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Table 3 Parameters of the simulated system

From: Fault ride-through capability improvement in a DFIG-based wind turbine using modified ADRC

Parameters

Numerical values

Parameters

Numerical values

Parameters

Numerical values

Frequency of the stator (Hz)

50

Moment of inertia (Kg.m2)

127

Fractional-order

0.9

Rated power of the stator (MW)

2

Damping coefficient

0.001

Rated rotational speed (rpm)

1500

Switching frequency of the converter (kHz)

2

k1d and k1q

0.9

Rated voltage of the stator (V)

690

Sampling period (μs)

50

k2d and k2q

1.1

Rated current of the stator (A)

1760

Gearbox ratio

100

α for falarcsinh (NLSEF and NFESO)

0.001

Rated electromagnetic torque (N.m)

12,732

Turbine blade radius (m)

42

δ for falarcsinh (NLSEF and NFESO)

0.01

Pairs of poles

2

Density of air (kg/m3)

1.225

α for falarctan (NLSEF and NFESO)

0.001

Ratio of the stator turns to the rotor turns

1/3

Capacitance of the DC-link (mF)

80

δ for falarctan (NLSEF and NFESO)

0.002

Rated rotor voltage (V)

2070

Resistance of the grid side filter (μΩ)

20

α for faltanh (NLSEF and NFESO)

0.001

Stator resistance (mΩ)

2.6

Inductance of the grid side filter (μH)

400

δ for faltanh (NLSEF and NFESO)

0.0011

Stator and rotor leakage inductance (mH)

0.087

r (FTD of d-axis)

1.5 \(\times\) 106

α for default fal (NLSEF)

1

Magnetizing inductance (mH)

2.5

r (FTD of q-axis)

5 \(\times\) 107

α for default fal (NFESO)

0.5 & 0.25

Resistance of the rotor referred to the stator (mΩ)

2.9

DC-link voltage referred to the stator (V)

1150

Approximation order of the fractional calculus

1

δ for default fal (NLSEF and NFESO)

0.01