Electromagnetic actuators JASS 2006 Konev Victor Course #5 St-Petersburg

2 Content Fundamental definitions DC engines AC engines Asynchronous engines Synchronous engines Step-by-step engines AC converter-fed engines Concluion

3 What the electromagnetic drive is ? Electromechanical device intended for electrification and automation of working processes and consisting of converters, electromagnetic engines, transfer and operating devices is called an electromagnetic drive.

4 Electromagnetic drives Types of electromagnetic drives: Group Single Multiimpellent

5 Group drives

6 Drives characteristics Group: low EFFICIENCY; irrational use of premises; high traumatism.

7 Single drives

8 Drives characteristics Single: too high capacity of the engine that’s it has low EFFICIENCY; complex kinematics of the machine tool; installation of connecting couplings is required.

9 Multiimpellent drives

10 Drives characteristics Multiipellent: has elementary kinematic circuits; the engine is built in directly into the working body; the maximal EFFICIENCY; has conditions for independent optimum control of the working body.

11 Function chart of a electromagnetic drive

12 Mechanical and electromechanical characteristics

13 Mechanical characteristic and slop

14 Types of electromagnetic engines DC vs AC

15 Direct current engines

16 Alternative current engines Asynchronous electric motors

17 Asynchronous electric motors

18 Operation principle of the asynchronous engine

19 Sliding

20 The equation of the asynchronous engine mechanical characteristic

21 The equation of the asynchronous engine mechanical characteristic

22 The equation of the asynchronous engine mechanical characteristic

23 The equation of the asynchronous engine mechanical characteristic

24 The mechanical characteristic of the asynchronous engine

25 Voltage fluctuation influence

26 Alternative current engines Synchronous electric motors

27 Synchronous electric motors

28 Mechanical characteristic of synchronous engine

29 Synchronous engines of special execution. Synchronous engines with constant magnets.

30 Synchronous engines of special execution. Synchronous jet engines.

31 How rise up efficiency?

32 Synchronous engines of special execution. Slow-moving (geared) synchronous jet engine.

33 Synchronous engines of special execution. Slow-moving (geared) synchronous jet engine.

34 Synchronous engines of special execution. Synchronous hysteresis engine.

35 Step-by-step engines.

36 Step-by-step engines.

37 AC converter-fed engines.

38 Conclusion Also necessary to know: Engines modes; Influence of an engine parameters on its characteristics; Special schemes of the engine inclusion; Etc.

39 Electromagnetic drives Thank you for your attention!

40 Electromagnetic drives Thank you for your attention! Storm of applause!)

41 Electromagnetic drives Thank you for your attention! Storm of applause!) Oh yeah, have you any question?