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WO2011091448A3 - Method of counteracting the tendency of a tethered electricity water current-driven turbine to dive when power is produced - Google Patents

Method of counteracting the tendency of a tethered electricity water current-driven turbine to dive when power is producedDownload PDF

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Publication number
WO2011091448A3
WO2011091448A3PCT/ZA2011/000004ZA2011000004WWO2011091448A3WO 2011091448 A3WO2011091448 A3WO 2011091448A3ZA 2011000004 WZA2011000004 WZA 2011000004WWO 2011091448 A3WO2011091448 A3WO 2011091448A3
Authority
WO
WIPO (PCT)
Prior art keywords
dive
tendency
tethered
power
counteracting
Prior art date
Application number
PCT/ZA2011/000004
Other languages
French (fr)
Other versions
WO2011091448A2 (en
Inventor
Stephen Gavin John Oldfield
Original Assignee
Stephen Gavin John Oldfield
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stephen Gavin John OldfieldfiledCriticalStephen Gavin John Oldfield
Publication of WO2011091448A2publicationCriticalpatent/WO2011091448A2/en
Publication of WO2011091448A3publicationCriticalpatent/WO2011091448A3/en

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Abstract

A method is described of controlling a tethered, underwater current driven turbine, power-generating device. The use of a wing to both offset the torque of the generators, and to control the tendency of the tethered device to dive when the generators produce power. Use in made of a tether (122,123) to the ocean floor to measure the tension on it so as to apply the appropriate wing flap angle. The turbine includes variable-pitch rotor blades (109,110). The pitch of the variable-pitch rotor blades (109,110) on the turbine in combination with the load on the anchor weight is adjusted such that the whole device does not create any slack on the tether cable (122,123) thereby counteracting the tendency of the device to dive.
PCT/ZA2011/0000042010-01-222011-01-21Method of counteracting the tendency of a tethered electricity water current-driven turbine to dive when power is producedWO2011091448A2 (en)

Applications Claiming Priority (2)

Application NumberPriority DateFiling DateTitle
ZA2010005122010-01-22
ZA2010/05122010-01-22

Publications (2)

Publication NumberPublication Date
WO2011091448A2 WO2011091448A2 (en)2011-07-28
WO2011091448A3true WO2011091448A3 (en)2011-11-24

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ID=44307670

Family Applications (1)

Application NumberTitlePriority DateFiling Date
PCT/ZA2011/000004WO2011091448A2 (en)2010-01-222011-01-21Method of counteracting the tendency of a tethered electricity water current-driven turbine to dive when power is produced

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WO (1)WO2011091448A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US10167842B2 (en)2014-08-292019-01-01Minesto AbMethod for controlling the operation of a submersible power plant

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Publication numberPriority datePublication dateAssigneeTitle
GB2490737B (en)2011-05-132013-04-10Sustainable Marine Technologies LtdA modular turbine assembly
JP2013217333A (en)*2012-04-112013-10-24Ihi CorpOcean current power generating equipment
GB2502166B (en)*2012-05-142015-05-27Sustainable Marine Energy LtdA flowing-water driveable turbine assembly
KR102033814B1 (en)*2013-02-042019-11-08미네스토 에이비Power plant comprising a structure and a vehicle
BR112015026524A2 (en)*2013-04-222017-07-25Ihi Corp subsea device and method for controlling the posture of the subsea device
CL2013001238A1 (en)*2013-05-032013-08-16Pavez Vasquez Claudio Marcelo Submersible fixing and support device for electrical generation equipment, consisting of a sealed capsule inside which allows the installation of control equipment, generator motor and electric board, the capsule joins a rigid floating structure formed by buoyant tubular structures that have waterproof and compressed air sealed cameras, valves and a communication system.
WO2014193281A1 (en)*2013-05-302014-12-04Minesto AbSubmersible power plant having multiple turbines
US9709026B2 (en)*2013-12-312017-07-18X Development LlcAirfoil for a flying wind turbine
KR101599708B1 (en)*2015-03-182016-03-04이동인Submersible platform for generating electricity
JP6627292B2 (en)*2015-07-102020-01-08株式会社Ihi Attitude control system and attitude control method for floating type underwater power generator
JP6821920B2 (en)*2016-02-222021-01-27株式会社Ihi Underwater floating device and depth control method
GB201610990D0 (en)*2016-06-232016-08-10Tidalstream LtdImprovements in or relating to underwater turbines
JP6926932B2 (en)*2017-10-182021-08-25株式会社Ihi Attitude control system for hydroelectric power generators
JP2020084813A (en)*2018-11-192020-06-04株式会社日立製作所Floating type offshore wind power generation system
CN110318932A (en)*2019-06-052019-10-11中国航天空气动力技术研究院A kind of multi-wall interference for underwater power generation

Citations (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US2501696A (en)*1946-01-121950-03-28Wolfgang KmenttStream turbine
WO2000042318A1 (en)*1999-01-122000-07-20Dehlsen Associates, Inc.A method of controlling operating depth of a device
WO2009004420A2 (en)*2007-06-292009-01-08Aquantis, L.L.C.Multi-point tethering and stability system and control method for underwater current turbine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US2501696A (en)*1946-01-121950-03-28Wolfgang KmenttStream turbine
WO2000042318A1 (en)*1999-01-122000-07-20Dehlsen Associates, Inc.A method of controlling operating depth of a device
WO2009004420A2 (en)*2007-06-292009-01-08Aquantis, L.L.C.Multi-point tethering and stability system and control method for underwater current turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US10167842B2 (en)2014-08-292019-01-01Minesto AbMethod for controlling the operation of a submersible power plant

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