Fiche individuelle
Mario BERMUDEZ GUZMAN | ||
Titre | Doctorant | |
Equipe | Commande | |
Adresse | Arts et Métiers ParisTech - Campus Lille 8, boulevard Louis XIV 59046 LILLE CEDEX | |
Mario.BERMUDEZ-GUZMAN@ensam.eu | ||
Publications |
ACLI Revue internationale avec comité de lecture |
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[1] Predictive controller considering electrical constraints: a case example for five-phase induction machines IET Electric Power Applications, N°. 13 (8), pages. 1079-1088, 08/2019, URL, Abstract BERMUDEZ GUZMAN Mario, MARTÍN Cristina, BARRERO Federico, KESTELYN Xavier |
The modern control of power drives involves the consideration of electrical constraints in the regulator strategy,
including voltage/current limits imposed by the power converter and the electrical machine, or magnetic saturation due to
the iron core. This issue has been extensively analysed in conventional three-phase drives but rarely studied in multiphase
ones, despite the current interest of the multiphase technology in high-power density, wide speed range or fault-tolerant
applications. In this paper, a generalised controller using model-based predictive control techniques is introduced. The
proposal is based on two cascaded predictive stages. First, a continuous stage generates the optimal stator current reference
complying with the electrical limits of the drive to exploit its maximum performance characteristic. Then, a finite-control-set
predictive controller regulates the stator current and generates the switching state in the power converter. A five-phase
induction machine with concentrated windings is used as modern high-performance drive case example. This is a common
multiphase drive that can be considered as a system with two frequency-domain control subspaces, where fundamental and
third harmonic currents are orthogonal components involved in the torque production. Experimental results are provided to
analyse the proposed controller, where optimal reference currents are generated and steady/transient states are studied. |
[2] Model predictive optimal control considering current and voltage limitations: Real-time validation using OPAL-RT technologies and five-phase permanent magnet synchronous machines Mathematics and Computers in Simulation, Vol. 158, pages. 148-161, 04/2019, URL, Abstract BERMUDEZ GUZMAN Mario, GOMOZOV Oleg, KESTELYN Xavier, BARRERO Federico, NGUYEN Ngac Ky, SEMAIL Eric |
Multiphase machines have recently gained interest in the research community for their use in applications where high power density, wide speed range and fault-tolerant capabilities are required. The optimal control of such drives requires the consideration of voltage and current limits imposed by the power converter and the machine. While conventional three-phase drives have been extensively analyzed taking into account such limits, the same cannot be said in the multiphase drives’ case. This paper deals with this issue, where a novel two-stage Model Predictive optimal Control (2S-MPC) technique is presented, and a five-phase permanent magnet synchronous multiphase machine (PMSM) is used as a case example. The proposed method first applies a Continuous-Control-Set Model Predictive Control (CCS-MPC) stage to obtain the optimal real-time stator current reference for given DC-link voltage and stator current limits, exploiting the maximum performance characteristics of the multiphase drive. Then, a Finite-Control-Set Model Predictive Control (FCS-MPC) stage is utilized to generate the switching state in the power converter and force the stator current tracking. An experimental validation of the proposed controller is finally provided using a real-time simulation environment based on OPAL-RT technologies. |
[3] An Experimental Assessment of Open-Phase Fault-Tolerant Virtual Vector Based Direct Torque Control in Five-Phase Induction Motor Drives IEEE Transactions on Power Electronics, Vol. 33, N°. 3, pages. 2774-2784, 03/2018, URL, Abstract BERMUDEZ GUZMAN Mario, GONZALEZ-PRIETO Ignacio, BARRERO Federico, GUZMAN Hugo, KESTELYN Xavier, DURAN Mario |
Direct torque control (DTC) has been recently used for the development of high performance five-phase induction motor (IM) drives, where normal operation of the system has been usually considered and the ability of DTC to manage the situation has been analyzed in comparison with different rotor field-oriented control (RFOC) strategies. The exploitation of fault-tolerant capabilities is also an interesting issue in multiphase machines, where the utility of RFOC controllers has been stated when the open-phase fault operation is considered. In this paper, the performance of DTC and RFOC controllers based on proportional resonant regulators and predictive control techniques is compared when an open-phase fault appears in a five-phase IM drive. Experimental tests are provided to compare the performance of the system using these control alternatives. |
