Table 2 The parameter values of motors.

From: Synchronization of coaxial co–rotating tri-exciter with two torsional springs in far-resonance system

Parameters

Motor 1

Motor 2

Motor 3

Parameters

Motor 1

Motor 2

Motor 3

Rated power

0.7 kW

0.7 kW

0.7 kW

Rotor Resistance

0.06Ω

0.06Ω

0.06Ω

Nominal voltage

220 V

220 V

220 V

Stator Inductance

0.0009Ω

0.0009Ω

0.0009Ω

Rated frequency

50 Hz

50 Hz

50 Hz

Rotor Inductance

0.0009Ω

0.0009Ω

0.0009Ω

Rated speed

157 rad/s

157 rad/s

157 rad/s

Mutual inductance

0.03H

0.03H

0.03H

Number of poles

4

4

4

Stator resistance

0.1Ω

0.1Ω

0.1Ω

Damping coefficient of motor shaft

0.02N·m/(rad/s)

0.02N·m/(rad/s)

0.02N·m/(rad/s)