风力发电如何产生的?

How is wind power produced?

风力涡轮机利用风能进行发电。风力使涡轮叶片转动，使轴旋转起来，与发电机相连接，从而得以发电。当地的变压转换器可以用于加速电压，使电力可以通过传动装置和配电线路，送到各个家庭，各个企业和其他的用户供其使用。

Wind turbines harness the wind to generate electricity. Wind turns the turbine blades, which spin a shaft, which connects to the generator and makes electricity. A local transformer is then used to step up the electrical voltage, so that the electricity can then be sent through transmission and distribution lines to homes, businesses and other users.

通常当风力达到时速为每小时13公里或更大时，风力发电机便会产生电力。为了安全起见，当风速达到每小时90公里的时候，发电机会停止工作。

Wind turbines generally produce electricity when winds blow at speeds of 13 kilometres an hour or greater. They shut down at above 90 kilometres per hour for safety reasons.

风力涡轮机也可以为机械提供电力使其做特殊的工作，例如研磨谷粒或抽水。在加拿大大草原上，举个例子，就有几千个抽水的风力涡轮机。

Wind turbines can also be used to generate mechanical power for specific tasks such as grinding grain or pumping water. On the Canadian Prairies, for example, there are several thousand wind turbines that pump water.

风力涡轮机的基本组成部分

Basic components of wind turbines

电力生产的风力涡轮机有4个基本组成部分：