[4] Sensitivity of predictive controllers to parameter variation in five-phase induction motor drives Control Engineering Practice, Vol. 68, pages. 23-31, 11/2017, URL, Abstract MARTÍN Cristina, BERMUDEZ GUZMAN Mario, BARRERO Federico, R. ARAHAL Manuel, KESTELYN Xavier, DURAN Mario |
Model predictive control techniques have been recently proposed as a viable control alternative for power converters and electrical drives. The good current tracking, flexible control design or reduced switching losses are some of the benefits that explain the recently increased attention on finite-control-set model predictive control. The performance of the predictive model of the drive, which is the core of the predictive control, highly depends on the parameters of the real system. In this context, most research works assume good agreement between electrical parameters of the predictive model and the real machine, on the basis of nominal values. Nevertheless, this is far from being a real assumption, where non-modeled variables (i.e. the temperature, the magnetic saturation or the deep-bar effect) produce a detuning effect between the real system and its model, which can harm the control performance. The influence of parameter variations on the predictive control has barely been investigated in recent research works, where only conventional three-phase power converter configurations and permanent magnet drives have been taken into account. However, there is a lack of knowledge when different technologies like induction machines or multiphase drives are considered. It is worth highlighting the interest of the industry in induction motors as a mature technology or in multiphase drives as a promising alternative in applications where high overall system reliability and reduction in the total power per phase are required. This paper attempts to fill this gap by examining the impact of parameters mismatch on the finite-control-set predictive control performance of a five-phase induction motor drive, one of the multiphase electromechanical conversion systems with greatest impact in the research community. An exhaustive experimental sensitivity analysis of the close loop system performance based on more than three hundred trials in a test bench is presented. |
[5] Open-Phase Fault-Tolerant Direct Torque Control Technique for Five-Phase Induction Motor Drives IEEE Transactions on Industrial Electronics, Vol. 64, N°. 2, pages. 902-911, 02/2017, URL, Abstract BERMUDEZ GUZMAN Mario, GONZALEZ-PRIETO Ignacio, BARRERO Federico, GUZMAN Hugo, DURAN Mario, KESTELYN Xavier |
Direct torque control (DTC) has been widely used as an alternative to traditional field-oriented control (FOC) methods for three-phase drives. The conventional DTC scheme has been successfully extended to multiphase drives in recent times, using hysteresis regulators to independently track the desired torque and flux in symmetrical five-phase induction machines (IM). The fault-tolerant capability of multiphase drives is an interesting intrinsic advantage for safety-critical applications, where recent research has demonstrated the effectiveness of FOC schemes to perform ripple-free post-fault operation. In spite of the utility of DTC methods in normal operation of the multiphase machine, no extension to manage the post-fault operation of the drive is found in the literature. In this paper, a novel fault-tolerant DTC scheme is presented. The performance of the proposed method is experimentally validated in a five-phase IM drive considering an open-phase fault condition. Provided tests analyze steady and transient states, including the transition from pre- to post-fault operation. Obtained results prove the interest of the proposal, which ensures the open-phase fault-tolerant capability of DTC controlled five-phase IM drives. |
ACT Conférence internationale avec acte |
[1] Real-Time Validation of a Cascaded Model Predictive Control Technique for a Five-Phase Permanent Magnet Synchronous Machine under Current and Voltage Limits ELECTRIMACS 2017, Toulouse, France, 07/2017, URL, Abstract BERMUDEZ GUZMAN Mario, GOMOZOV Oleg, KESTELYN Xavier, NGUYEN Ngac Ky, SEMAIL Eric, BARRERO Federico |
