Sliding Mode Control for Bearingless Induction Motor Based on a Novel Load Torque Observer

Table 1

Parameters of the Bearingless Induction Motor (BIM).

Parameters	Torque winding	Suspension winding
Rated power (Kw)	1	0.5
Rated current (A)	2.86	2.86
Stator resistance ()	2.01	1.03
Rotor resistance ()	11.48	0.075
Mutual inductance of stator and rotor (H)	0.15856	0.00932
Stator leakage inductance (H)	0.16310	0.01199
Rotor leakage inductance (H)	0.16778	0.01474
Rotational inertia (kgm^2)	0.00769	0.00769
Rotor mass (kg)	2.85	2.85
Stator inner diameter (mm)	98	98
Core length (mm)	105	105
Pole pairs	1	2