1 / 19

Chapter 8 Switch-Mode DC-AC Inverters

Chapter 8 Switch-Mode DC-AC Inverters. converters for ac motor drives and uninterruptible power supplies. Switch-Mode DC-AC Inverter. Power flow. Block diagram of a motor drive where the power flow is unidirectional. Switch-Mode DC-AC Inverter. Power flow.

robin-hooper
Télécharger la présentation

Chapter 8 Switch-Mode DC-AC Inverters

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 8 Switch-Mode DC-AC Inverters • converters for ac motor drives and uninterruptible power supplies Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  2. Switch-Mode DC-AC Inverter Power flow • Block diagram of a motor drive where the power flow is unidirectional Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  3. Switch-Mode DC-AC Inverter Power flow • Block diagram of a motor drive where the power flow can be bi-directional Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  4. Switch-Mode DC-AC Inverter • Four quadrants of operation Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  5. Full-Bridge DC-DC Converter Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  6. Half-bridge DC-AC Inverter • Half-bridge inverter • (One leg of full bridge converter) Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  7. Square-Wave Mode of Operation • Harmonics are of the fundamental frequency Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  8. Effect of Blanking Time • Results in nonlinearity Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  9. Effect of Blanking Time • Effect on the output voltage Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  10. Synthesis of a Sinusoidal Output by PWM Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  11. Synthesis of a Sinusoidal Output by PWM (2) 1 Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  12. Half-Bridge DC-AC Inverter • Capacitors provide the mid-point Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  13. Full-Bridge DC-AC Inverter Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  14. Full-Bridge DC-AC Inverter Bipolar Voltage switching Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  15. Full-Bridge DC-AC Inverter Unipolar Voltage Switching Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  16. Full-Bridge DC-AC Inverter Unipolar Voltage Switching 1 • Harmonic components around the switching frequency are absent Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  17. Sinusoidal Synthesis by Voltage Shift Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  18. Programmed Harmonic Elimination • Angles based on the desired output • IC circuit or microcontroller required Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

  19. Summary of DC-AC Inverters PWM square-wave Chapter 8 Switch-Mode DC- Sinusoidal AC Inverters

More Related