j'ai un projet de réalisation un variateur de vitesse d'un moteur asynchrone
moteur asynchrone 220/380V
0.75KW
COS &= 0.8
vitesse = 1350 tr/min
f = 50hz
(6 IGBT) j'utilise l'arduino mega 2560 pour le commande de module IGBT
كود:
int PhaseA1 = 5; // the number of the pin controlling the High side of Phase 1
int PhaseA2 = 6; // the number of the pin controlling the Low side of Phase 1
int PhaseB1 = 7; // the number of the pin controlling the High side of Phase 2
int PhaseB2 = 8; // the number of the pin controlling the Low side of Phase 2
int PhaseC1 = 9; // the number of the pin controlling the High side of Phase 3
int PhaseC2 = 10; // the number of the pin controlling the Low side of Phase 3
int ledStateA1 = LOW; // ledState used to set whether that MOSFET is on or off
int ledStateA2 = LOW; // LOW side MOSFETS are on with a HIGH
int ledStateB1 = HIGH; // HIGH side MOSFETS are on with a LOW
int ledStateB2 = HIGH; // At any given time 2 MOSFETS should be ON, 4 OFF
int ledStateC1 = LOW;
int ledStateC2 = LOW;
long previousMillis = 0; // will store last time a cycle finished was updated
int sensorPin = A0; // Pin which reads output from the switch controlling phase rotation
int sensorValue = 0; // Initial sensor value
long wavelength = 100; // wavelength of the output
void setup() {
// set the digital pin as output:
pinMode(PhaseA1, OUTPUT);
pinMode(PhaseA2, OUTPUT);
pinMode(PhaseB1, OUTPUT);
pinMode(PhaseB2, OUTPUT);
pinMode(PhaseC1, OUTPUT);
pinMode(PhaseC2, OUTPUT);
}
void loop()
{
unsigned long currentMillis = millis();
sensorValue = analogRead(sensorPin);
if(sensorValue>500){
PhaseA1 = 5; // the number of the LED pin
PhaseA2 = 6;
PhaseB1 = 7;
PhaseB2 = 8;
}
else{
PhaseA1 = 7; // the number of the LED pin
PhaseA2 = 8;
PhaseB1 = 5;
PhaseB2 = 6;
}
int sensorValueMap =map(sensorValue, 150, 850, 1, 11); // maps sensorValues into 11 different cases.
// If the potentiometer did not have resistors
// than the second two numbers would be 0 and 1024
switch(sensorValueMap){ // switches wavelength depending on value sent by potentiometer.
case 1:
wavelength = 15; // if the sensorValue is in case 1, than the wavelength is 15ms.
break;
case 2:
wavelength = 30; // if the sensorValue is in case 2, than the wavelength is 30ms...
break;
case 3:
wavelength = 100;
break;
case 4:
wavelength = 500;
break;
case 5:
wavelength = 1000;
break;
case 6:
wavelength = 5000;
break;
case 7:
wavelength = 1000;
break;
case 8:
wavelength = 500;
break;
case 9:
wavelength = 100;
break;
case 10:
wavelength = 30;
break;
case 11:
wavelength = 15;
break;
}
unsigned long elapsed = currentMillis - previousMillis; // elapsed is the time since the end of the last cycle
int pulses =map(elapsed, 0, 2*wavelength, 0, 12); // maps the elapsed time into 13 possible cases
switch (pulses){
case 0:
ledStateA1=HIGH; // Sets the state for the A MOSFETs so the output from the inverter follows the correct waveform
ledStateA2=LOW; // Case 0 is time = 0
ledStateB1=HIGH; // From time=0 to time=wavelength/12 phase A is 0, phase B is Negative, phase C is Positive
ledStateB2=HIGH;
ledStateC1=LOW;
ledStateC2=LOW;
digitalWrite(PhaseA1, ledStateA1);
digitalWrite(PhaseA2, ledStateA2);
digitalWrite(PhaseB1, ledStateB1);
digitalWrite(PhaseB2, ledStateB2);
digitalWrite(PhaseC1, ledStateC1);
digitalWrite(PhaseC2, ledStateC2);
break;
case 1: // Case 1 is time = wavelength/12
ledStateA1=LOW; // Phase A is switching to Pos
ledStateA2=LOW;
digitalWrite(PhaseA1, ledStateA1);
digitalWrite(PhaseA2, ledStateA2);
ledStateC1=HIGH; // Phase C is switching to 0
ledStateC2=LOW;
digitalWrite(PhaseC1, ledStateC1);
digitalWrite(PhaseC2, ledStateC2);
break;
case 3: // Case 3 is time = 3*wavelength/12
ledStateB1=HIGH; // phase B is switching to 0
ledStateB2=LOW;
digitalWrite(PhaseB1, ledStateB1);
digitalWrite(PhaseB2, ledStateB2);
ledStateC1=HIGH; //Phase C is switching to negative
ledStateC2=HIGH;
digitalWrite(PhaseC1, ledStateC1);
digitalWrite(PhaseC2, ledStateC2);
break;
case 5: // Case 5 is time = 5*wavelength/12
ledStateB1=LOW; // Phase B is switching to positive
ledStateB2=LOW;
digitalWrite(PhaseB1, ledStateB1);
digitalWrite(PhaseB2, ledStateB2);
ledStateA1=HIGH; // Phase A is switching to 0
ledStateA2=LOW;
digitalWrite(PhaseA1, ledStateA1);
digitalWrite(PhaseA2, ledStateA2);
break;
case 7: // Case 7 is time = 7*wavelength/12
ledStateA1=HIGH; // Phase A is switching to negative
ledStateA2=HIGH;
digitalWrite(PhaseA1, ledStateA1);
digitalWrite(PhaseA2, ledStateA2);
ledStateC1=HIGH; // Phase C is switching to 0
ledStateC2=LOW;
digitalWrite(PhaseC1, ledStateC1);
digitalWrite(PhaseC2, ledStateC2);
break;
case 9: // Case 9 is time = 9*wavelength/12
ledStateC1=LOW; // phase C is switching to positive
ledStateC2=LOW;
digitalWrite(PhaseC1, ledStateC1);
digitalWrite(PhaseC2, ledStateC2);
ledStateB1=HIGH; // phase B is switching to negative
ledStateB2=HIGH;
digitalWrite(PhaseB1, ledStateB1);
digitalWrite(PhaseB2, ledStateB2);
break;
case 11: // Case 11 is time = 11*wavelength/12
ledStateA1=HIGH; //Phase A is switching to 0
ledStateA2=LOW;
digitalWrite(PhaseA1, ledStateA1);
digitalWrite(PhaseA2, ledStateA2);
ledStateB1=HIGH; // Phase B is switching to negative
ledStateB2=HIGH;
digitalWrite(PhaseB1, ledStateB1);
digitalWrite(PhaseB2, ledStateB2);
break;
case 12: // Case 12 is time = 12*wavelength/12 or the end of the program
previousMillis = currentMillis;
break;
}
if(pulses>12){
previousMillis = currentMillis; // prevents program from crashing if it misses case 12
}
}
svp aide pour commander le moteur de sens
Control moteur asynchrone with arduino
