Electricity-producing wind turbines have four basic components:

·旋转轮是由附属于旋翼叶毂的两片或三片叶片组成。

· a rotor consisting of two or three blades attached to a hub

·发电机产生的是交流电的形式。

· a generator that produces electricity in the form of alternating current

·优化控制和保护系统，确保在安全限度之内进行作业。

· a control and protection system that optimizes performance and keeps the machinery operating within safe limits

·塔楼，能提高旋转轮的高度，离开地面。

· a tower that raises the rotor off the ground.

现代风力涡轮机利用极少数量的，但非常大的叶片(直径介于40至80米)来捕获风能，从空气当中尽最大可能提取能量。叶片上设置不同的角度，以应付不同的风速，发电机和刀片可以打开以面对不断变化的风向。涡轮机安装在塔楼40到80米的高度，为的是方便捕捉更强的风流。

Modern wind turbines make use of very few but very large blades (ranging between 40 to 80 metres in diameter) to capture wind energy, extracting energy from the largest possible volume of air. The blades are set at different angles to cope with varying wind speeds, and the generator and the blades can be turned to face the changing direction of the wind. The turbines are mounted on towers 40 to 80 metres tall, so as to capture stronger wind flows.

涡轮机的两种类型：

Two types of turbines