A Rotor Flux and Speed Observer for Sensorless Single-Phase Induction Motor Applications

Table 1

SPIM data.

Rated values
Voltage		110 V
Frequency		50/60 Hz
Main winding current		2.3 A
Speed		2700 RPM
No. of poles		2
Power		0.25 HP (180 W)
Main winding (𝛽)		Auxiliary winding (𝛼)
𝑅𝑠𝛽	5.2 Ω	𝑅𝑠𝛼	29 Ω
𝑅𝑟𝛽	9.4 Ω	𝑅𝑟𝛼	35.9 Ω
𝐿𝑚𝛽	0.3 H	𝐿𝑚𝛼	0.45 H
𝐿𝑠𝛽	0.3068 H	𝐿𝑠𝛼	0.55 H
𝐿𝑟𝛽	0.3068 H	𝐿𝑟𝛼	0.55 H
𝑁=𝑁𝛽/𝑁𝛼		0.67