm the possibility of real-time implementation of Adaline networks and the good performance of sensorless control based on this. Fri, 01 Jan 2016 00:00:00 GMT http://hdl.handle.net/10985/11198 2016-01-01T00:00:00Z DE BELIE, Frederic SEMAIL, Eric KESTELYN, Xavier NGUYEN, Ngac Ky This papers presents a sensorless control for fivephase PM synchronous machines. An adaptive method, based on a linear neural network called Adaline (Adaptive Linear Neural Networks), has been achieved to estimate the rotor position with a high precision even at low speed without high frequency signal injection. Non-sinusoidal three-phase PM machines require more complex algorithm for sensorless control because of harmonics in the back-EMF. This is not the case for multiphase PM machines thanks to the property of equivalent machines in the eigenspace. Some given simulation and experimental results in laboratory confirm the possibility of real-time implementation of Adaline networks and the good performance of sensorless control based on this.