What types of wind turbines are there?

Although there are many types of wind turbines, they can be divided into two categories: ① Horizontal axis wind turbines, the rotation axis of the wind wheel is parallel to the wind direction; ② Vertical axis wind turbines; , the axis of rotation of the wind wheel is perpendicular to the ground or the direction of the air flow. Horizontal axis wind turbine: Horizontal axis wind turbines can be divided into two types: lifting type and drag type. Lift wind turbines spin quickly, while drag wind turbines spin slowly. For wind power generation, step-up type horizontal axis wind turbines are mainly used. Most horizontal axis wind turbines are equipped with a wind-facing device that rotates when the wind direction changes. For small wind turbines, this wind device uses a tail rudder, while for large wind turbines, a sensing elementn of the wind direction and a servo system are used. A wind turbine with a transmission mechanism consisting of a motor and a wind wheel in front of the tower is called a leeward wind turbine, while the wind wheel behind the tower is a leeward wind turbine. There are many styles of horizontal axis wind turbines. Some have the wind turbine blades reversed, some are installed on another tower, which can reduce the cost of the tower when the power output is certain, and some generate vortices around the wind turbine to focus . air flow. Increase airflow speed. Vertical Axis Wind Turbines: Vertical axis wind turbines do not need to face into the wind when the wind direction changes, which is a major advantage over horizontal axis wind turbines. This not only simplifies the structural design, but also reduces the gyroscopic force when the wind wheel fface the wind. There are several types of vertical axis wind turbines that use resistance to rotate. One of them is a wind wheel made of flat plates and quilts, which is a pure resistance device; the S type wind turbine has some lift, but is. primarily a resistance device. These devices have a high starting torque but a low tip speed ratio and provide low power output when the size, weight and cost of the wind turbine are fixed.