Inverse System Analysis and Modeling of Bearingless Induction Motor and Its Combined Control Strategy

Table 1

Parameters of bearingless induction prototype motor.

Parameters	Description	Value
	Stator inner diameter (mm)	62
	Effective core length (mm)	82
	Air gap of auxiliary bearing (mm)	0.2
	Power of motor (kW)	2.2
	Stator winding resistance (Ω)	1.6
	Rotor winding resistance (Ω)	1.423
	Leakage inductance of torque windings (H)	0.0043
	Leakage inductance of rotor windings of torque system (H)	0.0043
	Mutual inductance of torque system (H)	0.0859
	Rotation inertia of motor (kg·m^2)	0.024
	Suspension stator winding resistance	2.7
	Leakage inductance of suspension stator windings (H)	0.00398
	Mutual inductance of suspension system (H)	0.230