3 Phase 180 Degree Mode Inverter using matlab simulink - Matlab Simulink for E & T

## Sunday, July 12, 2020 180 Degree Conduction Mode Inverter using matlab simulink

# Three-Phase 180 Degree Conduction Mode Inverter # A three phase 180 degree conduction mode bridge type inverter model built up of six MOSFETs, 450 V DC input Supply , Star connected 300 ohm load, six pulse generator,. In this inverter, each MOSFET conducts for 180 degree and hence it is known as three phase VSI.

#### For best laptop for Matlab software-  https://amzn.to/39QeZ9dCamera- https://amzn.to/39KBi02Professional tripod- https://amzn.to/39Jg96w Angle (Degree) ON Switches OFF Switches 0°-60° M1, M5, M6 M2, M3, M4 60°-120° M1, M2, M6 M3, M4, M5 120°-180° M1, M2, M3 M4, M5, M6 180°-240° M2, M3, M4 M1, M5, M6 240°-300° M3, M4, M5 M1, M2, M6 300°-360° M4, M5, M6 M1, M2, M3 A period of 0.02 sec is taken so that the output voltage waveform is of frequency 50 Hz (T=1/f, i.e. 1/50=0.02). The pulse width of 50% is taken so that the MOSFET,  M1 conducts from 0 to 0.01 sec .i.e. 0 to 180 degree , as 0 to 0.02 sec is equivalent to 0 to 360 degree , the delay of 0.01 sec means 180 degree delay in electrical degree. Similarly the phase delay

for    G2 it is 0.01/3 sec,
for    G3 it is 0.02/3 sec,
for    G4 it is 0.01 sec.
for    G5 it is 0.04/3, and

# The gate pulse of switches M1, M3, M5 are shown in fig . it can observed from these gate pulse that each switch conducts for 0.01 sec, i.e. 180 degree.

#### Gate Pulse of M1, M2 and M3The output voltage waveform of the three phases obtained after simulation the model is shown In  figure  . it can observer from figure that the first phase has phase angle of 0 degree , the second phase – 120 degree and third phase is 240 degree.

## FFT Analysis

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# 3 Phase 120 Degree Mode Inverter using matlab simulink

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