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What is the main reason for using speed feedback in a motor positioning control system?

This question is not to solve a particular problem but rather one of principle to understand the main reason a designer would want to include speed feedback in a motor controlled positioning system. ...
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votes
1answer
195 views

Maintaining fixed shaft position of BLDC/PMSM

I intend to control the position and speed of a BLDC motor (still to be selected) using field oriented control (FOC) and an Encoder to determine shaft position and speed. From what I understand from ...
0
votes
1answer
140 views

Speed and position controle of a BLDC motor at the same time

I want to know if it is physically possible for a BLDC motor to be controlled in speed and position at the same time. Let me clarify : while the rotor is spinning (speed control), is it possible to ...