The document discusses different types of inverters classified based on number of phases, DC source, commutation method, AC wave shape, output voltage levels, and topologies like center-tap, half-bridge, full-bridge, and three-phase inverters. It also covers pulse width modulation techniques like regular sampling, programmed PWM, space vector PWM, and current-type inverters which are commonly used in applications like AC motor drives, UPS systems, and solar inverters. Current-type inverters are gaining popularity for medium voltage applications due to advantages like sinusoidal currents and short-circuit protection.

1. Inverter (Konverter DC – AC) Pekik Argo Dahono

2. Penggunaan Inverter Pengendalian motor ac UPS Catu daya ac Ballast elektronik Microwave heating Static VAR generators FACTS (Flexible AC Transmission System) Filter daya aktif Penyearah

3. Variable Speed Drives

4. Uninterruptibe AC Power Supplies

5. Basic Concepts

6. Properties of Ideal Inverters DC input is free of ripple AC output is sinusoidal or has a controllable waveshape

7. Klasifikasi Inverter 1) Menurut jumlah fasa - satu-fasa - banyak fasa 2) Menurut sumber dc: - sumber tegangan - sumber arus 3) Menurut metoda komutasi: - komutasi paksa - komutasi natural 4) Menurut metoda pengaturan gelombang ac: - gelombang persegi - pulse amplitude modulation (PAM) - pulse width modulation (PWM) 5) Menurut jumlah level gelombang keluaran: - dua level - banyak level

8. Inverter Satu-Fasa

9. Inverter Center-Tap

10. Inverter Center-Tap

11. Inverter Center-Tap

12. Analisis Tegangan Output Inverter Center-Tap

13. Inverter Center-Tap Sederhana Komponen minimum Harus pakai trafo Cocok untuk daya rendah (< 1 kW) Cocok untuk tegangan dc yang rendah Pengaturan tegangan dilakukan dengan menggunakan trafo ferroresonance.

14. Half-Bridge Inverter

15. Analisis Tegangan Output Inverter Half-Bridge

16. Inverter Thyristor

17. Inverter Thyristor

18. Inverter Full-Bridge

19. Inverter Full-Bridge

20. Inverter Tiga-Fasa

21. Inverter Tiga-Fasa

22. Inverter Tiga-Fasa

23. Simulation

24. Simulated Result

25. Teknik PWM Sampling Based PWM: Natural sampling (Carrier Based) Regular sampling 2. Programmed PWM: Eliminated Harmonics Minimum Harmonics

26. Teknik PWM If f c /f r integer, the technique is called synchronous otherwise asynchronous

27. Regular Sampling

28. Simulation

29. Simulation Results

30. Analisis Tegangan Keluaran nverter PWM Satu-Fasa

31. Simulation result under nonsinusoidal reference

32. Analisis Tegangan keluaran Maximum peak output voltage is E d /2. This value is less than the fundamental component of square-wave output voltage. The output current waveform is almost sinusoidal when the switching frequency is high. Because the switching frequency is high, the switching losses are also high.

33. Analisis Riak

34. Analisis Riak

35. Programmed PWM

36. Teknik PWM Untuk Inverter Satu-Fasa Full-Bridge

37. Three-Phase PWM Inverter

38. Teknik PWM Inverter Tiga-Fasa

39. Simulation

40. Simulation Results

41. Teknik PWM Inverter Tiga-Fasa

42. Teknik PWM Inverter Tiga-Fasa

43. Simulation Result

44. Switching Function Concept

45. Current-Type Inverters Current-Type Inverter Voltage-Type Inverter

46. Autosequential Commutation Current-Source Inverters

47. Current-Source Inverter with Individual Commutation

48. Current-Source Inverter with Fourth-Leg Commutation

49. Duality Between Voltage-Type and Current-Type Inverters

50. Duality Between Voltage-Type and Current-Type Inverters

51. Current-Type Inverters

52. Current-Type Inverters At present, voltage-type inverters are more popular than current-type inverters. Current-type inverters are commonly used as PWM rectifiers. Advances on superconductor will increase the use of current-type inverters. At present, several manufacturers introduce reverse-blocking devices on one module. Current-type inverters are introduced for medium voltage ac drives because the input and output currents are almost sinusoidal, inherently four-quadrants, and short-circuit proof.

53. Space-Vector PWM

54. Space Vector PWM

55. Space Vector PWM

56. Two-Level Inverters High-voltage applications need high-voltage switching devices. Series connection of switching devices are difficult to control. Output waveforms can only be improved at the expense of switching losses. High-voltage applications may need bulky and expensive transformers.

57. Diode clamped multilevel inverters Three-level inverter Five-level inverter

58. Flying capacitor inverters Three level inverters Five level

59. Cascade connection of single-phase inverters Three level inverter Five level inverter