https://sam.ensam.eu:443 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. Mon, 15 Jun 2026 23:23:24 GMT 2026-06-15T23:23:24Z http://hdl.handle.net/10985/8676 Experimental Validation of a Marine Current Turbine Simulator: Application to a Permanent Magnet Synchronous Generator-Based System Second-Order Sliding Mode Control BENELGHALI, Seifeddine; BENBOUZID, Mohamed; CHARPENTIER, Jean-Frederic; AHMED-ALI, Tarek; MANTEANU, Julian This paper deals with the experimental validation of a Matlab-Simulink simulation tool of marine current turbine (MCT) systems. The developed simulator is intended to be used as a sizing and site evaluation tool for MCT installations. For that purpose, the simulator is evaluated within the context of speed control of a permanent magnet synchronous generatorbased (PMSG) MCT. To increase the generated power, and therefore the efficiency of an MCT, a nonlinear controller has been proposed. PMSG has been already considered for similar applications, particularly wind turbine systems using mainly PI controllers. However, such kinds of controllers do not adequately handle some of tidal resource characteristics such as turbulence and swell effects. Moreover, PMSG parameter variations should be accounted for. Therefore, a robust nonlinear control strategy, namely second-order sliding mode control, is proposed. The proposed control strategy is inserted in the simulator that accounts for the resource and the marine turbine models. Simulations using tidal current data from Raz de Sein (Brittany, France) and experiments on a 7.5-kW real-time simulator are carried out for the validation of the simulator. Sat, 01 Jan 2011 00:00:00 GMT http://hdl.handle.net/10985/8676 2011-01-01T00:00:00Z BENELGHALI, Seifeddine BENBOUZID, Mohamed CHARPENTIER, Jean-Frederic AHMED-ALI, Tarek MANTEANU, Julian This paper deals with the experimental validation of a Matlab-Simulink simulation tool of marine current turbine (MCT) systems. The developed simulator is intended to be used as a sizing and site evaluation tool for MCT installations. For that purpose, the simulator is evaluated within the context of speed control of a permanent magnet synchronous generatorbased (PMSG) MCT. To increase the generated power, and therefore the efficiency of an MCT, a nonlinear controller has been proposed. PMSG has been already considered for similar applications, particularly wind turbine systems using mainly PI controllers. However, such kinds of controllers do not adequately handle some of tidal resource characteristics such as turbulence and swell effects. Moreover, PMSG parameter variations should be accounted for. Therefore, a robust nonlinear control strategy, namely second-order sliding mode control, is proposed. The proposed control strategy is inserted in the simulator that accounts for the resource and the marine turbine models. Simulations using tidal current data from Raz de Sein (Brittany, France) and experiments on a 7.5-kW real-time simulator are carried out for the validation of the simulator. http://hdl.handle.net/10985/8708 A Comparative Study of Time-Frequency Representations for Fault Detection in Wind Turbine EL BOUCHIKHI, EL HOUSSIN; CHOQUEUSE, Vincent; BENBOUZID, Mohamed; CHARPENTIER, Jean-Frederic; BARAKAT, Georges To reduce the cost of wind energy, minimization and prediction of maintenance operations in wind turbine is of key importance. In variable speed turbine generator, advanced signal processing tools are required to detect and diagnose the generator faults from the stator current. To detect a fault in non-stationary conditions, previous studies have investigated the use of time-frequency techniques such as the Spectrogram, the Wavelet transform, the Wigner-Ville representation and the Hilbert-Huang transform. In this paper, these techniques are presented and compared for broken-rotor bar detection in squirrel-cage generators. The comparison is based on several criteria such as the computational complexity, the readability of the representation and the easiness of interpretation Sat, 01 Jan 2011 00:00:00 GMT http://hdl.handle.net/10985/8708 2011-01-01T00:00:00Z EL BOUCHIKHI, EL HOUSSIN CHOQUEUSE, Vincent BENBOUZID, Mohamed CHARPENTIER, Jean-Frederic BARAKAT, Georges To reduce the cost of wind energy, minimization and prediction of maintenance operations in wind turbine is of key importance. In variable speed turbine generator, advanced signal processing tools are required to detect and diagnose the generator faults from the stator current. To detect a fault in non-stationary conditions, previous studies have investigated the use of time-frequency techniques such as the Spectrogram, the Wavelet transform, the Wigner-Ville