Hello,
I am applying D current to my motor while running in speed mode to artificially load down my system to validate system functionality at high current. If I set the D current reference - tempStatorRefCurrentDQ.d to 150A, I get 50A of current on my A, B and C phases. What causes this scale factor? Why is the D current reference not instead adding 150A of current on my A, B and C phases?
Derek,
When you modify the D axis reference, you are adding magnetic flux into the motor. This will change the response of the motor to Q axis current. Without monitoring both values, it is difficult to determine what the current value should be. Is the 50A you are measuring the peak value or rms value?
Adam, what would be the formula to determine how much current injecting D current (flux) should add to my system?
Hey Adam,
I am aware I am adding magnetic flux to the motor. I just was wanting to know if there is any way to determine the amount of current injecting the magnetic flux will add to my system? I am monitoring RMS ABC current.
Hey Adam,
Is there a way to determine the amount of current injecting magnetic flux will add to my system? What is this equation?