| 摘要 |
The invention relates to a wind energy plant, comprising a rotor (2) having blades (21) and a generator (13) driven by said rotor for generating electric energy, wherein the pitch of the blades (21) can be adjusted and a pitch system (4) for adjusting the pitch angle (?) of the blades (21) is provided, which is supplied by a hub power source (40), wherein further an additional electric load (5) is provided on the hub, and wherein a pitch power control device (6) is provided, which dynamically distributes the power of the hub power source (40) between the pitch system (4) and the additional electric load (5) and further acts on the pitch system (4) such that the power consumption thereof during high-load operation is reduced. In this way, the power consumption of the pitch system (4) during high-load operation can be reduced and additional power provided for operating the additional load (5). Even high-performance additional loads (5), such as a blade heater, can be operated in this way, without having to boost the hub power source (40). |