representation and the Hilbert-Huang transform. In this paper, these techniques are presented and compared for broken-rotor bar detection in squirrel-cage generators. The comparison is based on several criteria such as the computational complexity, the readability of the representation and the easiness of interpretation http://hdl.handle.net/10985/8684 Generator Systems for Marine Current Turbine Applications: A Comparative Study BENELGHALI, Seifeddine; BENBOUZID, Mohamed; CHARPENTIER, Jean-Frederic Emerging technologies for marine current turbines are mainly related to works that have been carried out on wind turbines and ship propellers. It is then obvious that many electric generator topologies could be used for marine current turbines. As in the wind turbine context, doubly-fed induction generators and permanent magnet generators seem to be attractive solutions for harnessing the tidal current energy. In this paper, a comparative study between these two generator types is presented and fully analyzed in terms of generated power, maintenance, and operation constraints. This comparison is done for the Raz de Sein site (Brittany, France) using a multiphysics modeling simulation tool. This tool integrates, in a modular environment, the resource model, the turbine hydrodynamicmodel, and generator models. Experiments have also been carried out to confirm the simulation results. Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/10985/8684 2012-01-01T00:00:00Z BENELGHALI, Seifeddine BENBOUZID, Mohamed CHARPENTIER, Jean-Frederic Emerging technologies for marine current turbines are mainly related to works that have been carried out on wind turbines and ship propellers. It is then obvious that many electric generator topologies could be used for marine current turbines. As in the wind turbine context, doubly-fed induction generators and permanent magnet generators seem to be attractive solutions for harnessing the tidal current energy. In this paper, a comparative study between these two generator types is presented and fully analyzed in terms of generated power, maintenance, and operation constraints. This comparison is done for the Raz de Sein site (Brittany, France) using a multiphysics modeling simulation tool. This tool integrates, in a modular environment, the resource model, the turbine hydrodynamicmodel, and generator models. Experiments have also been carried out to confirm the simulation results. http://hdl.handle.net/10985/8981 An Up - to - Date Review of Large Marine Tidal Current Turbine Technologies ZHOU, Zhibin; SCUILLER, Franck; CHARPENTIER, Jean-Frederic; BENBOUZID, Mohamed; TANG, Tianhao Owning to the predictability of tidal current resources, marine tidal current energy is considered to be a reliable and promising renewable power source for coastal areas or some remote islands. During the last 10 years, various original horizontal axis and vertical axis marine current turbines (MCT) have been developed around the world. Although various projects have been reported in the state-of-the-art research papers in recent years, many of these projects were only at the design stage when the papers were published. In fact, some projects do not have any further developments during the several years after the first reporting. In this paper, up-to-date information about large tidal turbine projects over 500 kW is focused. The newest achievements of these large tidal current turbine technologies are presented. These technologies represent the industrial solutions for several pre-commercial MCT farm projects in the coming years. This paper provides a useful background for researchers in the marine turbine energy domain. Wed, 01 Jan 2014 00:00:00 GMT http://hdl.handle.net/10985/8981 2014-01-01T00:00:00Z ZHOU, Zhibin SCUILLER, Franck CHARPENTIER, Jean-Frederic BENBOUZID, Mohamed TANG, Tianhao Owning to the predictability of tidal current resources, marine tidal current energy is considered to be a reliable and promising renewable power source for coastal areas or some remote islands. During the last 10 years, various original horizontal axis and vertical axis marine current turbines (MCT) have been developed around the world. Although various projects have been reported in the state-of-the-art research papers in recent years, many of these projects were only at the design stage when the papers were published. In fact, some projects do not have any further developments during the several years after the first reporting. In this paper, up-to-date information about large tidal turbine projects over 500 kW is focused. The newest achievements of these large tidal current turbine technologies are presented. These technologies represent the