Patent ID: 8206262
Filing Date: 2012-06-26
Classification: F03D,F05B,F16H,Y02E,Y10T

Abstract:
1. A method for changing the power range of an equalising gear of a wind energy system, the equalising gear comprising a gear unit having an input, an output, and an input/output, wherein the input is connected to a rotor of the wind energy system, the output is connected to a generator and the input/output is connected to a first shaft of a continuously variable gearing, a second shaft of which is connected to the output of the gear unit, the method comprising following steps: regulating, upon changing wind strength, the input of the gear unit to a small to zero input torque; detaching the generator from a grid; switching of a switchable gearing, which connects the first shaft of the continuously variable gearing to the input/output of the gear unit; adjusting a rotational speed of the output of the gear unit until a synchronous speed is reestablished at the generator; and attaching the generator to the grid.