3 level Diode Clamped Multilevel Inverter based Induction Motor Drive

Stepped Wave Logic (simulink Model)

Stepped Wave output


 Phase Voltage


SPWM logic (Simulink Model)



SPWM output

  Phase Voltage



 Line Voltage


ADRUINO code for stepped wave logic

void setup()
{
  pinMode(2,OUTPUT);
  pinMode(3,OUTPUT);
  pinMode(4,OUTPUT);
  pinMode(5,OUTPUT);
  pinMode(6,OUTPUT);
  pinMode(7,OUTPUT);
  pinMode(8,OUTPUT);
  pinMode(9,OUTPUT);
  pinMode(10,OUTPUT);
  pinMode(11,OUTPUT);
  pinMode(12,OUTPUT);
  pinMode(13,OUTPUT);
  Serial.begin(9600);
}
void loop()
{
  digitalWrite(2,HIGH);
  digitalWrite(3,HIGH);
  digitalWrite(8,HIGH);
  digitalWrite(9,HIGH);
  digitalWrite(10,HIGH);
  digitalWrite(11,HIGH);
  delayMicroseconds(3333);
  digitalWrite(2,LOW);
  digitalWrite(3,LOW);
  digitalWrite(8,LOW);
  digitalWrite(9,LOW);
  digitalWrite(10,LOW);
  digitalWrite(11,LOW);

  digitalWrite(2,HIGH);
  digitalWrite(3,HIGH);
  digitalWrite(8,HIGH);
  digitalWrite(9,HIGH);
  digitalWrite(12,HIGH);
  digitalWrite(13,HIGH);
  delayMicroseconds(3333);
  digitalWrite(2,LOW);
  digitalWrite(3,LOW);
  digitalWrite(8,LOW);
  digitalWrite(9,LOW);
  digitalWrite(12,LOW);
  digitalWrite(13,LOW);

  digitalWrite(2,HIGH);
  digitalWrite(3,HIGH);
  digitalWrite(6,HIGH);
  digitalWrite(7,HIGH);
  digitalWrite(12,HIGH);
  digitalWrite(13,HIGH);
  delayMicroseconds(3334);
  digitalWrite(2,LOW);
  digitalWrite(3,LOW);
  digitalWrite(6,LOW);
  digitalWrite(7,LOW);
  digitalWrite(12,LOW);
  digitalWrite(13,LOW);

  digitalWrite(4,HIGH);
  digitalWrite(5,HIGH);
  digitalWrite(6,HIGH);
  digitalWrite(7,HIGH);
  digitalWrite(12,HIGH);
  digitalWrite(13,HIGH);
  delayMicroseconds(3333);
  digitalWrite(4,LOW);
  digitalWrite(5,LOW);
  digitalWrite(6,LOW);
  digitalWrite(7,LOW);
  digitalWrite(12,LOW);
  digitalWrite(13,LOW);

  digitalWrite(4,HIGH);
  digitalWrite(5,HIGH);
  digitalWrite(6,HIGH);
  digitalWrite(7,HIGH);
  digitalWrite(10,HIGH);
  digitalWrite(11,HIGH);
  delayMicroseconds(3333);
  digitalWrite(4,LOW);
  digitalWrite(5,LOW);
  digitalWrite(6,LOW);
  digitalWrite(7,LOW);
  digitalWrite(10,LOW);
  digitalWrite(11,LOW);


  digitalWrite(4,HIGH);
  digitalWrite(5,HIGH);
  digitalWrite(8,HIGH);
  digitalWrite(9,HIGH);
  digitalWrite(10,HIGH);
  digitalWrite(11,HIGH);
  delayMicroseconds(3334);
  digitalWrite(4,LOW);
  digitalWrite(5,LOW);
  digitalWrite(8,LOW);
  digitalWrite(9,LOW);
  digitalWrite(10,LOW);
  digitalWrite(11,LOW);
}