Hello, I am experiencing startup errors (with my custom PCB based on EVSPIN32G4 and a 5-polepair outrunner motor (10 kW, 48V, max. 200A DC) . I am driving the motor without any load, just simple startup, power comes from a switching mode power supply with 15 A current limitation.)
To find the cause of the error I was looking at the waveforms during startup for I_ALPHA , I_BETA, I_A and I_B:
The I_B and I_BETA_MEAS waveforms are phaseshifted to each other, and at one point during startup there is a huge spike happening to both. I_A and I_ALPHA_MEAS are exactly the same values, so the waveforms are perfectly laying on top of each other (so you think there is only one waveform). Is this a bug in motor pilot or is it normal that those two are exactly the same?
What might be the cause for the sudden spike? Shortly after this, the motor stops with startup failure. Here I have a graph of I_D, I_Q and ref values of both:
and for more details I include the voltages as well:
I also include the PLL values, in this graph, estimated speed is on the right Y-axis, the other three are on the left Y-axis:
I would be very glad if someone has an idea of what is happening here.
