1 Institute of Mechatronics and Information Systems Induction (asynchronous) machine

2 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Rotor (armature) types

3 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Three phase magnetic field excitation

4 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Rotating magnetic field

5 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Ferro-magnetic core cross-section (lamination)

6 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Stator (field) winding

7 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Three phase magnetic field excitation

8 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Synchronous speed: Rotor speed: Slip:

9 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Equivalent circuit

10 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Electromagnetic torque:

11 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Electromagnetic torque:

12 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Basic characteristics

13 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Simplified equations Electromagnetic torque: Breakdown (maximal) torque: Breakdown slip:

14 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Simplified equations Electromagnetic torque, Kloss equation: therefore starting torque: Overload coefficient:

15 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Load torque versus electromagnetic torque

16 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Start-up current speed

17 Institute of Mechatronics and Information Systems Induction slip ring machine Modification of output characteristics

18 Institute of Mechatronics and Information Systems Induction slip ring machine Modification of output characteristics

19 Institute of Mechatronics and Information Systems Induction slip ring machine Modification of output characteristics brakemotorgenerator

20 Institute of Mechatronics and Information Systems Induction squirrel cage machine

21 Institute of Mechatronics and Information Systems Induction squirrel cage machine

22 Institute of Mechatronics and Information Systems Induction squirrel cage machine Modification of output characteristics Dahlander winding setup

23 Institute of Mechatronics and Information Systems Induction squirrel cage machine Modification of output characteristics Frequency and voltage converter rectifier inverterDC link

24 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Simplified equations Electromagnetic torque: Breakdown (maximal) torque: Breakdown slip:

25 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Modification of output characteristics Electromagnetic dependencies: Breakdown (maximal) torque: Breakdown slip:

26 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Modification of output characteristics Varying frequency and voltage – constant B m

27 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Modification of output characteristics Varying frequency and constant voltage

28 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Modification of output characteristics Control limitations

29 Institute of Mechatronics and Information Systems Induction (asynchronous) machine Losses and efficiency (Sankey diagram)

30 Institute of Mechatronics and Information Systems Thank You for Your attention