Three-Phase VSI With 120° & 180° Conduction Mode

COMPONENTS

DC Source

IGBT

Gate Pulse

Resistor

Voltmeter

Ground

OBSERVATION TABLE

120° Conduction Mode

S.No.	VP_rms (V)	VL_rms (V)

OBSERVATION TABLE

180° Conduction Mode

S.No.	VP_rms (V)	VL_rms (V)

3

GP1

4

5

6

IGBT1

7

GP3

8

9

10

IGBT3

11

GP5

12

13

14

IGBT5

1

2

DC

15

GP4

16

17

18

IGBT4

19

GP6

20

21

22

IGBT6

23

GP2

24

25

26

IGBT2

27

28

VRB

29

30

VRY

31

32

VYB

33

34

VR

35

36

RR

37

38

VY

39

40

RY

41

42

VB

43

44

RB

45

GND

STEP 1: Drag and drop the components in the workspace to create the circuit.

Nos of required components:

DC Source – 1, IGBT – 6, Gate Pulse - 6, Resistor - 3, Voltmeter - 6, Ground - 1

STEP 2: Make the connections as per the instructions given below:

(a) (01-04, 03-05, 06-16, 04-08, 07-09, 10-20, 08-12)

(b) (11-13, 14-24, 02-18, 15-17, 18-22, 19-21, 22-26)

(c) (23-25, 16-35, 20-39, 24-43, 35-27, 28-43, 35-29)

(d) (30-39, 39-31, 32-43, 33-35, 34-45, 36-45, 37-39)

(e) (41-43, 38-45, 40-45, 42-45, 44-45)

Note: Click on the wire to delete the connection.

STEP 3: Click on the CHECK button to check the connections.

Note: Right click on the component to open the dialog box to edit the properties of the component.

STEP 4: For 120° Conduction mode Input the values for all the required components (DC Source and Gate Pulses) and the waveform will get plot automatically.

GP1 - 0° to 120°, GP3 - 120° to 240°, GP5 - 240° to 360°, GP4 - 180° to 300°, GP6 - 300° to 420°, GP2 - 60° to 180°.

STEP 5: Now, Click on the ADD button to insert the reading into the observation table.

STEP 6: Now, you can input different values as per your requirement to get the desired waveform.

STEP 7: Repeat Step 5 to again insert the reading into the table and now repeat Steps 6 to 7 to take more readings.

STEP 8: For 180° Conduction mode Input the values for all the required components (DC Source and GatePulses) and the waveform will get plot automatically.

GP1 - 0° to 180°, GP3 - 120° to 300°, GP5 - 240° to 420°, GP4 - 180° to 360°, GP6 - 300° to 480°, GP2 - 60° to 240°.

STEP 9: Now, Repeat Steps 5 to 7.

STEP 10: Click on the PRINT button to take out the print of the webpage.

STEP 11: Click on the RESET button to reload the webpage.