Hello,
I am currently working with MC Workbench 6.3.2.
I have a 2Pole pair motor 4800kV and I want to use the 6 step algorithm and Quasi-Synchronous Rectification.
In this configuration I can only make open loop because :
- When Sensing BEMF during PWM OFF phase --> Speed estimation is incorrect (and very unstable)
- When Sensing BEMF during PWM ON phase --> Speed estimation is correct
I don't understand why the speed estimation in incorrect because the motor is running fine, so it commutes at the right time and the speed estimation should be ok ?
Here is a video to illustrate the issue :
And this is my configuration in open loop :
Any advice ?
Thanks for your help !
Xavier
