Linear Tubular Permanent-Magnet Generators for the Inertial Sea Wave Energy Converter

Cappelli, L.; Marignetti, Fabrizio; Mattiazzo, Giuliana; Giorcelli, Ermanno; Bracco, Giovanni; Carbone, Silvio; Attaianese, C.

doi:10.1109/tia.2013.2291939

Cited by 58 publications

(21 citation statements)

References 21 publications

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“…A number of linear electrical machines have been designed for direct drive methods of harnessing wave power [5,6,[10][11][12]17] The comparatively large internal inductance of the generator coils of some linear machines results in a low power factor, as noted by Ran and Hodgins [11,17]. Hence, these machines require substantial reactive power compensation in order to increase their output power factors.…”

Section: Controls Of Linear Wave Energy Converters (Lwecs)mentioning

confidence: 99%

“…Energies 2017, 10, 114 2 of 15 an attractive technology with advantages of reduced complexity, reduced maintenance and system cost [5][6][7][8][9][10][11][12][13]. At the same time, appropriate control and power conversion methods need to be developed for linear wave energy converters, to increase the efficiency of electrical power extraction and conversion.…”

Section: Introductionmentioning

confidence: 99%

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Designing and Testing Composite Energy Storage Systems for Regulating the Outputs of Linear Wave Energy Converters

Nie

Xiao

Hiralal³

et al. 2017

Energies

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Linear wave energy converters generate intrinsically intermittent power with variable frequency and amplitude. A composite energy storage system consisting of batteries and super capacitors has been developed and controlled by buck-boost converters. The purpose of the composite energy storage system is to handle the fluctuations and intermittent characteristics of the renewable source, and hence provide a steady output power. Linear wave energy converters working in conjunction with a system composed of various energy storage devices, is considered as a microsystem, which can function in a stand-alone or a grid connected mode. Simulation results have shown that by applying a boost H-bridge and a composite energy storage system more power could be extracted from linear wave energy converters. Simulation results have shown that the super capacitors charge and discharge often to handle the frequent power fluctuations, and the batteries charge and discharge slowly for handling the intermittent power of wave energy converters. Hardware systems have been constructed to control the linear wave energy converter and the composite energy storage system. The performance of the composite energy storage system has been verified in experiments by using electronics-based wave energy emulators.

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Section: Controls Of Linear Wave Energy Converters (Lwecs)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Designing and Testing Composite Energy Storage Systems for Regulating the Outputs of Linear Wave Energy Converters

Nie

Xiao

Hiralal³

et al. 2017

Energies

View full text Add to dashboard Cite

show abstract

“…Since the translator of LPMG reciprocates, the direction and speed of the motion of the translator vary. Subsequently, the frequency and magnitude of the induced voltage and stator current as well as the output power vary [9]- [12]. These characteristics of the LPMG cannot satisfy the gird code for the integration of the wave generation into the power network.…”

Section: Aws and Wec Systemmentioning

confidence: 99%

Fuzzy Logic Controller Based Dynamic Stability Enhancement of Wpgs, Pv and Super Capacitor Inter-Connected System

2017

IJAERD

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This paper proposes a new method for enhancing the dynamic stability enhancement of a hybrid wave and photovoltaic(PV) power generation system integrated into a distribution power grid. The wave power generation system (WPGS) is simulated by a linear permanent magnet generator (LPMG) driven by an Archimedes wave swing (AWS). The output of the WPGS and the PV system are connected to a common DC-link through a voltage-source converter(VSC) and a DC/DC boost converter, respectively. The common DC-link is interfaced to the distribution power grid via a voltage-source inverter (VSI). A super-capacitor (SC)is utilized to smooth the generated power delivered to the distribution power grid. The proposed control scheme to maintain stable operation of the system while achieving maximum power extraction for the wave system and the PV system is test in matlab environment and results are compared with conventional controller.

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“…The simulations were performed assuming the operation as a generator, being this kind of machines particularly suitable for the conversion of form of mechanical energy of linear type into electrical energy. In particular, the scientific community is nowadays focusing attention on exploring electrical devices able to ensure electrical energy directly from the linear motion of sea waves [7][8][9].…”

Section: Developed Simulationsmentioning

confidence: 99%

A Comparison Among Different Kinds of Stator Lamination in Tubular Linear Machines

Cipriani¹,

Corpora²,

Dio³

et al. 2016

PIER M

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Abstract-In this paper the authors perform a comparison among three different stator structures for a Tubular Permanent Magnet Linear Machine. Each structure is characterized by its own lamination which is expected to contribute to the overall performance of the machine. A detailed analysis of the main figures of merit of the three configurations has been carried out in order to identify the configuration with the best characteristics. Significant data such as flux distribution, rated voltage and current, force on the moved and power losses have been compared. The results show that the choice of a mixed stator lamination allows to improve the performance of these machines.

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Linear Tubular Permanent-Magnet Generators for the Inertial Sea Wave Energy Converter

Cited by 58 publications

References 21 publications

Designing and Testing Composite Energy Storage Systems for Regulating the Outputs of Linear Wave Energy Converters

Designing and Testing Composite Energy Storage Systems for Regulating the Outputs of Linear Wave Energy Converters

Fuzzy Logic Controller Based Dynamic Stability Enhancement of Wpgs, Pv and Super Capacitor Inter-Connected System

A Comparison Among Different Kinds of Stator Lamination in Tubular Linear Machines

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