The rated power of the wind power generator is 100W, the rated wind speed is 12, and the actual oper

The formula for wind power is: pv3/2, air density times the cube of wind speed and divided by 2. (But this is not actually the case, because the wind turbine itself cannot capture all the wind energy. Each wind turbine manufacturer will have a wind energy curve. Thanks to this wind energy curve, we can find the power supplied corresponding to the determined wind speed.

The formula for wind speed changing with height:

Wind shear index a=[lg(v2/v1)]/[lg(z2/z1)]

V2 is the height at Z2 Wind speed

V1 is the wind speed at height Z1

The calculation is like this

First of all, you need to know the four data of V2, V1, Z2 and Z1, then find a, then use a=[lg(V1/V3)]/[lg(Z1/Z3)] to find wind speed V3 at height Z3. Of course, this formula does not calculate the actual V3 but only the theoretical value.

The largest is 5MW in Denmark and one in China. Generally, 2 MW, 1.5 MW or less 0.8 MW are used in China.

The common models currently used in wind farms are all 1.5 MW units, that is, the full power of the wind turbine is 1,500 kW. This 1500 is the power output. It is not necessary to calculate the power factor. But now, wind turbines all have some breeder generation capabilities, and some models can even generate up to 1,700 KW. However, given the particularity of wind farms;

The power changes quickly depending on the changes in the wind, therefore. full power is not often the case. Current wind farm planning generally considers that a phase does not exceed 50 MW, so a single 1.5 MW wind turbine with 33 units has a total power of 49.5 MW.

Detailed information:

Power calculation formulaelectrical: P=W/t=UI;

In a purely resistive circuit, according to Ohm's law U=IR replaces P=UI and we can also obtain: P=I2R=(U2)/R

In dynamic: power Calculation formula: 1.P=W/t (average power) 2.P=FV; P=Fvcosα (instantaneous power)

Because W=F (force F) × S (displacement s) (work (definition formula), so the power formula can also be derived as P= F v:

P in the formula represents power, the unit is "Watt", called "Watt", and the symbol is W.

W represents work The unit is "joule", called "joule", and the symbol is J.

t represents time, the unit is “second” and the symbol is “s”

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