摘要:
The present invention relates to a braking device (1) for a wind power plant. A brake drum (3) is provided, acting on a primary shaft, particularly a generator and/or transmission shaft. A plurality of braking elements (5) that can be radially adjusted toward the outside act on the brake drum (3) and can be adjusted by way of a central fluid cylinder unit (7) and fixed in the circumferential direction or rotational direction of the primary shaft by way of a coupling unit (9). The coupling unit (9) can be rigidly connected to a component that is fixed with respect to the primary shaft. The brake drum (3), fluid cylinder unit (7) and coupling unit (9) comprise a central through-passage (38, 78, 98), respectively, through which a secondary shaft, particularly an actuating shaft or a so-called pitch shaft, and/or the primary shaft, can pass, which can be rotated independently from the primary shaft and the braking device (1).
摘要:
Die Erfindung betrifft eine Anordnung sowie ein Verfahren zum Umwandeln von Strömungsenergie eines Fluids, insbesondere in einer Windkraftanlage, mit einer Rotoranordnung (110-410, 610), welche durch das Fluid derart antreibbar ist, dass eine durch die Rotoranordnung (110-410, 610) verrichtete mechanische Arbeit einem strömenden Wärmeträger (130-430, 630) Wärme zuführt, und einer Wärmepumpe (120-420, 620), welche einen Verdampfer (121-421, 621) zur Verdampfung eines flüssigen Kältemittels (125, 625) aufweist, wobei die Wärmepumpe (120-420, 620) derart an die Rotoranordnung (110-410, 610) gekoppelt ist, dass die Verdampfung des flüssigen Kältemittels (125) zumindest teilweise unter Ausnutzung der dem Wärmeträger (130-430, 630) zugeführten Wärme erfolgt.
摘要:
Control device for a yaw system of a wind power plant, having at least one actuating device which comprises a drive (20) and a gear mechanism (23) and is connected between a supporting structure (3) and a machine support (4) which is mounted on the supporting structure (3) such that it can be rotated about a yaw axis (6), and at least one yaw damper (30), by means of which the machine support (4) can be fixed on the supporting structure (3), wherein the yaw damper (30) acts on the drive train of the actuating device between the drive (20) and the gear mechanism (23).
摘要:
It is intended to provide a power generating apparatus and a rotor locking method for the apparatus, which is capable of locking the rotor without using a huge braking mechanism. The power generating apparatus of renewable energy type 1 includes a blade 2A, a rotor 2 including a hub 2B and a main shaft 2C, a hydraulic pump 20 of variable displacement type driven by rotation of the rotor 2, a hydraulic motor 22 driven by operating oil pressurized by the hydraulic pump 20, and a generator 6 coupled to the hydraulic motor 22. The rotor locking method for the power generating apparatus 1 may include the steps of: decelerating 2 the rotor by adjusting a pitch angle of the blade 2A: after the decelerating step, stopping the rotor 2 by applying a braking force by the hydraulic pump 20 to the rotor 2; and locking the rotor 2 so that the rotor 2 is immovable in a rotation direction.
摘要:
A power generating apparatus of renewable energy type 1 is provided with a blade 2A, a hub 2B to which the blade 2A is attached, a main shaft 2C rotating with the hub 2B, a generator 6 configured to be driven by rotation of the main shaft, and a turning unit 150 including a driving source 152 for outputting a rotational torque of the main shaft 2C and a switching system 154 provided between the driving source 152 and the main shaft 2C and configured to switch a state of the main shaft between a turning state and a non-turning state.
摘要:
A method of positioning a wind turbine rotor 160 comprises defining a predetermined angular position in a main rotation plane of the rotor 160 and controlling a rate of deceleration of the rotor, such as to stop the rotor at the predetermined angular position.
摘要:
Die Erfindung betrifft eine Anordnung sowie ein Verfahren zum Umwandeln von Strömungsenergie eines Fluids, insbesondere in einer Windkraftanlage, mit einer Rotoranordnung (110-410, 610), welche durch das Fluid derart antreibbar ist, dass eine durch die Rotoranordnung (110-410, 610) verrichtete mechanische Arbeit einem strömenden Wärmeträger (130-430, 630) Wärme zuführt, und einer Wärmepumpe (120-420, 620), welche einen Verdampfer (121-421, 621) zur Verdampfung eines flüssigen Kältemittels (125, 625) aufweist, wobei die Wärmepumpe (120-420, 620) derart an die Rotoranordnung (110-410, 610) gekoppelt ist, dass die Verdampfung des flüssigen Kältemittels (125) zumindest teilweise unter Ausnutzung der dem Wärmeträger (130-430, 630) zugeführten Wärme erfolgt.
摘要:
A hydraulic station in a hydraulic system of a wind turbine includes a tank for storing working fluid, first and second pumps fluidly connected to the tank, first and second flow paths extending from the respective first and second pumps to a hydraulic circuit, and first and second relief valves in fluid communication with the respective first and second flow paths. The first pump and first relief valve are controlled based on maintaining pressure of the working fluid in the hydraulic circuit between a first minimum limit and first maximum limit. If the pressure falls below the first minimum limit, the second pump and second relief valve are controlled in addition to the first pump and first relief valve, with the control then based on a second maximum limit and second minimum limit.