Experimental Study on Hydrodynamic Aspects of Turbine which Convert Hydrokinetic and Potential Coastal Wave Energy

Rahuna, Daif; Erwandi,; Kasharjanto, Afian; Suyanto, Eko; Mintarso, Cahyadi Sugeng Jati

doi:10.1088/1755-1315/1166/1/012021

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…Figure 1 shows the WECS based DFIG configuration. We note that there are many ways to get electricity from: marine current (TOLA et al, 2022), ocean wave energy (Rahuna et al, 2023), ocean current energy (Silva et al, 2023).…”

Section: Wind Energy Conversion Systemsmentioning

confidence: 99%

Generalized Predictive Control of the Active and Reactive Stator Powers of the DFIG for Wind Energy Generation

MELLAH,

MAAFA,

SAHRAOUI

et al. 2023

EPSTEM

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This paper proposes a Generalized Predictive Control (GPC) strategy for Wind Power Generation (WPG) based on a doubly fed induction generator (DFIG). The objective is to study and apply a robust active and reactive power control strategy based on GPC of the DFIG, this is likely to optimize the energy production and improve the quality of the energy produced. In order to maximize the amount of WPG taken even when the turbine is uncertain or the wind speed varies abruptly, the design is built utilizing the Maximum Power Point Tracking (MPPT) theory. Through numerical modeling with the aid of the Matlab/Simulink software, the predictive control (GPC) of the active and reactive stator powers of the DFIG was validated. A comparison between the GPC of the GADA and the indirect method based on a typical PI controller is developed in order to illustrate the viability of the suggested method. According to the simulation results of this comparison, the suggested method is viable and has promising results.

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Section: Wind Energy Conversion Systemsmentioning

confidence: 99%

Generalized Predictive Control of the Active and Reactive Stator Powers of the DFIG for Wind Energy Generation

MELLAH,

MAAFA,

SAHRAOUI

et al. 2023

EPSTEM

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Noninertial Driven Multifaceted Fluff and Halbach Array Hybrid Nanogenerator: Achieving Shore-Based Water Wave Energy Harvesting

Jing,

Han,

et al. 2024

ACS Appl. Electron. Mater.

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Shore-based water wave energy is a clean and renewable energy source generated by waves crashing against the shoreline. This work presents a multifaceted fluff driven by a noninertial and Halbach array-based triboelectric-electromagnetic hybrid generator (FH-HG) designed to harvest wave energy. Compared to inertial drive systems that excite the entire device, the noninertial drive only needs to excite the driving plate part, directly converting the mechanical energy of the waves into electrical energy, thus reducing intermediate steps and energy losses. The multifaceted fluff integrates eight triboelectric nanogenerators (TENGs), significantly enhancing space utilization. Additionally, the Halbach array-based electromagnetic generator (H-EMG) provides counterweights on both sides of the multifaceted fluff TENG (F-TENG), further converting mechanical energy into electrical energy. Experimental verification identified the parallel connection of TENG and EMG as optimal. Results show maximum volumetric power densities of 1.97 and 2.79 W/m 3 for F-TENG and H-EMG, respectively. The polycarbonate (PC) fluff design and Halbach array structure enhance high-voltage output and abrasion resistance, compensating for EMG's low-voltage drawbacks and making large-scale wave energy capture feasible. The highperformance FH-HG can power electronic devices and wireless systems for real-time marine environment monitoring and coastal city power supply, offering a promising solution for large-scale wave energy harvesting.

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Opportunities for Utilizing Vortex Generators on Vertical Axis Ocean Current Turbines: A Review

Rahuna,

Erwandi,

Satrio

et al. 2024

BIO Web Conf.

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Researchers have studied vertical axis turbines (VATs) for their low power efficiency, focusing on the turbine blades, selecting suitable airfoils, modifying the original airfoil shape, and adding other devices to the blades. The proposed method is to add a passive vortex generator device, which generates vortex flow to delay the separation flow at the surface, thereby increasing efficiency. Initially, VGs were used on aircraft wings to improve stability and performance efficiency; later, they were developed for other transport industries, such as cars, trucks, high-speed trains, and ships. In the renewable energy sector, VGs are used to improve turbine performance and efficiency. The research aims to obtain comprehensive information on the effect of using VG on vertical-axis ocean current turbines. To achieve this goal, we collected articles related to VG, reviewed the published articles on VG research on wind turbines and marine current turbines, then analysed the research results and determined the results based on the research methodology. At present, research has been developed to obtain the shape, dimension, and configuration of VG suitable for a vertical-axis ocean current turbine. The research is carried out in stages, which currently prioritize the shape and VG dimensions used in VAT with NACA 0021 blades, followed by the development of VG configuration research on VAT blades.

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Experimental Study on Hydrodynamic Aspects of Turbine which Convert Hydrokinetic and Potential Coastal Wave Energy

Cited by 3 publications

References 17 publications

Generalized Predictive Control of the Active and Reactive Stator Powers of the DFIG for Wind Energy Generation

Generalized Predictive Control of the Active and Reactive Stator Powers of the DFIG for Wind Energy Generation

Noninertial Driven Multifaceted Fluff and Halbach Array Hybrid Nanogenerator: Achieving Shore-Based Water Wave Energy Harvesting

Opportunities for Utilizing Vortex Generators on Vertical Axis Ocean Current Turbines: A Review

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