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AssigneeWindurance LLC
InventorsPaul John Rowan, Stephen P. Jones, Alan Duane Cleland
Estimating the term…
In a wind turbine/generator having a rotatable hub, at least one blade rotatably secured to the hub, a pitch control system for adjusting pitch of each blade, the pitch control system located within the rotatable hub, a stationary nacelle, and a slip ring assembly at a junction of an electrical circuit between the rotatable hub and the stationary nacelle, the slip ring assembly operatively arranged for transmission of electrical signals between equipment located within the rotating hub and equipment located within the stationary nacelle, an apparatus for grid loss ride-through for the pitch control system, comprising for example, operational amplifiers for sensing and monitoring power on the rotating side of the slip ring assembly, and, a contactor coil, for example, for supplying power to the pitch control system from a backup power source when the sensed power drops to a predetermined level.
In a wind turbine/generator having a rotatable hub, at least one blade rotatably secured to said hub, a pitch control system for adjusting pitch of each said blade, said pitch control system located within said rotatable hub, a stationary nacelle, and a slip ring assembly at a junction of an electrical circuit between said rotatable hub and said stationary nacelle, said slip ring assembly operatively arranged for transmission of electrical signals between equipment located within said rotating hub and equipment located within said stationary nacelle, an apparatus for grid loss ride-through for said pitch control system, comprising:
In a wind turbine/generator having a rotatable hub, at least one blade rotatably secured to said hub, a pitch control system for adjusting pitch of each said blade, said pitch control system located within said rotatable hub, a stationary nacelle, and a slip ring assembly at a junction of an electrical circuit between said rotatable hub and said stationary nacelle, said slip ring assembly operatively arranged for transmission of electrical signals between equipment located within said rotating hub and equipment located within said stationary nacelle, a method for grid loss ride-through for said pitch control system, comprising the steps of:
Dependencies are inferred from the claim text.