industrial solutions for several pre-commercial MCT farm projects in the coming years. This paper provides a useful background for researchers in the marine turbine energy domain. http://hdl.handle.net/10985/8968 Power Control of a Nonpitchable PMSG-Based Marine Current Turbine at Overrated Current Speed With Flux-Weakening Strategy ZHOU, Zhibin; SCUILLER, Franck; CHARPENTIER, Jean-Frederic; BENBOUZID, Mohamed; TANG, Tianhao This paper deals with power control strategies for a fixed-pitch direct drive marine current turbine (MCT) when the marine current velocity exceeds the rated value corresponding to the MCT nominal power. At over-rated marine current speed, the MCT control strategy is supposed to be changed from maximum power point tracking (MPPT) stage to constant power stage. In this paper, flux-weakening strategy is investigated to realize appropriate power control strategies at high marine current speeds. During flux-weakening operations, the generator can be controlled to produce nominal or over-nominal power for a specific speed range (constant power range). These two power control modes are compared and the constant power range is calculated in this paper. The relationship between the expected constant power range and generator parameters requirement (stator inductance, permanent magnet flux, nominal power coefficient) is analyzed in this paper. A Torque-based control with a robust feedback flux-weakening strategy is then carried out in the simulation. The proposed control strategies are tested in both high tidal speed and swell wave cases; the results validate the analysis and show the feasibility of the proposed control method. Wed, 01 Jan 2014 00:00:00 GMT http://hdl.handle.net/10985/8968 2014-01-01T00:00:00Z ZHOU, Zhibin SCUILLER, Franck CHARPENTIER, Jean-Frederic BENBOUZID, Mohamed TANG, Tianhao This paper deals with power control strategies for a fixed-pitch direct drive marine current turbine (MCT) when the marine current velocity exceeds the rated value corresponding to the MCT nominal power. At over-rated marine current speed, the MCT control strategy is supposed to be changed from maximum power point tracking (MPPT) stage to constant power stage. In this paper, flux-weakening strategy is investigated to realize appropriate power control strategies at high marine current speeds. During flux-weakening operations, the generator can be controlled to produce nominal or over-nominal power for a specific speed range (constant power range). These two power control modes are compared and the constant power range is calculated in this paper. The relationship between the expected constant power range and generator parameters requirement (stator inductance, permanent magnet flux, nominal power coefficient) is analyzed in this paper. A Torque-based control with a robust feedback flux-weakening strategy is then carried out in the simulation. The proposed control strategies are tested in both high tidal speed and swell wave cases; the results validate the analysis and show the feasibility of the proposed control method. http://hdl.handle.net/10985/10177 A Simulation Model for the Evaluation of the Electrical Power Potential Harnessed by a Marine Current Turbine BEN ELGHALI, Seif Eddine; BALME, Rémi; LE SAUX, Karine; BENBOUZID, Mohamed; CHARPENTIER, Jean-Frederic; HAUVILLE, Frederic This paper deals with the development of a Matlab–Simulink model of a marine current turbine system through the modeling of the resource and the rotor. The simulation model has two purposes: performances and dynamic loads evaluation in different operating conditions and control system development for turbine operation based on pitch and speed control. In this case, it is necessary to find a compromise between the simulation model accuracy and the control-loop computational speed. The blade element momentum (BEM) approach is then used for the turbine modeling. As the developed simulation model is intended to be used as a sizing and site evaluation tool for current turbine installations, it has been applied to evaluate the extractable power from the Raz de Sein (Brittany, France). Indeed, tidal current data from the Raz de Sein are used to run the simulation model over various flow regimes and yield the power capture with time. Mon, 01 Jan 2007 00:00:00 GMT http://hdl.handle.net/10985/10177 2007-01-01T00:00:00Z BEN ELGHALI, Seif Eddine BALME, Rémi LE SAUX, Karine BENBOUZID, Mohamed CHARPENTIER, Jean-Frederic HAUVILLE, Frederic This paper deals with the development of a Matlab–Simulink model of a marine current turbine system through the modeling of the resource and the rotor. The simulation model has two purposes: performances and dynamic loads evaluation in