Efficiency and Dynamic Performance of Digitally Displacement Hydraulic Transmission in Tidal Current Energy Converters

Gregory Payne; Aristides Kiprakis; M. Ehsan; Win Rampen; John Chick; Robin Wallace

doi:DOI: 10.1243/09576509JPE298

Efficiency and Dynamic Performance of Digitally Displacement Hydraulic Transmission in Tidal Current Energy Converters

Gregory Payne, Aristides Kiprakis, M. Ehsan, Win Rampen, John Chick, Robin Wallace

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

Tidal current turbines extract kinetic energy from tidal current in much the same way as wind turbines do with wind. Tidal current velocities are by nature slow and variable, whereas electricity generation typically requires fast and steady rotary motion. This article investigates the performance of a hydraulic transmission system based on Digital Displacement™ technology, which allows variable speed of the tidal current turbine rotor while maintaining constant generator shaft speed. The case study of a generic horizontal axis tidal turbine is considered. Control strategies based on rotor variable speed are derived to optimize yearly power generation and to cope with short-term variations in stream velocity.

Original language	English
Pages (from-to)	207-218
Number of pages	12
Journal	Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
Volume	221
Issue number	2
DOIs	https://doi.org/DOI: 10.1243/09576509JPE298
Publication status	Published - 1 Mar 2007

Keywords / Materials (for Non-textual outputs)

tidal energy, tidal current turbine, hydraulic transmission, digital displacement

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DOI: 10.1243/09576509JPE298

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9 Nov 2015
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Cite this

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title = "Efficiency and Dynamic Performance of Digitally Displacement Hydraulic Transmission in Tidal Current Energy Converters",

abstract = "Tidal current turbines extract kinetic energy from tidal current in much the same way as wind turbines do with wind. Tidal current velocities are by nature slow and variable, whereas electricity generation typically requires fast and steady rotary motion. This article investigates the performance of a hydraulic transmission system based on Digital Displacement{\texttrademark} technology, which allows variable speed of the tidal current turbine rotor while maintaining constant generator shaft speed. The case study of a generic horizontal axis tidal turbine is considered. Control strategies based on rotor variable speed are derived to optimize yearly power generation and to cope with short-term variations in stream velocity.",

keywords = "tidal energy, tidal current turbine, hydraulic transmission, digital displacement",

author = "Gregory Payne and Aristides Kiprakis and M. Ehsan and Win Rampen and John Chick and Robin Wallace",

year = "2007",

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day = "1",

doi = "DOI: 10.1243/09576509JPE298",

language = "English",

volume = "221",

pages = "207--218",

journal = "Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy",

issn = "0957-6509",

publisher = "SAGE Publications Ltd",

number = "2",

}

Efficiency and Dynamic Performance of Digitally Displacement Hydraulic Transmission in Tidal Current Energy Converters. / Payne, Gregory; Kiprakis, Aristides; Ehsan, M. et al.
In: Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Vol. 221, No. 2, 01.03.2007, p. 207-218.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Efficiency and Dynamic Performance of Digitally Displacement Hydraulic Transmission in Tidal Current Energy Converters

AU - Payne, Gregory

AU - Kiprakis, Aristides

AU - Ehsan, M.

AU - Rampen, Win

AU - Chick, John

AU - Wallace, Robin

PY - 2007/3/1

Y1 - 2007/3/1

N2 - Tidal current turbines extract kinetic energy from tidal current in much the same way as wind turbines do with wind. Tidal current velocities are by nature slow and variable, whereas electricity generation typically requires fast and steady rotary motion. This article investigates the performance of a hydraulic transmission system based on Digital Displacement™ technology, which allows variable speed of the tidal current turbine rotor while maintaining constant generator shaft speed. The case study of a generic horizontal axis tidal turbine is considered. Control strategies based on rotor variable speed are derived to optimize yearly power generation and to cope with short-term variations in stream velocity.

AB - Tidal current turbines extract kinetic energy from tidal current in much the same way as wind turbines do with wind. Tidal current velocities are by nature slow and variable, whereas electricity generation typically requires fast and steady rotary motion. This article investigates the performance of a hydraulic transmission system based on Digital Displacement™ technology, which allows variable speed of the tidal current turbine rotor while maintaining constant generator shaft speed. The case study of a generic horizontal axis tidal turbine is considered. Control strategies based on rotor variable speed are derived to optimize yearly power generation and to cope with short-term variations in stream velocity.

KW - tidal energy, tidal current turbine, hydraulic transmission, digital displacement

U2 - DOI: 10.1243/09576509JPE298

DO - DOI: 10.1243/09576509JPE298

M3 - Article

SN - 0957-6509

VL - 221

SP - 207

EP - 218

JO - Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy

JF - Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy

IS - 2

ER -

Efficiency and Dynamic Performance of Digitally Displacement Hydraulic Transmission in Tidal Current Energy Converters

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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