SIMULATION OF SIMPLE THREE PHASE INVERTER

SIMPLE THREE PHASE INVERTER:


FIND BLOCKS FOR BELOW LISTED COMPONENTS FROM SIMULINK LIBRARY,


COMPONENTS:

1) POWERGUI

2) IGBT OR MOSFET -6

3) PULSE GENERATOR -6

4) DC VOLTAGE SOURCE

5) THREE PHASE Y RESISTIVE LOAD

6) THREE PHASE V-I MEASUREMENT

7) SCOPE


CONNECT ALL COMPONENT AS SHOWN IN VIDEO.


DC VOLTAGE SOURCE: 200V

RESISTIVE LOAD: 50 OHM

PULSE GENERATOR:

Period    : 2E-3 MEANS 20mS FOR 50Hz SIGNAL.

Pulse Width: 50%

Phase delay: FOR IGBT-1: 0

FOR IGBT-2: 2e-3*(60/360)

FOR IGBT-3: 2e-3*(120/360)

FOR IGBT-4: 2e-3*(180/360)

FOR IGBT-5: 2e-3*(240/360)

FOR IGBT-6: 2e-3*(300/360)


HERE WE CAM SEE THAT TIME REQUIRED FOR ONE CYCLE IS 20E-3 MEANS 20 mS AND THIS IS FOR 50Hz SIGNAL.

SO HERE WE HAVE 50Hz POWER OUTPUT.

BUT WE THERE ARE SOME PROBLEMS.


PROBLEMS:

1) YOU CAN NOT USE OUTPUT OF THIS INVERTER DIRECTLY BECAUSE

THIS IS NOT PURE SINE WAVE OUTPUT. 

FOR SINE WAVE OUTPUT WE REQUIRE A FILTER, WE WILL DESIGN

A FILTER IN NEXT VIDEO.


2) IN THIS INVERTER, OUTPUT IS FIXED. IF YOU WANT VARIABLE 

OUTPUT, THEN YOU HAVE TO USE CONTROL CIRCUIT.



WATCH UPCOMING VIDEO TO SOLVE THIS PROBLEMS.