Method and installation for extracting energy from a flowing fluid
AssigneeStichting Energieonderzoek Centrum Nederland
InventorsGustave Paul Corten, Pieter Schaak
Life of this patent
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Abstract
Turbine farm comprising at least a first turbine and at least a second turbine for energy extraction from a flowing fluid, wherein when the second turbine is on the lee side of the first turbine, under nominal power, the axial induction of the first turbine is lowered with respect to the second turbine, to reduce turbulence mainly at the location of the at least second turbine.
Claims13
Turbine farm comprising at least a first turbine and at least a second turbine for energy extraction from a flowing fluid, further comprising a control system, wherein the control system is able, when the second turbine is on the lee side of the first turbine, below nominal power, to lower the axial induction (a) of the first turbine with respect to the second turbine so as to extract less energy, by turning the blade angles of a rotor of the first turbine towards a feathering position, wherein the control system sets the axial induction (a) of the at least one first turbine in the farm as a function of the wind direction, and of the distance to the at least one second turbine located in the lee.
Method for a turbine farm comprising at least one first turbine and an at least second turbine for energy extraction from a flowing fluid, wherein the method comprises lowering the axial induction (a) of the first turbine with respect to the second turbine so as to extract less energy, when the second turbine is on the lee side of the first turbine, below nominal power, by turning the blade angles of the rotor of the first turbine towards a feathering position, the axial induction (a) of at least one first turbine in the farm being set as a function of the wind direction, and of the distance to at least one second turbine located in the lee.
Control system for a turbine farm comprising at least a first turbine and at least a second turbine for energy extraction from a flowing fluid, wherein the control system is able, when the second turbine is on the lee side of the first turbine, below nominal power, to lower the axial induction (a) of the first turbine with respect to the second turbine so as to extract less energy by turning the blade angles of the rotor of the first turbine towards a feathering position, the axial induction (a) of at least one first turbine in the farm being set as a function of the wind direction, and of the distance to the at least one second turbine located in the lee.
Turbine provided with control system wherein the control system includes at least a first turbine and at least a second turbine for energy extraction from a flowing fluid, characterised in that the control system is able, when the second turbine is on the lee side of the first turbine, below nominal power, to lower the axial induction (a) of the first turbine with respect to the second turbine so as to extract less energy by turning the blade angles of the rotor of the first turbine towards a feathering position, the axial induction (a) of at least one first turbine in the farm being set as a function of the wind direction, and of the distance to the at least one second turbine located in the lee.
Dependencies are inferred from the claim text.