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Dr. Youcef Belkhier
Laboratoire de Technologie Industrielle et de l’Information (LTII), Faculté de Technologie, Université de Bejaia, Bejaia 06000, Algeria

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Research Keywords & Expertise

0 Tidal Energy
0 electical engineering
0 Wind and PV power
0 Renewable & Clean Energy Resources
0 Nonlinear adaptive robust control

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Tidal Energy

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Short Biography

Youcef Belkhier is with the Laboratoire de Technologie Industrielle et de l’Information (LTII), Faculté de Technologie, Université de Bejaia, Algeria. He received a Master's degree and the PhD in Automation and Electronics from the University of Bejaia, Algeria, in 2017 and 2021. His research interests include electrical machines design and control, renewable energy systems, fuzzy systems and power electronics.

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Journal article
Published: 27 April 2021 in Actuators
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Higher efficiency, predictability, and high-power density are the main advantages of a permanent magnet synchronous generator (PMSG)-based hydro turbine. However, the control of a PMSG is a nontrivial issue, because of its time-varying parameters and nonlinear dynamics. This paper suggests a novel optimal fuzzy supervisor passivity-based high order sliding-mode controller to address problems faced by conventional techniques such as PI controls in the machine side. An inherent advantage of the proposed method is that the nonlinear terms are not canceled but compensated in a damped way. The proposed controller consists of two main parts: the fuzzy gain supervisor-PI controller to design the desired dynamic of the system by controlling the rotor speed, and the fuzzy gain-high order sliding-mode control to compute the controller law. The main objectives are feeding the electrical grid with active power, extracting the maximum tidal power, and regulating the reactive power and DC voltage toward their references, whatever the disturbances caused by the PMSG. The main contribution and novelty of the present work consists in the new robust fuzzy supervisory passivity-based high order sliding-mode controller, which treats the mechanical characteristics of the PMSG as a passive disturbance when designing the controller and compensates it. By doing so, the PMSG tracks the optimal speed, contrary to other controls which only take into account the electrical part. The combined high order sliding-mode controller (HSMC) and passivity-based control (PBC) resulted in a hybrid controller law which attempts to greatly enhance the robustness of the proposed approach regardless of various uncertainties. Moreover, the proposed controller was also validated using a processor in the loop (PIL) experiment using Texas Instruments (TI) Launchpad. The control strategy was tested under parameter variations and its performances were compared to the nonlinear control methods. High robustness and high efficiency were clearly illustrated by the proposed new strategy over compared methods under parameter uncertainties using MATLAB/Simulink and a PIL testing platform.

ACS Style

Youcef Belkhier; Abdelyazid Achour; Rabindra Shaw; Nasim Ullah; Shahariar Chowdhury; Kuaanan Techato. Fuzzy Supervisory Passivity-Based High Order-Sliding Mode Control Approach for Tidal Turbine-Based Permanent Magnet Synchronous Generator Conversion System. Actuators 2021, 10, 92 .

AMA Style

Youcef Belkhier, Abdelyazid Achour, Rabindra Shaw, Nasim Ullah, Shahariar Chowdhury, Kuaanan Techato. Fuzzy Supervisory Passivity-Based High Order-Sliding Mode Control Approach for Tidal Turbine-Based Permanent Magnet Synchronous Generator Conversion System. Actuators. 2021; 10 (5):92.

Chicago/Turabian Style

Youcef Belkhier; Abdelyazid Achour; Rabindra Shaw; Nasim Ullah; Shahariar Chowdhury; Kuaanan Techato. 2021. "Fuzzy Supervisory Passivity-Based High Order-Sliding Mode Control Approach for Tidal Turbine-Based Permanent Magnet Synchronous Generator Conversion System." Actuators 10, no. 5: 92.

