A novel nonlinear state space model for the hydraulic power take-off of a wave energy converter

Yue, Xuhui; Chen, Qijuan; Wang, Zenghui; Geng, Dazhou; Yan, Donglin; Wen, Jinyu; Wang, Weiyu

doi:10.1016/j.energy.2019.05.095

Cited by 22 publications

(3 citation statements)

References 39 publications

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“…Since many control methods of the WEC are based on statespace models (e.g. [30,31]), it may be convenient if the proposed method is also represented by the state-space model. In addition, the computational speed of the state-space model is faster than that of the convolution integral [32,33].…”

Section: State-space Representationmentioning

confidence: 99%

Decomposition and Prediction of Initial Uniform Bi-Directional Water Waves Using an Array of Wave-Rider Buoys

Iida¹

2022

SSRN Journal

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Section: State-space Representationmentioning

confidence: 99%

Decomposition and Prediction of Initial Uniform Bi-Directional Water Waves Using an Array of Wave-Rider Buoys

Iida¹

2022

SSRN Journal

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“…Recently, several kinds of research into the HPTO in WAB-WECs have been published for various objectives, for example in [15][16][17][18][19][20][21]. From the literature, most of the studies have concentrated on the performance of the HPTO unit without investigating the influence of the important parameters of HPTO.…”

Section: Introductionmentioning

confidence: 99%

Investigations of Hydraulic Power Take-Off Unit Parameters Effects on the Performance of the WAB-WECs in the Different Irregular Sea States

Jusoh

Yusop

Albani

et al. 2021

JMSE

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Hydraulic power take-off (HPTO) is considered to be one of the most effective power take-off schemes for wave energy conversion systems (WECs). The HPTO unit can be constructed using standard hydraulic components that are readily available from the hydraulic industry market. However, the construction and operation of the HPTO unit are more complex rather than other types of power take-off, as many components parameters need to be considered during the optimization. Generator damping, hydraulic motor displacement, hydraulic cylinder and accumulator size are among the important parameters that influence the HPTO performance in generating usable electricity. Therefore, the influence of these parameters on the amount of generated electrical power from the HPTO unit was investigated in the present study. A simulation study was conducted using MATLAB/Simulink software, in which a complete model of WECs was developed using the Simscape fluids toolbox. During the simulation, each parameters study of the HPTO unit were separately manipulated to investigate its effects on the WECs performance in five different sea states. Finally, the simulated result of the effect of HPTO parameters on the amount of generated electrical power from the HPTO unit in different sea states is given and discussed.

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“…Wave energy is a major type of marine energy, with total reserves theoretically totaling approximately 3 billion kW. A third of this amount can be developed by technology, and the theoretical electric production is approximately 8000 TWh/y 5 . Different types of wave energy converters have been given considerable practical use to develop and utilize wave energy.…”

Section: Introductionmentioning

confidence: 99%

Research on design and optimization of the pitching float wave energy converter

Yang

et al. 2020

Energy Science & Engineering

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Energy consumption has increased dramatically with the growth of the global economy, 1 resulting in increasing social concern over environmental matters. 2 The emergence and utilization of low-carbon and renewable energy is becoming the focus of energy development. In response to this situation, attention has been directed toward the oceans. 3,4 Wave energy is a major type of marine energy, with total reserves theoretically totaling approximately 3 billion kW. A third of this amount can be developed by technology, and the theoretical electric production is approximately 8000 TWh/y. 5 Different types of wave energy converters have been given considerable practical use to develop and utilize wave energy. The converters can be classified according to their structure, as oscillating-water column, pendulum, contraction wave channel, and raft types. 6

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A novel nonlinear state space model for the hydraulic power take-off of a wave energy converter

Cited by 22 publications

References 39 publications

Decomposition and Prediction of Initial Uniform Bi-Directional Water Waves Using an Array of Wave-Rider Buoys

Decomposition and Prediction of Initial Uniform Bi-Directional Water Waves Using an Array of Wave-Rider Buoys

Investigations of Hydraulic Power Take-Off Unit Parameters Effects on the Performance of the WAB-WECs in the Different Irregular Sea States

Research on design and optimization of the pitching float wave energy converter

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