Three phase inverters l.jpg
This presentation is the property of its rightful owner.
Sponsored Links
1 / 27

Three-Phase Inverters PowerPoint PPT Presentation


  • 60 Views
  • Uploaded on
  • Presentation posted in: General

Three-Phase Inverters. Consider three single-phase inverters in parallel, driven 120 ° apart. Three-Phase Inverter (continued). Three single-phase full bridge inverters. 12 transistors, 12 diodes, 3 transformers Could it be simpler?. Alternative (Preferred) Configuration.

Download Presentation

Three-Phase 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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Three phase inverters l.jpg

Three-Phase Inverters

Consider three single-phase inverters in parallel, driven 120° apart.


Three phase inverter continued l.jpg

Three-Phase Inverter (continued)

Three single-phase full bridge inverters

12 transistors, 12 diodes, 3 transformers

Could it be simpler?


Alternative preferred configuration l.jpg

Alternative (Preferred) Configuration

6 transistors, 6 diodes conduction for 120° or 180°


180 conduction l.jpg

180° Conduction

  • Three transistors ON at a time


Summary table l.jpg

Summary Table


Waveforms for 180 conduction l.jpg

Waveforms for 180 Conduction


Phase voltages for 180 conduction l.jpg

Phase Voltages for 180 Conduction


Waveforms for 180 conduction8 l.jpg

Waveforms for 180 Conduction


Summary table9 l.jpg

Summary Table


Mode 1 operation l.jpg

Mode 1 Operation


Mode 1 operation11 l.jpg

Mode 1 Operation

Q1, Q5, Q6 conduct


Summary table12 l.jpg

Summary Table


Mode 2 operation l.jpg

Mode 2 Operation


Mode 2 operation14 l.jpg

Mode 2 Operation

Q1, Q2, Q6 conduct


Summary table15 l.jpg

Summary Table


Mode 3 operation l.jpg

Mode 3 Operation


Mode 3 operation17 l.jpg

Mode 3 Operation

Q1, Q2, Q3 conduct


Phase voltages for 180 conduction18 l.jpg

Phase Voltages for 180 Conduction


Fourier series for line to line voltages l.jpg

Fourier Series for Line-to-Line Voltages


For the other line to line voltages l.jpg

For the other Line-to-Line Voltages


Line to line rms voltage l.jpg

Line-to-Line rms Voltage


Rms value of the nth component l.jpg

rms value of the nth Component

Fundamental Component


Line to neutral voltages l.jpg

Line-to-Neutral Voltages


Phase voltages y connected load l.jpg

Phase Voltages (Y-connected load)


Line current for an rl load l.jpg

Line Current for an RL load


Dc supply current l.jpg

DC Supply Current

IL=√3Io is the rms load line current

Vo1= fundamental rms output line voltage

Io is the rms load phase current

Θ1 = the load impedance angle at the fundamental frequency


Three phase inverter with rl load l.jpg

Three-Phase Inverter with RL Load


  • Login