Journal article
Published: 27 March 2021 in Sustainability
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A permanent magnet synchronous generator (PMSG) in s grid-connected tidal energy conversion system presents numerous advantages such as high-power density and ease of maintenance. However, the nonlinear properties of the generator and parametric uncertainties make the controller design more than a simple challenge. Within this paper we present a new combined passivity-based voltage control (PBVC) with a nonlinear observer. The PBVC is used to design the desired dynamics of the system, while the nonlinear observer serves to reconstruct the measured signals. A high order sliding-mode based fuzzy supervisory approach is selected to design the desired dynamics. This paper addresses the following two main parts: controlling the PMSG to guarantee the maximum tidal power extraction and integrate into to the grid-side converter (GSC), for this the new controller is proposed. The second task is to regulate the generated reactive power and the DC-link voltage to their references under any disturbances related to the machine-side converter (MSC). Furthermore, the robustness of the controller against parameter changes was taken into consideration. The developed controller is tested under parameter variations and compared to benchmark nonlinear control methods. Numerical simulations are performed in MATLAB/Simulink which clearly demonstrates the robustness of the proposed technique over the compared control methods. Moreover, the proposed controller is also validated using a processor in the loop (PIL) experiment using Texas Instruments (TI) Launchpad.

ACS Style

Youcef Belkhier; Abdelyazid Achour; Rabindra Shaw; Nasim Ullah; Shahariar Chowdhury; Kuaanan Techato. Energy-Based Combined Nonlinear Observer and Voltage Controller for a PMSG Using Fuzzy Supervisor High Order Sliding Mode in a Marine Current Power System. Sustainability 2021, 13, 3737 .

AMA Style

Youcef Belkhier, Abdelyazid Achour, Rabindra Shaw, Nasim Ullah, Shahariar Chowdhury, Kuaanan Techato. Energy-Based Combined Nonlinear Observer and Voltage Controller for a PMSG Using Fuzzy Supervisor High Order Sliding Mode in a Marine Current Power System. Sustainability. 2021; 13 (7):3737.

Chicago/Turabian Style

Youcef Belkhier; Abdelyazid Achour; Rabindra Shaw; Nasim Ullah; Shahariar Chowdhury; Kuaanan Techato. 2021. "Energy-Based Combined Nonlinear Observer and Voltage Controller for a PMSG Using Fuzzy Supervisor High Order Sliding Mode in a Marine Current Power System." Sustainability 13, no. 7: 3737.

Research article
Published: 18 March 2021 in International Journal of Energy Research
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The conversion of the tidal power captured by the marine current turbine to electrical power depends highly on the applied control strategy. However, in the presence of nonlinearities, parametric uncertainties, and external disturbance, the controller design process is challenging task. This paper proposes an energy‐based control approach for a grid‐connected permanent magnet synchronous generator (PMSG)‐based marine current energy conversion system. This method combines a new passivity‐based voltage control (PBVC) with a nonlinear observer. The PBVC designs the desired dynamic of the system, while the nonlinear observer is used to reconstruct the measured signals. The main contributions and motivation of this work include the extraction of maximum power from the tidal current, integrating it to the grid, and forcing the closed‐loop system's energy to passive state. The mentioned objectives are achieved by reshaping system's energy and introducing a damping control term that compensates the nonlinear phenomena in a damped way rather by the cancellation and it also establishes a duality concept between the observer and the PBVC. Two steps are required to design the proposed controller: In the first step, the reference current is formulated based on the reference torque using a proportional‐integral‐derivative controller. As a second step, the overall control law is computed by the passivity‐based combined nonlinear observer and voltage controllers. To validate the performance of the system under the proposed control, a comparison with the second‐order sliding mode control and the conventional proportional‐integral control methods is presented. The proposed method is tested in MATLAB/Simulink environment under different operating conditions and from the presented results it is evident that the proposed controller showed robustness against parameter changes and ensured fast convergence of the states.

ACS Style

Youcef Belkhier; Abdelyazid Achour; Farid Hamoudi; Nasim Ullah; Boubekeur Mendil. Robust energy‐based nonlinear observer and voltage control for grid‐connected permanent magnet synchronous generator in the tidal energy conversion system. International Journal of Energy Research 2021, 45, 13250 -13268.

