科学素养与生活应用·英语30篇（1）

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风力发电机如何调节叶片以最大化能量捕获

Turbine blades pivot on hinges called pitch bearings, allowing precise angle adjustments during operation.
Sensors measure wind speed and direction every second, feeding data to the control system.
At low winds, blades face fully into the flow; at high winds, they feather slightly to limit rotation speed.
This prevents mechanical stress and protects generators from overload or damage.
Yaw motors rotate the entire nacelle to keep blades aligned with shifting wind directions.
Computational fluid dynamics simulations help engineers shape blade profiles for optimal lift-to-drag ratios.
Grid operators request curtailment during surplus supply, so turbines can feather completely to stop spinning.
Every adjustment balances energy yield, equipment longevity, and grid stability intelligently.