Offshore wave energy resource assessment in the East China Sea

Wu, Shuping; Liu, Chuanyu; Chen, Xinping

doi:10.1016/j.renene.2014.11.054

Cited by 80 publications

(30 citation statements)

References 18 publications

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“…Based on the analysis mentioned above, the dynamic characteristics of the magnetic coupling are impacted by the torsional rigidity k , the damping coefficient s C and the rotational inertia 2 J of the driven rotor. Once the magnetic coupling has been installed, the rotational inertia 2 J and the damping coefficient s C are fixed.…”

Section: Discussionmentioning

confidence: 99%

“…Once the magnetic coupling has been installed, the rotational inertia 2 J and the damping coefficient s C are fixed. However, the torsional rigidity k and the dynamic characteristics varies with the changes of angle difference .…”

Section: Discussionmentioning

confidence: 99%

“…According to Newton's Second Law, the following mathematical model is proposed. When the magnetic coupling is working, the relationship between the load 2 T and the angular velocity is linear, which can be treated as a damping effect. The damping coefficient is assumed as d C , then the following formula is obtained.…”

Section: Fig 1 Magnetic Coupling Modelmentioning

confidence: 99%

“…The smaller the , the better the following performance is. Based on Equations (1)- (4), the error transfer function can be expressed as (6) According to Equation (6), is influenced by the rotational inertia 2 J , the damping coefficient s C of the driven rotor and the torsional rigidity . Assuming that the magnetic coupling rotates with a constant speed a, then is given by :…”

Section: (4)mentioning

confidence: 99%

“…Wave energy is an important renewable energy and it shows great development values because it is clean, pollution-free, abundant and widespread [1][2][3][4][5][6]. The wave energy utilization methods include mechanical, pneumatic and hydraulic forms, which are used in different situations accordingly [7][8][9], and whose service life, working performance and conversion efficiency are affected by various factors [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Characteristics of Magnetic Coupling in Horizontal Axis Wave Energy Device

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et al. 2017

Polish Maritime Research

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Fig 1 Magnetic Coupling Modelmentioning

confidence: 99%

Section: (4)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dynamic Characteristics of Magnetic Coupling in Horizontal Axis Wave Energy Device

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Liu

et al. 2017

Polish Maritime Research

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GIS‐based multiregional potential evaluation and strategies selection framework for various renewable energy sources: a case study of eastern coastal regions of China

Sun

Wang

et al. 2017

Energy Science & Engineering

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Evaluation of available potential and suitable alternative options for various renewable energy sources (RES) requires the explicit consideration of interregional disparities and site-specific conditions (e.g., environmental, socioeconomic, and resources features) for a larger scale region or country. This paper presents a novel multiregional analytical framework considering interregional suitability difference and inter-RES competitiveness at a given location in order to support efficient and sustainable RES spatial planning strategies. A GIS-based multicriteria evaluation technique was used to identify the geospatial potential/appropriate sites for various RES through combination of satellitederived information, reanalysis data, ground measurements, and statistical data. The composite index (CI) considering location suitability and sustainability of renewable energy technology was then used to compare different RES options, and as a selection criteria to define suitable strategies for each specific region. A real case study concerning the China's eastern coastal 10 provinces of RES planning issue demonstrates the applicability of the proposed approach. The present results illustrate how to coordinate the competing relationships between inter-regions and inter-RES for a given location in the eastern coastal regions of China. This could provide useful insight into plan the long-term RES developing paths and facilitate the determination of optimal energy mix for the other same type area. 124

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A study on a near‐shore cantilevered sea wave energy harvester with a variable cross section

Zhang

Xie

Song

et al. 2019

Energy Science & Engineering

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A cantilevered piezoelectric coupled energy harvester with variable cross section is proposed to obtain the electric power from the longitudinal motion of the near‐shore sea wave. In order to describe the practical process of the sea wave energy harvesting, a mathematical model of the harvester is established based on Airy linear wave theory and Bessel equations to calculate the output charge, voltage, current, and power. Compared to traditional cantilever harvesters with uniform cross section, this harvesting device has a larger energy harvesting efficiency for its more uniform and bigger surface strain in the action of the sea wave. The computation results show a root mean square (RMS) of electric power of 132.6 W can be reached up with the cantilever height, the wave height, and the wavelength of 2.5, 2, and 12.5 m, respectively, which is 2.41 times of those of the traditional cantilever harvester with uniform cross section. In addition, the output powers of the harvester in tiding and in array are also discussed. This research provided a new practical and efficient method of harvesting near‐shore sea wave energy to supply the electric power demand of the households near seaside.

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Offshore wave energy resource assessment in the East China Sea

Cited by 80 publications

References 18 publications

Dynamic Characteristics of Magnetic Coupling in Horizontal Axis Wave Energy Device

Dynamic Characteristics of Magnetic Coupling in Horizontal Axis Wave Energy Device

GIS‐based multiregional potential evaluation and strategies selection framework for various renewable energy sources: a case study of eastern coastal regions of China

A study on a near‐shore cantilevered sea wave energy harvester with a variable cross section

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