different operating conditions and control system development for turbine operation based on pitch and speed control. In this case, it is necessary to find a compromise between the simulation model accuracy and the control-loop computational speed. The blade element momentum (BEM) approach is then used for the turbine modeling. As the developed simulation model is intended to be used as a sizing and site evaluation tool for current turbine installations, it has been applied to evaluate the extractable power from the Raz de Sein (Brittany, France). Indeed, tidal current data from the Raz de Sein are used to run the simulation model over various flow regimes and yield the power capture with time. http://hdl.handle.net/10985/8833 Intégration d’une batterie à circulation pour lisser la puissance quotidienne fournie par une hydrolienne sur un réseau îloté ZHOU, Zhibin; SCUILLER, Franck; CHARPENTIER, Jean-Frederic; BENBOUZID, Mohamed En raison de la prévisibilité des courants marins, les hydroliennes apparaissent a priori comme très attractives en tant que source d’électricité future pour les zones côtières isolées et les îles éloignées situées à proximité de sites à forts courants comme les îles du Ponant au large du Finistère. Cependant la puissance produite par une hydrolienne varie considérablement avec la vitesse des courants marins pendant une journée. Cet article propose d’utiliser une batterie à circulation ou « flow battery » pour faciliter la gestion quotidienne de la puissance d’une hydrolienne et permettre de fournir ainsi une puissance demandée par les utilisateurs d’un réseau électrique isolé. Un générateur diesel de faible puissance est également intégré pour charger la batterie lorsque l’état de charge de la batterie est très bas et que le courant marin est insuffisant pour assurer l’alimentation du réseau et la recharge de la batterie. L’originalité du travail proposé repose ainsi sur l’étude de l’hybridation d’une hydrolienne associée à une batterie à circulation et à un générateur diesel. Wed, 01 Jan 2014 00:00:00 GMT http://hdl.handle.net/10985/8833 2014-01-01T00:00:00Z ZHOU, Zhibin SCUILLER, Franck CHARPENTIER, Jean-Frederic BENBOUZID, Mohamed En raison de la prévisibilité des courants marins, les hydroliennes apparaissent a priori comme très attractives en tant que source d’électricité future pour les zones côtières isolées et les îles éloignées situées à proximité de sites à forts courants comme les îles du Ponant au large du Finistère. Cependant la puissance produite par une hydrolienne varie considérablement avec la vitesse des courants marins pendant une journée. Cet article propose d’utiliser une batterie à circulation ou « flow battery » pour faciliter la gestion quotidienne de la puissance d’une hydrolienne et permettre de fournir ainsi une puissance demandée par les utilisateurs d’un réseau électrique isolé. Un générateur diesel de faible puissance est également intégré pour charger la batterie lorsque l’état de charge de la batterie est très bas et que le courant marin est insuffisant pour assurer l’alimentation du réseau et la recharge de la batterie. L’originalité du travail proposé repose ainsi sur l’étude de l’hybridation d’une hydrolienne associée à une batterie à circulation et à un générateur diesel. http://hdl.handle.net/10985/8867 Pré Dimensionnement d’une machine à flux axial à double stator pour un cahier des charges d’une hydrolienne à entraînement circonférentiel DJEBARRI, Sofiane; CHARPENTIER, Jean-Frederic; BENBOUZID, Mohamed; GUEMARD, Sylvain Dans la présente étude une structure de machine à flux axial à double stator est présentée, un modèle électromagnétique de pré dimensionnement au premier ordre est décrit pour cette structure. Les dimensions principales de cette machine ainsi qu’un modèle thermique sont présentés pour un cahier des charges d’hydrolienne Rim-Driven. Ces structures originales d’hydroliennes, qui ont fait l’objet de précédentes études au laboratoire (IRENav), sont caractérisées par le fait que les parties actives de la machine se situent sur la périphérie de l’hélice. Les volumes des matériaux actifs et le comportement thermique de la machine axiale sont comparés avec une machine radiale à aimants permanents dimensionnée lors de travaux précédents. Cette première étude, montre un intérêt pour ce type de structures poly-entrefer, notamment en termes de compacité. En effet, l’étude démontre que ces machines sont caractérisées par un comportement thermique moins contraignant. Sat, 01 Jan 2011 00:00:00 GMT http://hdl.handle.net/10985/8867 2011-01-01T00:00:00Z DJEBARRI, Sofiane CHARPENTIER, Jean-Frederic BENBOUZID, Mohamed GUEMARD, Sylvain Dans la présente étude une structure de