Nonlinear flux linkage non-inductive algorithm (Flux observer + PLL)/matlab simulink

Nonlinear flux sensorless algorithm (Flux observer + PLL);
flux: calculates the motor flux, the purpose is to make the estimated flux converge to the actual flux;
pll: through the estimated flux calculation and pi adjustment, the estimated angle tracks the actual angle.
Model highlights:
(1) Provides the derivation of the nonlinear sensorless flux algorithm;
(2) Experience in debugging the flux observer, the simulation is consistent with the actual motor control, and the algorithm has been integrated and tested in the development version;
(3) The model adopts all discrete modeling, and the model can be directly generated. The actual motor control program based on MBD is provided;
(4) The angle of the sensorless observer can quickly track the actual angle of the motor, which can be directly transplanted into your own model for use, and then used together with the parameter adjustment experience;
The flux sensorless algorithm is a very practical algorithm that can be used for low-speed or even zero-speed observation, and has good convergence and strong stability.