AMA Style

Youcef Belkhier, Abdelyazid Achour, Farid Hamoudi, Nasim Ullah, Boubekeur Mendil. Robust energy‐based nonlinear observer and voltage control for grid‐connected permanent magnet synchronous generator in the tidal energy conversion system. International Journal of Energy Research. 2021; 45 (9):13250-13268.

Chicago/Turabian Style

Youcef Belkhier; Abdelyazid Achour; Farid Hamoudi; Nasim Ullah; Boubekeur Mendil. 2021. "Robust energy‐based nonlinear observer and voltage control for grid‐connected permanent magnet synchronous generator in the tidal energy conversion system." International Journal of Energy Research 45, no. 9: 13250-13268.

Article
Published: 15 December 2020 in International Journal of Modelling and Simulation
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Permanent-magnet synchronous generator (PMSG) associated with power electronics is a complex object to control due to the existence of nonlinearly coupled variables, and time-varying parameters. This paper presents a new passivity-based current controller (PBCC) design with flux orientation of a conversion system-based variable speed wind with PMSG connected to the grid through PWM converter with DC-Link. This technique is energy based and injects a damping term which ensures the stability and the convergence of the measured signals towards their references which forces the conversion system to operate at an optimal power point, to extract the maximum power produced. The main objectives of this study consist of two main parts: extract the maximum wind power through controlling the rotational of the PMSG and transfer this power to the grid-side converter, for this, a new controller is proposed. The second one is to maintain the DC-link voltage and the generated reactive power at their reference values, despite any possible constraints related to the machine-side converter (MSC), for this, a classical PI controller is investigated, that is to improve performances of the wind system. The obtained simulation results under MATLAB/Simulink address the high-performance and fast response of the proposed strategy.

ACS Style

Youcef Belkhier; Abdelyazid Achour; Nasim Ullah; Rabindra Nath Shaw. Modified passivity-based current controller design of permanent magnet synchronous generator for wind conversion system. International Journal of Modelling and Simulation 2020, 1 -11.

AMA Style

Youcef Belkhier, Abdelyazid Achour, Nasim Ullah, Rabindra Nath Shaw. Modified passivity-based current controller design of permanent magnet synchronous generator for wind conversion system. International Journal of Modelling and Simulation. 2020; ():1-11.

Chicago/Turabian Style

Youcef Belkhier; Abdelyazid Achour; Nasim Ullah; Rabindra Nath Shaw. 2020. "Modified passivity-based current controller design of permanent magnet synchronous generator for wind conversion system." International Journal of Modelling and Simulation , no. : 1-11.

Research article
Published: 10 November 2020 in International Journal of Energy Research
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Tidal turbine systems‐based permanent magnet synchronous generator (PMSG) has been largely investigated due to their higher efficiency, predictability, and high‐power density. However, parameter uncertainties and external disturbances make the controller design a challenging work. This study suggests a new adaptive fuzzy linear feedback passivity‐based backstepping control to solve the robustness problems faced by the conventional proportional‐integral (PI) controls in the machine‐side converter (MSC). The proposed controller design uses an energy‐based approach; therefore, its dependence on the system parameters is extremely reduced and avoids the cancellation of nonlinearities of the system. Then, the dynamic response is fast and efficient, and the asymptotic stability and the robustness of the conversion system are improved. The main objectives are the extraction of the maximum tidal power, feeding the electrical grid with only the active power, and regulating the DC voltage and the reactive power toward their references, whatever the disturbances caused by the PMSG behavior. The control strategy is tested under parameter variations, and the performances are compared to the conventional PI strategy. Numerical investigation under MATLAB/Simulink environment demonstrates that the proposed control solution provides a higher efficiency and robustness under parameter variations over conventional PI approach.

ACS Style

Youcef Belkhier; Abdelyazid Achour. An intelligent passivity‐based backstepping approach for optimal control for grid‐connecting permanent magnet synchronous generator‐based tidal conversion system. International Journal of Energy Research 2020, 45, 5433 -5448.

AMA Style

Youcef Belkhier, Abdelyazid Achour. An intelligent passivity‐based backstepping approach for optimal control for grid‐connecting permanent magnet synchronous generator‐based tidal conversion system. International Journal of Energy Research. 2020; 45 (4):5433-5448.

