A method of controlling an airborne object (2), such as a kite or a glider, is disclosed. The airborne object (2) may be an airborne energy generating system. The airborne object (2) is coupled to a part of a wind turbine (1), such as a nacelle (4), a tower (3) or a foundation, via a cable (7). At least one parameter related to movements (8) of the tower (3) of the wind turbine (1) is measured, and a cable force (9) of the cable (7) acting on the wind turbine (1) is adjusted, based on the at least one measured parameter. Thereby the tower movements (8) can be counteracted and fatigue can be reduced.

A method of controlling an airborne object (2), such as a kite or a glider, is disclosed. The airborne object (2) may be an airborne energy generating system. The airborne object (2) is coupled to a part of a wind turbine (1), such as a nacelle (4), a tower (3) or a foundation, via a cable (7). At least one parameter related to movements (8) of the tower (3) of the wind turbine (1) is measured, and a cable force (9) of the cable (7) acting on the wind turbine (1) is adjusted, based on the at least one measured parameter. Thereby the tower movements (8) can be counteracted and fatigue can be reduced.

Disclosed is a control device for power kites. It consists of a tall Y-shaped structure, the base of which is connected to the center of a horizontal control bar arranged perpendicular to the structure. An articulation forms the connection between the base of the structure and the center of the horizontal control bar. The control lines for the leading edge and the control lines for the trailing edge of a power kite are attached to the front and rear pre-lines of the device. Compared to a standard kite bar, the disclosed control device makes it easier for the user to balance using very short lines.

A kite (10) which includes a canopy (12) comprising an upper sail (14) and a plurality of rib bridles (26) arranged substantially at an inclined angle relative the upper sail (14), wherein the rib bridles (26) are further connectable to upper sail bridles (32), which upper sail bridles (32) extend substantially at an inclined angle away from the rib bridles (22).

A kite (10) which includes a canopy (12) comprising an upper sail (14) and a plurality of rib bridles (26) arranged substantially at an inclined angle relative the upper sail (14), wherein the rib bridles (26) are further connectable to upper sail bridles (32), which upper sail bridles (32) extend substantially at an inclined angle away from the rib bridles (22).

Traction air device with multiple wing contours for a wind power generation plant and wind power generation plant utilizing the air device.

Traction air device with multiple wing contours for a wind power generation plant and wind power generation plant utilizing the air device.

A method of loading a bladder into an outer envelope of an inflatable kite involves inserting the bladder through a valve opening in a portion of the outer envelope of the inflatable kite until a valve of the bladder is positioned in the valve opening. The preferred manner of inserting the bladder into position is accomplished by securing a line to a remote end of the bladder and using the line to draw the bladder through the valve opening.

A method of loading a bladder into an outer envelope of an inflatable kite involves inserting the bladder through a valve opening in a portion of the outer envelope of the inflatable kite until a valve of the bladder is positioned in the valve opening. The preferred manner of inserting the bladder into position is accomplished by securing a line to a remote end of the bladder and using the line to draw the bladder through the valve opening.

The present invention relates to wind energy park connected to an electrical grid, having airborne wind energy systems (AWES), e.g. with kites. The wind energy park has an electrical DC network connecting the plurality of AWES and a grid converter unit for converting DC to AC, and transmit AC to the electrical grid. The wind energy park control unit controls the AWES to produce electrical power to the electrical grid by alternating between a power production phase, and a recovery phase so to balance the supply of power to the electrical grid according a demanded setpoint. An advantage is that the grid converter may be smaller, as compared to an AC network, because the power is evened out with the negative power from the AWES being in recovery phase. In this way, the invention stabilizes the grid and has a grid forming capability.