| 摘要 |
It is described an electrical yaw drive (8, 9, 10, 11, 12) for a wind turbine, wherein the wind turbine (1), wherein the wind turbine (1) comprises a wind turbine nacelle (3) and a wind turbine tower (2), wherein the electrical yaw drive (8, 9, 10, 11, 12) comprises an asynchronous motor (14, 20), an excitation capacitor bank (15, 21) and dump loads (16, 22), and wherein the excitation capacitor bank (15, 21) and the dump loads (16, 22) are electrically connectable to windings of the asynchronous motor (14, 20). Furthermore, wind turbines (1) comprising such electrical yaw drives (8, 9, 10, 11, 12) and a method for operating such wind turbines (1) are described. |