Multiphase machines have recently gained importance in the research community for their use in applications where high power density, wide speed range and fault-tolerant capabilities are needed. The optimal control of such drives requires to consider voltage and current constraints imposed by the power converter and the machine itself. If classical three-phase drives have been optimally controlled under such limits for a long time, the same cannot be said in the case of multiphase drives. This paper deals with this issue, where an optimal control technique based on Cascaded Model Predictive Controls (MPC) is presented for a five-phase permanent magnet synchronous machine (PMSM). A Continuous-Control-Set MPC (CCS-MPC) numerically computes optimal current references in real-time in order to exploit the maximum performance for given DC bus voltage and current limits. Then, a Finite-Control-Set MPC (FCS-MPC) is used to carry out the current control in the machine, directly applying the switching state that minimizes a cost function related to the current tracking. Obtained mixed microprocessor-based and FPGA-based real-time simulations prove the interest of the proposal, which ensures the optimal control of the multiphase drive operating under current and voltage constraints. |
[2] Comparative study of DTC and RFOC methods for the open-phase fault operation of a 5-phase induction motor drive Industrial Electronics Society, IECON 2015 - 41st Annual Conference of the IEEE, 11/2015, URL, Abstract BERMUDEZ GUZMAN Mario, GUZMAN Hugo, GONZALEZ-PRIETO Ignacio, BARRERO Federico, DURAN Mario, KESTELYN Xavier |
Direct Torque Control (DTC) technique has been applied in recent times in high performance five-phase induction motor drives during the normal operation of the system. The use of DTC in the multiphase area is far from becoming a reality because it has not been used in competitive multiphase applications where the fault operation needs to be considered. The authors have successfully tested the ability of DTC controllers to manage the open-phase fault operation in a five-phase induction motor drive. However, the conclusion of the mentioned study must be completed comparing the obtained results with other mature alternatives based on field oriented controllers. This paper focuses on the comparative analysis of DTC and Rotor Field Oriented Control (RFOC) when an open-phase fault appears in the five-phase induction motor drive. Simulation results are provided to compare the performance of the system using these control alternatives. |
[3] Open-phase fault operation of 5-phase induction motor drives using DTC techniques Industrial Electronics Society, IECON 2015 - 41st Annual Conference of the IEEE, 11/2015, URL, Abstract BERMUDEZ GUZMAN Mario, GONZALEZ-PRIETO Ignacio, BARRERO Federico, DURAN Mario, KESTELYN Xavier |
Direct torque control (DTC) is extensively used in conventional three-phase drives as an alternative to field-oriented control methods. The standard DTC technique was originally designed to regulate two independent variables using hysteresis controllers. Recent works have extended the procedure for five-phase drives in healthy operation accounting for the additional degrees of freedom. Although one of the main advantages of multiphase machines is the ability to continue the operation in faulty conditions, the utility of DTC after the appearance of a fault has not been covered in the literature yet. This paper analyses the operation of a five-phase induction motor drive in faulty situation using a DTC controller. An open-phase fault condition is considered, and simulation results are provided to study the performance of the drive, comparing with the behavior during healthy state. |
TH Thèse |
[1] Novel control techniques in multiphase drives : direct control methods (DTC and MPC) under limit situations Thèse, 12/2018, URL, Abstract BERMUDEZ GUZMAN Mario |
Les entraînements électriques polyphasés ont acquis une importance particulière ces derniers temps pour leur utilisation dans des applications où la fiabilité présente un intérêt pour des raisons économiques et de sécurité. Cette thèse se centre sur le développement de techniques de commande en mode instantané pour contrôler de manière optimale les machines polyphasées, en analysant leur tolérance dans différentes conditions de fonctionnement, telles que lors de l’atteinte de limites électriques (limites de tension, de courant et de niveau maximum de magnétisation) ou de défauts de type phase ouverte. Tout d’abord, la technique DTC est proposée pour gérer le cas de défaut de type phase ouverte dans la machine polyphasée. Une comparaison de la tolérance à la défaillance des commandes de type DTC par rapport à d’autres techniques de commande est réalisée, permettant une conclusion sur les forces et les faiblesses des méthodes analysées. Enfin, un contrôleur de courant optimal est développé utilisant des techniques MPC permettant une utilisation optimale de la capacité de couple du système en cas de limitations électriques. Des résultats de simulation et des validations expérimentales sont effectués pour corroborer les approches initiales, en utilisant des cas particuliers d’entraînements pentaphasés commandés avec différents sous-espaces de commande dans le domaine fréquentiel. |
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