Modeling and SIL simulation of a Tidal Stream device for marine energy conversion

Ghefiri, Khaoula; Haggège, Joseph

doi:10.1109/irec.2015.7110882

Cited by 12 publications

(11 citation statements)

References 18 publications

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“…For a three-bladed turbine rotor, when the tidal speed is below the rated value, the efficiency coefficient p C in (1) is a monotonic function of the tip speed ratio [23]. Therefore,…”

Section: A Hydrodynamics Of the Turbine Rotormentioning

confidence: 99%

ADV Preview Based Nonlinear Predictive Control for Maximizing Power Generation of a Tidal Turbine With Hydrostatic Transmission

Yin

Zhao

2019

IEEE Trans. Energy Convers.

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He obtained his PhD degree in Control Theory from Imperial College London. After that he worked as a postdoctoral researcher at the University of Oxford for three years before joining Warwick in 2013. His research interests include (1) control of wind/tidal turbines/farms; (2) grid integration of renewable energy; (3) microgrid; (4) control of fluid-structure interaction with applications to large and flexible wind turbines, highly flexible aircraft, and long-span suspension bridges; (5) control of coupled infinite-dimensional systems.

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“…For a three-bladed turbine rotor, when the tidal speed is below the rated value, the efficiency coefficient p C in (1) is a monotonic function of the tip speed ratio [23]. Therefore,…”

Section: A Hydrodynamics Of the Turbine Rotormentioning

confidence: 99%

ADV Preview Based Nonlinear Predictive Control for Maximizing Power Generation of a Tidal Turbine With Hydrostatic Transmission

Yin

Zhao

2019

IEEE Trans. Energy Convers.

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“…When β is constant, there is an optimal tip speed ratio which maximizes the C P value. The tip speed ratio λ is defined as the ratio of the tip circumferential velocity of the WT blade to the wind speed, which is given by [27]:…”

Section: Mathematical Model Of Dfigmentioning

confidence: 99%

Analysis of Doubly Fed Induction Generators Participating in Continuous Frequency Regulation with Different Wind Speeds Considering Regulation Power Constraints

et al. 2019

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Wind turbines (WTs) participate in frequency regulation, which is one of the means to solve the problem of inadequate regulation capacity in power systems with a high proportion of renewable energy. The doubly fed induction generator (DFIG) can reserve part of power to achieve bidirectional regulation capability through rotor over-speed and increasing pitch angle. In this paper, it is pointed out that the available bidirectional regulation power of the WT is constrained by the maximum regulation power under the rotor speed regulation. The regulation power constraints under the pitch regulation considering the time scale are calculated. The adjustment coefficient of WT participating in frequency regulation is designed. Considering the regulation power constraints, the frequency difference interval in which the WT can provide the regulation power according to the adjustment coefficient is analyzed. The rotor speed and pitch coordinated control strategy of DFIG with different wind speeds is designed. Based on 24-hour measured data from a wind farm, the power constraints and their effects of WTs in the wind farm participating in frequency regulation are verified by simulation. The regulation power of the wind farm, frequency quality, and wind power utilization under the different control strategies are analyzed. The results show that the effects of bidirectional power constraints must be taken into account when evaluating the effectiveness of WTs in continuous frequency regulation.

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“…V A Bearing in mind that the TSG system can only extract a fraction of this available energy, so the power coefficient C p characterizes the level of performance of the tidal stream turbine. Such a coefficient is defined as function of the pitch angle β in (deg) and the tip-speed ratio λ, given as [32,33]:…”

Section: Tidal Turbine Modelmentioning

confidence: 99%

Fuzzy Supervision Based-Pitch Angle Control of a Tidal Stream Generator for a Disturbed Tidal Input

et al. 2018

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Energy originating in tidal and ocean currents appears to be more intense and predictable than other renewables. In this area of research, the Tidal Stream Generator (TSG) power plant is one of the most recent forms of renewable energy to be developed. The main feature of this energy converter is related to the input resource which is the tidal current speed. Since its behaviour is variable and with disturbances, these systems must be able to maintain performance despite the input variations. This article deals with the design and control of a tidal stream converter system. The Fuzzy Gain Scheduling (FGS) technique is used to control the blade pitch angle of the turbine, in order to protect the plant in the case of a strong tidal range. Rotational speed control is investigated by means of the back-to-back power converters. The optimal speed is provided using the Maximum Power Point Tracking (MPPT) strategy to harness maximum power from the tidal speed. To verify the robustness of the developed methods, two scenarios of a disturbed tidal resource with regular and irregular conditions are considered. The performed results prove the output power optimization and adaptive change of the pitch angle control to maintain the plant within the tolerable limits.

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Modeling and SIL simulation of a Tidal Stream device for marine energy conversion

Cited by 12 publications

References 18 publications

ADV Preview Based Nonlinear Predictive Control for Maximizing Power Generation of a Tidal Turbine With Hydrostatic Transmission

ADV Preview Based Nonlinear Predictive Control for Maximizing Power Generation of a Tidal Turbine With Hydrostatic Transmission

Analysis of Doubly Fed Induction Generators Participating in Continuous Frequency Regulation with Different Wind Speeds Considering Regulation Power Constraints

Fuzzy Supervision Based-Pitch Angle Control of a Tidal Stream Generator for a Disturbed Tidal Input

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