Parameters

Description

Value

Unit

k g e a r

Gearbox ratio

100

J g e n

Generator inertia

90

kg・m2

J w t r

Wind turbine rotor inertia

40e5

kg・m2

K s h a f t

Shaft stiffness

90e6

Nm/rad

D s h a f t

Shaft damping coefficient

60e4

Nm・s/rad

P p

The Number of machine pole-pair

2

L m

Magnetizing (mutual) inductance

2.1346e-3

H

L l s

Stator leakage inductance

0.0649e-3

H

L l r

Rotor leakage inductance

0.0649e-3

H

L s

Stator self-inductance

L m + L l s

H

L r

Rotor self-inductance

L m + L l r

H

σ

The total leakage coefficient

1 L m 2 / ( L s L r )

R s

Stator winding resistance

1.102e-3

Ω

R r

Rotor winding resistance

1.497e-3

Ω

The rated mechanical power

2

MW

The rated speed of the generator

1500

rpm

ρ

Air density

1.225

kg・m3

R t

The radius of wind turbine rotor

40

m

The rated wind speed

11.2

m/s

V m

The mean wind speed

10

m/s

Cut-in wind speed

3.5

m/s

Cut-out wind speed

25

m/s