The largest one is 5MW in Denmark and one in China. Generally, 2MW, 1.5MW, or smaller 0.8MW are used in China.
The mainstream models currently used in wind farms are all 1.5MW units, that is, the full power of the wind turbine is 1500KW. This 1500 is the output power. There is no need to calculate the power factor. But now Wind turbines all have certain over-generation capabilities, and some models can even generate up to 1700KW. However, considering the particularity of wind farms;
The power changes rapidly according to changes in wind, so full power is not the case. a lot of. Current wind farm planning generally calculates one phase as no more than 50MW, so a single 1.5MW wind turbine with 33 units has a total power of 49.5MW.
Extended information:
Electrical power calculation formula: P=W/t =UI;
In a pure resistance circuit, according to Ohm’s law U=IR, substitute P= You can also get in the UI: P=I2R=(U2)/R
In dynamics: Power calculation formula: 1.P=W/t (average power) 2.P=FV; P= Fvcosα (instantaneous power)
Because W = F (F force) × S (s displacement) (the definition of work), the formula for power can also be derived as P = F·v: P=W /t=F*S/t=F*V (this formula is suitable for objects moving in a straight line at a uniform speed)
P in the formula represents power, and the unit is "Watt", referred to as " "Watt", the symbol is W.
W represents work. The unit is "joule", referred to as "joule", and the symbol is J.
t represents time, the unit is "second", and the symbol is "s".
Baidu Encyclopedia - Power
Wind turbine power calculation question
The formula of the power curve is 0.5*A*p*Cp*V^ 3 A is the area swept by the fan blades, P is the air density, V is the wind speed, and Cp is the wind energy utilization rate. Cp is related to wind speed, wind wheel speed, and pitch angle. Generally, for fixed pitch and fixed wind speed conditions, Cp will first increase and then decrease with the speed
If the kinetic energy acting on the blades per minute From 30,000 J to 6,000 J, that is, the kinetic energy acting on the blades per second is reduced from 500 J to 100 J, that is, the kinetic energy is reduced by 400 J. The power generation power is 60 watts, that is, the electrical energy converted per second is 60 J. .The 60 joules of electrical energy come from 400 joules of kinetic energy. The other part of the reduced kinetic energy is used to overcome mechanical friction, etc., which means that the energy conversion efficiency of the wind turbine is 60/400=15%.