A review on technology, configurations, and performance of cross‐flow hydrokinetic turbines

Saini, Gaurav; Saini, R.P.

doi:10.1002/er.4625

Cited by 33 publications

(23 citation statements)

References 96 publications

(183 reference statements)

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“…In recent times, tidal power is considered as the most promising renewable power generation source due to its inherent advantages such as predictability and negligible environmental effects. [1][2][3] The majority of marine current conversion technologies are based on permanent magnet synchronous generators (PMSG) due to its numerous advantages such as high-power density, low cost, and favorable electricity production. However, the maximum power that can be captured by the marine current turbine is nonlinear and it depends on several factors.…”

Section: Introductionmentioning

confidence: 99%

Robust energy‐based nonlinear observer and voltage control for grid‐connected permanent magnet synchronous generator in the tidal energy conversion system

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Robust energy‐based nonlinear observer and voltage control for grid‐connected permanent magnet synchronous generator in the tidal energy conversion system

et al. 2021

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“…At present, offshore tidal turbines are undergoing significant development due to the quality of the resources (depth and speed of the current), availability of abundant power (1.5 MW) and its more predictable behavior compared to wind and solar energies. In this area of research, the grid connected PMSG based tidal energy generation system is one of the most resent forms of renewable energy conservation problem to be investigated [1], [2].…”

Section: Introductionmentioning

confidence: 99%

Intelligent Energy-Based Modified Super Twisting Algorithm and Factional Order PID Control for Performance Improvement of PMSG Dedicated to Tidal Power System

et al. 2021

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The majority of marine current conversion technologies are based on permanent magnet synchronous generators (PMSG) due to its numerous advantages such as high-power density, low cost, and favorable electricity production. However, nonlinear properties of the generator and parameter uncertainties, makes the controller design more than a simple challenge. This paper proposes a new adaptive passivity-based (PB) modified super twisting algorithm (PBSTA) for control performance improvement (low tracing errors, fast convergence response, robustness) of a PMSG based marine current energy conversion system under swell effect and parameter uncertainties. The proposed approach combines a new PB current control (PBCC) with a new adaptive modified super twisting algorithm through a fuzzy logic supervisor. A new adaptive fractional order PID (FO-PID) controller is introduced to design the desired dynamics of the system. The main contributions and motivation of this work include the extraction of maximum power from the tidal current, integrating it to the grid and making the closed loop system passive. This is possible by reshaping system energy and introducing a damping term that compensates the nonlinear terms by a damped way and not by cancellation. Two steps are needed to design the proposed controller: the first step includes the derivation of reference current based on the reference torque using adaptive FO-PID. In the second step, the overall control law is computed by the proposed PBSTA. The exponential stability and error convergence of the proposed controller are analytically proven. The developed controller is tested under parameter variations and it is compared to benchmark nonlinear control methods such as sliding mode. Extensive investigation under MATLAB/Simulink, demonstrates clearly that the proposed technique provides higher efficiency and robustness over the benchmark nonlinear control methods.

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“…It has widespread application in many fields, such as water conservancy, petrochemical, seawater desalination, and mechanical power. It also has a positive effect on reducing energy consumption per unit of output [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Performance Characteristics in Runner of an Impulse Water Turbine with Splitter Blade

et al. 2021

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The impulse water turbine is a promising energy conversion device that can be used as mechanical power or a micro hydro generator, and its application can effectively ease the current energy crisis. This paper aims to clarify the mechanism of liquid acting on runner blades, the hydraulic performance, and energy conversion characteristics in the runner domain of an impulse water turbine with a splitter blade by using experimental tests and numerical simulations. The runner was divided into seven areas along the flow direction, and the power variation in the runner domain was analyzed to reflect its energy conversion characteristics. The obtained results indicate that the critical area of the runner for doing the work is in the front half of the blades, while the rear area of the blades does relatively little work and even consumes the mechanical energy of the runner to produce negative work. The high energy area is concentrated in the flow passage facing the nozzle. The energy is gradually evenly distributed from the runner inlet to the runner outlet, and the negative energy caused by flow separation with high probability is gradually reduced. The clarification of the energy conversion performance is of great significance to improve the design of impulse water turbines.

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A review on technology, configurations, and performance of cross‐flow hydrokinetic turbines

Cited by 33 publications

References 96 publications

Robust energy‐based nonlinear observer and voltage control for grid‐connected permanent magnet synchronous generator in the tidal energy conversion system

Robust energy‐based nonlinear observer and voltage control for grid‐connected permanent magnet synchronous generator in the tidal energy conversion system

Intelligent Energy-Based Modified Super Twisting Algorithm and Factional Order PID Control for Performance Improvement of PMSG Dedicated to Tidal Power System

Performance Characteristics in Runner of an Impulse Water Turbine with Splitter Blade

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