HSMO high-order synovial membrane observer/QPLL/EMF/MBD/discrete modeling?PMSM matlab simulink

HSMO high-order sliding film observer
Compared with the traditional sliding film observer, the high-order sliding film observer has the observation of EMF (extended back electromotive force). Since it observes the derivative of EMF, it has stronger robustness.
HSMO: used to estimate EMF, because EMF contains the position and speed information of the motor rotor;
QPLL: used to detect and track the input EMF and the rotor position and speed, so as to keep the two synchronized, thereby improving the accuracy of rotor position observation.
(1) The model is all discrete modeling, and the development board has been integrated and tested to facilitate MBD code generation;
(2) The observer can track the actual angle very well, and the tracking effect is good.
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