machine à flux axial à double stator est présentée, un modèle électromagnétique de pré dimensionnement au premier ordre est décrit pour cette structure. Les dimensions principales de cette machine ainsi qu’un modèle thermique sont présentés pour un cahier des charges d’hydrolienne Rim-Driven. Ces structures originales d’hydroliennes, qui ont fait l’objet de précédentes études au laboratoire (IRENav), sont caractérisées par le fait que les parties actives de la machine se situent sur la périphérie de l’hélice. Les volumes des matériaux actifs et le comportement thermique de la machine axiale sont comparés avec une machine radiale à aimants permanents dimensionnée lors de travaux précédents. Cette première étude, montre un intérêt pour ce type de structures poly-entrefer, notamment en termes de compacité. En effet, l’étude démontre que ces machines sont caractérisées par un comportement thermique moins contraignant. http://hdl.handle.net/10985/8694 Modeling and Control of a Marine Current Turbine Driven Doubly-Fed Induction Generator BENELGHALI, Seifeddine; BENBOUZID, Mohamed; CHARPENTIER, Jean-Frederic This paper deals with the modeling and the control of a variable speed DFIG-based marine current turbine with and without tidal current speed sensor. The proposed MPPT control strategy relies on the resource and the marine turbine models that were validated by experimental data. The sensitivity of the proposed control strategy is analyzed regarding the swell effect as it is considered as the most disturbing one for the resource model. Tidal current data from the Raz de Sein (Brittany, France) are used to run simulations of a 7.5-kW prototype over various flow regimes. Simulation results are presented and fully analyzed Fri, 01 Jan 2010 00:00:00 GMT http://hdl.handle.net/10985/8694 2010-01-01T00:00:00Z BENELGHALI, Seifeddine BENBOUZID, Mohamed CHARPENTIER, Jean-Frederic This paper deals with the modeling and the control of a variable speed DFIG-based marine current turbine with and without tidal current speed sensor. The proposed MPPT control strategy relies on the resource and the marine turbine models that were validated by experimental data. The sensitivity of the proposed control strategy is analyzed regarding the swell effect as it is considered as the most disturbing one for the resource model. Tidal current data from the Raz de Sein (Brittany, France) are used to run simulations of a 7.5-kW prototype over various flow regimes. Simulation results are presented and fully analyzed http://hdl.handle.net/10985/10013 Island Power Management using a Marine Current Turbine Farm and an Ocean Compressed Air Energy Storage System SHENG, Lei; ZHOU, Zhibin; CHARPENTIER, Jean-Frederic; BENBOUZID, Mohamed Due to the high predictability and the high energy density, marine tidal resource has become an area of increasing interest with various academic and industrial projects around the world. In fact, several Marine Current Turbine (MCT) farm projects with multi-megawatt capacity are planned to be installed in the coming years. In this paper, an MCT farm is supposed to be associated to the energy supply of a stand-alone island. In order to compensate the MCT farm power variation due to tidal phenomenon, an Ocean Compressed Air Energy Storage (OCAES) system is considered to achieve the island power management. In this work, conventional Diesel Generators (DGs) would only serve as a backup supply while the main island power supply will be fulfilled by the proposed hybrid MCT/OCAES system. Simulations under different working conditions are carried out to validate the feasibility of the hybrid power system. Thu, 01 Jan 2015 00:00:00 GMT http://hdl.handle.net/10985/10013 2015-01-01T00:00:00Z SHENG, Lei ZHOU, Zhibin CHARPENTIER, Jean-Frederic BENBOUZID, Mohamed Due to the high predictability and the high energy density, marine tidal resource has become an area of increasing interest with various academic and industrial projects around the world. In fact, several Marine Current Turbine (MCT) farm projects with multi-megawatt capacity are planned to be installed in the coming years. In this paper, an MCT farm is supposed to be associated to the energy supply of a stand-alone island. In order to compensate the MCT farm power variation due to tidal phenomenon, an Ocean Compressed Air Energy Storage (OCAES) system is considered to achieve the island power management. In this work, conventional Diesel Generators (DGs) would only serve as a backup supply while the main island power supply will be fulfilled by the proposed hybrid MCT/OCAES system. Simulations under different working conditions are carried out to validate the feasibility of the hybrid power system.