Chicago/Turabian Style

Youcef Belkhier; Abdelyazid Achour. 2020. "An intelligent passivity‐based backstepping approach for optimal control for grid‐connecting permanent magnet synchronous generator‐based tidal conversion system." International Journal of Energy Research 45, no. 4: 5433-5448.

Conference paper
Published: 30 October 2020 in 2020 IEEE 5th International Conference on Computing Communication and Automation (ICCCA)
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Concerning the external disturbance, nonlinear operation conditions and parametric uncertainties of wind conversion system based permanent magnet synchronous generator (PMSG), in this paper we propose a passivity-based control (PBC) combined with fuzzy logic controller for dynamic performance improvement. The studied renewable system is constituted by a wind turbine based PMSG connected to the electrical grid through PWM converter. The PBC is applied to the generator-side when a conventional PI control is applied to the grid-side. Numerical investigation under MATLAB/Simulink environment, demonstrate that the proposed control solution provides efficiency, effectiveness of the developed strategy.

ACS Style

Youcef Belkhier; Abdelyazid Achour; Rabindra Nath Shaw. Fuzzy Passivity-Based Voltage Controller Strategy of Grid-Connected PMSG-Based Wind Renewable Energy System. 2020 IEEE 5th International Conference on Computing Communication and Automation (ICCCA) 2020, 210 -214.

AMA Style

Youcef Belkhier, Abdelyazid Achour, Rabindra Nath Shaw. Fuzzy Passivity-Based Voltage Controller Strategy of Grid-Connected PMSG-Based Wind Renewable Energy System. 2020 IEEE 5th International Conference on Computing Communication and Automation (ICCCA). 2020; ():210-214.

Chicago/Turabian Style

Youcef Belkhier; Abdelyazid Achour; Rabindra Nath Shaw. 2020. "Fuzzy Passivity-Based Voltage Controller Strategy of Grid-Connected PMSG-Based Wind Renewable Energy System." 2020 IEEE 5th International Conference on Computing Communication and Automation (ICCCA) , no. : 210-214.

Conference paper
Published: 13 October 2020 in 2020 IEEE ANDESCON
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Nonlinear operation conditions, parameter uncertainties and external disturbances makes the controller design of a wind conversion system based permanent magnet synchronous generator (PMSG) a challenging work. This study proposes new passivity-based control combined with PID controller to replace the conventional proportional-integral (PI) controls in the machine-side converter (MSC) for a PMSG-based wind conversion system with grid connection. The characteristic of this strategy is that the nonlinear terms are not cancelled but compensated in a damped way, in that way the PMSG is forced to operate at an optimal torque. In this work the controller aims are the maintaining of the DC-link voltage and the reactive power to their reference values. Effectiveness, stability, and fast convergence of the proposed controller are performed by the obtained simulation results under MATLAB/Simulink.

ACS Style

Youcef Belkhier; Abdelyazid Achour. Passivity-Based Voltage Control Design of Grid Connected Wind Turbine With PMSG. 2020 IEEE ANDESCON 2020, 1 -5.

AMA Style

Youcef Belkhier, Abdelyazid Achour. Passivity-Based Voltage Control Design of Grid Connected Wind Turbine With PMSG. 2020 IEEE ANDESCON. 2020; ():1-5.

Chicago/Turabian Style

Youcef Belkhier; Abdelyazid Achour. 2020. "Passivity-Based Voltage Control Design of Grid Connected Wind Turbine With PMSG." 2020 IEEE ANDESCON , no. : 1-5.

Journal article
Published: 01 October 2020 in Ocean Engineering
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ACS Style

Youcef Belkhier; Abdelyazid Achour. Fuzzy passivity-based linear feedback current controller approach for PMSG-based tidal turbine. Ocean Engineering 2020, 218, 1 .

AMA Style

Youcef Belkhier, Abdelyazid Achour. Fuzzy passivity-based linear feedback current controller approach for PMSG-based tidal turbine. Ocean Engineering. 2020; 218 ():1.

