Hardware-In-the-Loop test for the optimal damping identification of oscillating buoy wave energy converters

Wang, Xianzhi; Liang, Haizhi; Qiao, Dongsheng; Yan, Jun; Ning, Dezhi; Ou, Jinping

doi:10.1016/j.oceaneng.2023.115730

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…Various types of power generation devices have been developed in this process. Due to its adaptable placement in the marine environment, oscillating float-type wave power generators [4] are one of the hotspots in the field of wave energy utilization and have high power generation efficiency.…”

Section: Introductionmentioning

confidence: 99%

Parametric Design of a New Float-Type Wave Energy Generator and Numerical Simulation of Its Hydrodynamic Performance

Zhang,

2023

JMSE

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A novel float-type device for wave energy power generation, designed specifically for offshore wave environments, is introduced as an innovative technology in wave energy utilization. Herein, we present the design concept, structural composition, and energy conversion process of the device, and conduct mathematical modeling and theoretical research on its kinematic and dynamic characteristics. At the same time, we use a numerical wave pool based on the STAR-CCM+ boundary wave making method and damping dissipation method to analyze the motion response and output power of the wave energy generator in a five-order Stokes wave environment within one wave cycle and the entire operating cycle. Finally, in order to develop the best design strategy, we study the effect of changing the structural parameters of the power generation device on the hydrodynamic performance of the device.

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Section: Introductionmentioning

confidence: 99%

Parametric Design of a New Float-Type Wave Energy Generator and Numerical Simulation of Its Hydrodynamic Performance

Zhang,

2023

JMSE

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Parametric Design of a New Float-Type Wave Energy Generator and Numerical Simulation of its Hydrodynamic Performance

Zhang,

Li,

et al. 2023

Preprint

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Constrained MPPT Strategy for Sustainable Wave Energy Converters with Magnetic Lead Screw

Zhong,

Zhang,

Zhang

et al. 2024

Sustainability

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Emerging magnetic lead screws (MLSs) have been proven to be promising in sustainable wave energy conversion areas due to their high efficiency and power density. This study is aimed at developing a constrained maximum power point tracking (MPPT) strategy for MLS-based wave energy converters (WECs). In this paper, the mechanism of the MLS is analyzed and the dynamic model of the MLS-based WEC is established. The variations in hydrodynamic coefficients were analyzed using ANSYS AQWA, based on which the theoretical MPPT requirements were explored. Afterward, two constraints (stroke and translator force constraint) were introduced to ensure the safe operation of the converter. An adaptive constrained genetic algorithm (ACGA) was applied to realize MPPT under constraints. For irregular wave situations, an extended Kalman filter (EKF) was applied to estimate the frequency and amplitude of the wave excitation force with which the constrained GA can be realized. Simulations and experiments were carried out to verify the constrained MPPT. In the two cases (wind speed u = 7 m/s and u = 10 m/s) of the simulation, the proposed ACGA can improve the energy harvest rate by 3.95% and 3.57% compared to the standard constrained genetic algorithm (SCGA), while this rate was improved by 6% in the experimental case.

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Hardware-In-the-Loop test for the optimal damping identification of oscillating buoy wave energy converters

Cited by 3 publications

References 27 publications

Parametric Design of a New Float-Type Wave Energy Generator and Numerical Simulation of Its Hydrodynamic Performance

Parametric Design of a New Float-Type Wave Energy Generator and Numerical Simulation of Its Hydrodynamic Performance

Parametric Design of a New Float-Type Wave Energy Generator and Numerical Simulation of its Hydrodynamic Performance

Constrained MPPT Strategy for Sustainable Wave Energy Converters with Magnetic Lead Screw

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