Tool/software: Code Composer Studio
I am planning to do PMSM control for electric vehicle application using 28379D DSP. This is not specific to the controller but control of PMSM itself.
What I understand is that the incremental encoder can give the relative position and not absolute position and every time during the start-up of motor an initial rotor alignment is needed. This means that the vehicle itself has to move for the initial alignment.
Then comes the relevance of absolute encoder that can give the absolute position during start itself. But I see that they communicate with the controller through different communication protocols and QEI can't be really used for that.
1, Is my understanding correct?
2. If yes, could anyone suggest some absolute encoder makes/ part number?