Design and Analysis of a Field-Modulated Tubular Linear Permanent Magnet Generator for Direct-Drive Wave Energy Conversion

Xia, Tao; Yu, Haitao; Chen, Zhongxian; Huang, Lei; Liu, Xiaomei; Hu, Minqiang

doi:10.1109/tmag.2017.2662080

Cited by 29 publications

(9 citation statements)

References 9 publications

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“…Field-modulated tubular linear generators are designed to overcome the disadvantages of the heavy generator and low frequency of ocean waves [86,92,53]. Some new excitation winding configurations were used to improve power density [93] where Du et al proposed a direct-drive mutually coupled linear switched reluctance machine (MCLSRM) which had better utilized the magnetic and electric circuits and generated a higher voltage than the fieldmodulated tubular linear generators.…”

Section: Direct Drive and In-direct Drive Power Take-off Systemsmentioning

confidence: 99%

A Survey of Power Take-off Systems of Ocean Wave Energy Converters

Z¹,

Zhang²,

Xiao³

et al. 2019

Preprint

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Ocean wave energy conversion as one of the renewable clean energy sources is attracting the research interests of many people. This review introduces different types of power take-off technology of wave energy converters. The main focus is the linear direct drive power take-off devices as they have the advantages for ocean wave energy conversion. The designs and optimizations of power take-off systems of ocean wave energy converters have been studied from reviewing the recently published literature. Also, the simple hydrodynamics of wave energy converters have been reviewed for design optimization of the wave energy converters at specific wave sites. The novel mechanical designs of the power take-off systems have been compared and investigated in order to increase the energy harvesting efficiency.

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Section: Direct Drive and In-direct Drive Power Take-off Systemsmentioning

confidence: 99%

A Survey of Power Take-off Systems of Ocean Wave Energy Converters

Z¹,

Zhang²,

Xiao³

et al. 2019

Preprint

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“…In these studies, the finite difference method is preferred for the solution since the structures whose electromagnetic wave propagation behavior is examined are two-dimensional and each point of the structures has different material properties. Moreover, the frequencies of electromagnetic wave propagation in optical structures are examined using the finite difference method by drilling small circular holes or additions to the structures (Alipour-Banaei et al, 2017;Dideban et al, 2017;Xia et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Investigation of Electromagnetic Wave Propagation Frequencies in Two-Dimensional Photonic Crystals with Finite Differences Method

Basmaci¹,

Filiz²

2021

European Journal of Science and Technology

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“…The point absorber devices with direct drive extraction mechanism are the more efficient systems for ocean wave energy conversion at low velocity oscillations [1]. For this type of conversion devices, linear generators with permanent magnets are generally used [2][3][4][5][6]. However, linear electric machines with permanent magnets need a complicated winding system and are characterized by their elevated construction and assembly costs.…”

Section: Introductionmentioning

confidence: 99%

Maximum Power Point Tracking for a Point Absorber Device with a Tubular Linear Switched Reluctance Generator

2018

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This paper addresses the control of a Tubular Linear Switched Reluctance Generator (TLSRG) with application in a point absorber device. A maximum power point tracking (MPPT) strategy is proposed to maximize the power extraction from ocean waves. The generator is characterized by average maximum force of 120 kN and a maximum velocity of 1.3 m/s. The proposed MPPT is achieved by changing the generator damping load according to the excitation force induced by a regular wave. A hysteresis controller is applied to regulate the phase current intensity which allows the control of the linear force provided by the generator. The conversion system direct current (DC) bus voltage is adjusted by an isolated DC/DC converter with a proportional integral controller to define the appropriate duty-cycle.

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Design and Analysis of a Field-Modulated Tubular Linear Permanent Magnet Generator for Direct-Drive Wave Energy Conversion

Cited by 29 publications

References 9 publications

A Survey of Power Take-off Systems of Ocean Wave Energy Converters

A Survey of Power Take-off Systems of Ocean Wave Energy Converters

Investigation of Electromagnetic Wave Propagation Frequencies in Two-Dimensional Photonic Crystals with Finite Differences Method

Maximum Power Point Tracking for a Point Absorber Device with a Tubular Linear Switched Reluctance Generator

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