| 摘要 |
Methods and apparatus of improved windmill design and operation are discussed. An improved windmill assembly includes a support, a movable counterweight and a counterweight position adjuster. The windmill tower experiences oscillations, e.g., oscillations from wind variation, turbulence, varying stress levels, structural design attributes and/or balance considerations. The windmill tower is also subjected to external forces, e.g., a steady state wind pushing the tower in one direction. The windmill assembly includes at least one sensor to measure tower position, tower motion, and/or wind velocity. A computer module, as part of the windmill assembly, processes the sensor output information and uses stored modeling information to determine counterweight position such as to dampen oscillations and/or counteract steady state forces. Control signals are generated and communicated to an actuator to move the counterweight in response to the determination. |
