The Goldwind 2500 kW direct drive unit has a wheel diameter of 90 meters or 93 meters and a hub height of 70 meters or 80 meters. The specific selection of the model depends on the specific wind resource data of the wind farm, the estimated maximum wind speed once in 50 years, and economic and technical comparison. The Goldwind 2.5 MW direct drive unit essentially inherits the now mature 1.5 MW Goldwind direct drive technology. It has no gearbox, no oil leakage or subsequent gearbox failure, and has high power generation efficiency and low starting wind speed, especially in small areas. evident during windy periods.
As of March 2020, the current price of wind power equipment is generally around 900,000 euros/MW, or 7.61 million RMB. 4 million people can buy wind power equipmentien of 0.5 MW. The price of a 300 kW wind turbine is about 3.2 million yuan, and there are currently 0.5-2.0 MW wind power equipment on the market.
It depends on the brand you choose, the power, the type of configuration, etc. Generally speaking, domestic brands such as Yuchai and Weichai are relatively cheaper, while international brands like Cummins have absolutely superior technology and are relatively expensive. The higher the power, the higher the price. The configuration level also directly affects the price.
Detailed information:
The principle of wind energy production is to Use wind power to spin the windmill blades, then increase the rotation speed with the speed boost to encourage the generator to produce electricity. According to the technology ofWith wind turbines, electricity production can begin at a breeze speed (the degree of breeze) of around three meters per second. Wind energy is becoming a craze worldwide because it does not require the use of fuel and does not produce radiation or air pollution.
The devices needed to produce wind energy are called wind turbines. This type of wind turbine can be roughly divided into three parts: the wind wheel (including the tail rudder), the generator, and the tower. (Large wind power plants basically don't have tail rudders, and usually only small ones (including domestic types) have tail rudders).
The wind wheel is an important element that converts the kinetic energy of the wind into mechanical energy. It is made up of several blades. When the wind blows towards the blades, an aerodynamic force is generated on the blades to rotatethe wind wheel. The blade material requires high strength and light weight and is often made of fiberglass or other composite materials (such as carbon fiber). (There are also vertical wind turbines, S-shaped rotating blades, etc., which have the same function as conventional propeller-type blades).
Baidu Encyclopedia - Wind Power Generation