Abstract: A method of cooling a wind turbine. A cooling system is operated with a first setpoint temperature to cool the wind turbine over a first period. The method comprises measuring a temperature of the wind turbine over the first period to obtain temperature measurements; allocating each of the temperature measurements to a temperature range, wherein one or more of the temperature ranges are critical temperature ranges; and for each critical temperature range, comparing a parameter indicative of a number of the temperature measurements allocated to the critical temperature range with a threshold; selecting a second setpoint temperature on the basis of the comparison(s); and operating the cooling system with the second setpoint temperature over a second period. An equivalent method is also disclosed in which a power setting of the wind turbine is changed on the basis of the comparison(s).

Abstract: A wind turbine nacelle comprising a plurality of power generating components and a fluid system, wherein the nacelle includes a nacelle cover comprising a lower cover or ‘base’, a roof and side walls, thereby defining an interior space of the nacelle, wherein the fluid system includes a fluid tank that is integrated into the nacelle cover. The invention extends to a panel of a wind turbine nacelle cover, wherein the panel is configured to define at least apart of, or is coupled to, a fluid tank of a fluid system of the wind turbine.

Abstract: A method of cooling a wind turbine. A cooling system is operated with a first setpoint temperature to cool the wind turbine over a first period. The method comprises measuring a temperature of the wind turbine over the first period to obtain temperature measurements; allocating each of the temperature measurements to a temperature range, wherein one or more of the temperature ranges are critical temperature ranges; and for each critical temperature range, comparing a parameter indicative of a number of the temperature measurements allocated to the critical temperature range with a threshold; selecting a second setpoint temperature on the basis of the comparison(s); and operating the cooling system with the second setpoint temperature over a second period. An equivalent method is also disclosed in which a power setting of the wind turbine is changed on the basis of the comparison(s).

Abstract: A wind turbine nacelle comprising a plurality of power generating components and a fluid system, wherein the nacelle includes a nacelle cover comprising a lower cover or ‘base’, a roof and side walls, thereby defining an interior space of the nacelle, wherein the fluid system includes a fluid tank that is integrated into the nacelle cover. The invention extends to a panel of a wind turbine nacelle cover, wherein the panel is configured to define at least apart of, or is coupled to, a fluid tank of a fluid system of the wind turbine.

Abstract: A generator for a wind turbine is disclosed. The generator comprises a rotor configured to rotate about a rotational axis, and at least one stator arranged next to the rotor. Each stator comprises at least one flux-generating module facing the rotor but spaced therefrom, thereby forming an air gap between the rotor and each flux-generating module. Each stator also comprises at least one bearing unit, each bearing unit comprising a body defining a cavity with an open end facing the rotor. The generator further comprises a source of pressurized fluid communicating with each bearing unit, and the body of each bearing unit directs the fluid towards the rotor to help maintain the air gap between the rotor and each flux-generating module. Thereby the air gap between the rotor and the flux-generating modules is controlled by means of the fluid bearing units. The invention further provides a wind turbine comprising such a generator.

Abstract: A generator (5) for a wind turbine (1) is disclosed. The generator (5) comprises a rotor (3) configured to rotate about a rotational axis, and at least one stator (4) arranged next to the rotor (3). Each stator (4) comprises at least two subunits (8), the subunits (8) being arranged side-by-side along a moving direction of the rotor (3). Each subunit (8) comprises at least one flux-generating module (9) facing the rotor (3) but spaced therefrom, thereby defining an air gap between the rotor (3) and each flux-generating module (9). The subunits (8) are movable relative to each other along a direction which is substantially transverse to the moving direction of the rotor (3). This allows a subunit (8) to move in a manner which adjusts the air gap without affecting the position and the air gap of a neighboring subunit (8). Thereby variations in the rotor (3) can be compensated and a uniform and constant air gap can be maintained.

Abstract: A generator (5) for a wind turbine (1) is disclosed. The generator (5) comprises a rotor (3) configured to rotate about a rotational axis, and at least one stator (4) arranged next to the rotor (3). Each stator (4) comprises at least one flux-generating module (9) facing the rotor (3) but spaced therefrom, thereby forming an air gap between the rotor (3) and each flux-generating module (9). Each stator (4) also comprises at least one bearing unit (12), each bearing unit (12) comprising a body (16) defining a cavity (14) with an open end facing the rotor (3). The generator (5) further comprises a source of pressurized fluid communicating with each bearing unit (12), and the body (16) of each bearing unit (12) directs the fluid towards the rotor (3) to help maintain the air gap between the rotor (3) and each flux-generating module (9). Thereby the air gap between the rotor (3) and the flux-generating modules (9) is controlled by means of the fluid bearing units (12).

Abstract: A generator (5) for a wind turbine (1) and a wind turbine (1) are disclosed. The generator (5) comprises a rotor (3) configured to rotate about a rotational axis, and at least one stator (4) arranged next to the rotor (3), each stator (4) comprising at least one flux-generating module (9) facing the rotor (3) but spaced therefrom. The flux-generating module(s) (9) is/are mounted on a stator support structure (7, 10). The stator support structure (7, 10) defines a pre-loaded spring force acting against magnetic forces occurring between the rotor (3) and the flux-generating module(s) (9) during operation of the generator (5). The preloaded spring force is adjustable, e.g. by means of a piston arrangement (17). Thereby it is possible to maintain a preloaded spring force which is capable of acting against the magnetic forces occurring between the rotor (3) and the flux-generating module(s) (9), even if operating conditions are changed.