Hi,
I’m using the demo model on inverter fed PMSM as the base to build out a different model, but I’m unsure how to operate the machine as a generator? I have an operating point at a certain high speed and for a certain power range (the torque input will vary) so when I give a controlled torque source, my speed seems extremely low (~30 rad/s) and no matter what machine parameters I change I’m not able to get it close to the speeds I’m trying to reach. Does it come down to a matter of tuning or is there something more basic I’m missing?
In another instance, I’m trying a simpler open-loop implementation of generating the control signals with a constant torque source. I’m attaching a file of the control loop (OL.png). I have 3 phase reference waveforms using which I generate SVPWM inputs to the switches. For a synchronous machine, shouldn’t the machine rotate at a speed of (120*Fo/P) where I can control the speed by changing Fo? However, again I’m not seeing the speeds that I expect.
Thanks
pmsm_updated.plecs (38.8 KB)