T
treez
Guest
Hello,
When a 550W , BLDC is being supplied by a 3 phase voltage source inverter, and it is spinning at 8000rpm with 34V across it, and the inverter is switching at 400Hz with 400us dead time, what does the current waveform look like flowing into the inverter?
(assuming the DC link is 34V, and the inverter is switching at its maximum duty cycle)
Is it a train of trapezoids, separated by the dead time gap, and the peak current of each trapezoid being given by what?, given that the inductance of each winding is 56uH.
none of the web articles actually show the current waveform into the inverter..
https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.168.3186&rep=rep1&type=pdf
When a 550W , BLDC is being supplied by a 3 phase voltage source inverter, and it is spinning at 8000rpm with 34V across it, and the inverter is switching at 400Hz with 400us dead time, what does the current waveform look like flowing into the inverter?
(assuming the DC link is 34V, and the inverter is switching at its maximum duty cycle)
Is it a train of trapezoids, separated by the dead time gap, and the peak current of each trapezoid being given by what?, given that the inductance of each winding is 56uH.
none of the web articles actually show the current waveform into the inverter..
https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.168.3186&rep=rep1&type=pdf