Research on a Tubular Primary Permanent-Magnet Linear Generator for Wave Energy Conversions

Huang, Lei; Yu, Haitao; Hu, Minqiang; Liu, Chunyuan; Yuan, Bang

doi:10.1109/tmag.2013.2239981

Cited by 69 publications

(35 citation statements)

References 10 publications

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“…In most of the cases, constant speeds or sinusoidal speeds having sinusoidal shapes are common approximations for simulating PMLGs [25][26][27]. The typical range of vertical velocity of wave is 0-2 m/s with a time period from 4 to 6 s [28][29][30].…”

Section: Model Of the Oceanic Wavementioning

confidence: 99%

“…Different analyses have shown that the FSPMLGs made of PMs and steel cores have suffered from the problem of higher leakage flux leading to the reduction of electrical power generation. Tubular PMLGs have been proposed [14,21,26,27] to reduce cogging forces and also increase efficiency. The maintenance of tubular PMLG is difficult due to the presence of the coils inside the periphery.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Oceanic Wave Dynamics for Generation of Electrical Energy Using a Linear Generator

2016

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Electricity generation from oceanic wave depends on the wave dynamics and the behavior of the ocean. In this paper, a permanent magnet linear generator (PMLG) has been designed and analyzed for oceanic wave energy conversion. The proposed PMLG design is suitable for the point absorber type wave energy device. A mathematical model of ocean wave is presented to observe the output characteristics and performance of the PMLG with the variation of ocean waves. The generated voltage, current, power, applied force, magnetic flux linkage, and force components of the proposed PMLG have been presented for different sea wave conditions. The commercially available software package ANSYS/ANSOFT has been used to simulate the proposed PMLG by the finite element method. The magnetic flux lines, flux density, and field intensity of the proposed PMLG that greatly varies with time are presented for transient analysis. The simulation result shows the excellent features of the PMLG for constant and variable speeds related to wave conditions. These analyses help to select proper PMLG parameters for better utilization of sea wave to maximize output power.

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Section: Model Of the Oceanic Wavementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of the Oceanic Wave Dynamics for Generation of Electrical Energy Using a Linear Generator

2016

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“…As shown in [12], the parameters for flux density generated by the external PMs configuration are defined by a 1ne and b 1ne , which can be derived according to the conditions described by (2). The parameters for flux density generated by the internal PMs configuration are defined by a 1ni and b 1ni , which can be derived according to the conditions described by (3). I 0 (x,y) and K 0 (x,y) are modified Bessel functions of the first and second kind of the 0th order, respectively.…”

Section: A Flux Density Distribution Due To Pmsmentioning

confidence: 99%

Analysis and optimization of a double-sided air-cored tubular generator

Liang

Zhang

et al. 2015

2015 IEEE Magnetics Conference (INTERMAG)

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In this paper, the design and development of a double-sided, air-cored tubular generator (DSTG) is presented. The characteristics of air-cored, slot-less structures are investigated in terms of power density and efficiency. This is highly desirable for small and medium-sized renewable energy conversion systems. In this work, an analytical tool based on the magnetic vector potential method is built in order to achieve a fast but accurate method by which to analyze the machine. The analytical model is validated by finite element analysis. Further design improvements, based on the analytical and FE models are then suggested in order to enhance the performance of the DSTG. The final design of the DSTG is validated by test results from a developed prototype of the DSTG.

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“…Of particular interest is the implementation of these machines in systems dedicated to energy harvesting [1], [2], automotive industry [3]- [5], space applications [6], [7], manufacturing process [8], health care [9], and so on.…”

Section: Introductionmentioning

confidence: 99%

“…These are considered viable candidates when associated to a point absorber, i.e. a floating buoy having relatively small dimensions compared to the wavelength of the incident sea waves [1]. Such energy conversion system suitably matches with the wave oscillating movement.…”

Section: Introductionmentioning

confidence: 99%

Feature Investigation of a T-LPMSM Following the Selection of Its Slot-Pole Combination

Souissi

Abdennadher

Masmoudi

et al. 2017

IEEE Trans. on Ind. Applicat.

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This paper investigates the no-load and the on-load behaviour of a fractional-slot tubular-linear permanent magnet synchronous machine (T-LPMSM). The study is initiated by the selection of the machine slot-pole combination. To do so, a formulation of the air gap flux density, based on the solution of the magnetic potential vector equation in the air gap and in the PM regions, is derived. The electromagnetic model allows the prediction of the phase back-EMFs and of the cogging force. The effect of the slot-pole combination on these features is then considered to the aim of the optimal selection of the slot per pole and per phase. A case study considering the optimized slot per pole and per phase number is treated where the analyticallypredicted no-load features are validated by finite element analysis (FEA). The investigation is extended to the on-load characteristic which is predicted by FEA and is validated by experiments. Index Terms-fractional-slot tubular linear PM synchronous machines; air gap flux density distribution; no-load features; onload features; finite element analysis; experimental validation. 0093-9994 (c)

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Research on a Tubular Primary Permanent-Magnet Linear Generator for Wave Energy Conversions

Cited by 69 publications

References 10 publications

Analysis of the Oceanic Wave Dynamics for Generation of Electrical Energy Using a Linear Generator

Analysis of the Oceanic Wave Dynamics for Generation of Electrical Energy Using a Linear Generator

Analysis and optimization of a double-sided air-cored tubular generator

Feature Investigation of a T-LPMSM Following the Selection of Its Slot-Pole Combination

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