Chicago/Turabian Style

Youcef Belkhier; Abdelyazid Achour. 2020. "Fuzzy passivity-based linear feedback current controller approach for PMSG-based tidal turbine." Ocean Engineering 218, no. : 1.

Article
Published: 15 September 2020 in International Journal of Control, Automation and Systems
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Nonlinear dynamical and time varying parameters of the permanent magnet synchronous generator (PMSG), make it difficult to control. This paper presents a new passivity-based control (PBC) of tidal turbine based PMSG, connected to the grid through a back-to-back converter. The control problem is challenging for at least two reasons. First, the dynamics of the conversion system are described by a highly coupled set of nonlinear differential equations and various uncertainties of the PMSG model. Second, it is preferable to operate this kind of systems at the point of maximum power, which is a nonlinear function. To this end, two kinds of control strategies have been used. A new passivity-based voltage controller (PBVC) design applied to the machine-side, that ensures asymptotic convergence to the MPPT is presented. A proportional integral derivative (PID) is added to design a desired torque dynamic in order to guarantee a fast convergence and stability of the closed loop system, which allows to the PMSG to operate at an optimal speed. Secondly, a classical proportional integral (PI) controllers is applied to the grid-side in order to regulate the DC-Link voltage and to deliver only the active power into distribution network. Finally, the obtained simulation results under MATLAB/Simulink, show that the proposed control strategy ensures stability and fast response of the DC-link voltage and the reactive power generated is extremely minimized.

ACS Style

Youcef Belkhier; Abdelyazid Achour. Passivity-based Voltage Controller for Tidal Energy Conversion System with Permanent Magnet Synchronous Generator. International Journal of Control, Automation and Systems 2020, 19, 988 -998.

AMA Style

Youcef Belkhier, Abdelyazid Achour. Passivity-based Voltage Controller for Tidal Energy Conversion System with Permanent Magnet Synchronous Generator. International Journal of Control, Automation and Systems. 2020; 19 (2):988-998.

Chicago/Turabian Style

Youcef Belkhier; Abdelyazid Achour. 2020. "Passivity-based Voltage Controller for Tidal Energy Conversion System with Permanent Magnet Synchronous Generator." International Journal of Control, Automation and Systems 19, no. 2: 988-998.

Conference paper
Published: 01 December 2019 in 2019 1st International Conference on Sustainable Renewable Energy Systems and Applications (ICSRESA)
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Permanent-magnet synchronous generator (PMSG) associated to power electronic is a complex object to control due to the existence of a nonlinearly coupled variables, and time-varying parameters. In This paper a new passivity-based control (PBC) is applied to a conversion system with variable speed wind based PMSG connected to the grid via a pulse width modulation (PWM) buck-to-buck converter and DC-Link is presented. This technique is based on the energy of the system and injects a damping term which ensures the fast convergence and the stability of the measured signals towards their references which forces the PMSG to operate at an optimal torque and track time-varying speed of the wind turbine to extract the maximum power produced. A classical proportional integral (PI) controllers is used in the grid-side, where the DC-Link voltage is regulated and only the active power is transferred to the distribution network. The obtained simulation results under MATLAB/Simulink, addresses the high-performance regulation, fast response of the control strategy.

ACS Style

Y. Belkhier; A. Y. Achour. Passivity-Based Current Control Strategy for PMSG Wind Turbine. 2019 1st International Conference on Sustainable Renewable Energy Systems and Applications (ICSRESA) 2019, 1 -4.

AMA Style

Y. Belkhier, A. Y. Achour. Passivity-Based Current Control Strategy for PMSG Wind Turbine. 2019 1st International Conference on Sustainable Renewable Energy Systems and Applications (ICSRESA). 2019; ():1-4.

Chicago/Turabian Style

Y. Belkhier; A. Y. Achour. 2019. "Passivity-Based Current Control Strategy for PMSG Wind Turbine." 2019 1st International Conference on Sustainable Renewable Energy Systems and Applications (ICSRESA) , no. : 1-4.