| 摘要 |
A blade pitch-angle control apparatus (40) is provided which can reduce the number of machining processes required for manufacturing a hub and which improves the maintainability due to a reduction in weight of each of hydraulic cylinders (41A) and (41B). The blade pitch-angle control apparatus (40), which is used in a wind turbine generator having a plurality of blades and which individually operates the pitch angle of each of the blades, uses the two hydraulic cylinders (41A) and (41B) to operate each of the blades. |
