Sensorless FOC for PMSM with BEMF estimator

Hi, by running my model I have this error message (Error using parametre_moteur (line 65) Simulink cannot solve the algebraic loop containing 'Cmde_estimateur_vitesse_position/Sum1' at time 0.0002250000000003423 using the TrustRegion-based algorithm due to one of the following reasons: the model is ill-defined i.e., the system equations do not have a solution; or the nonlinear equation solver failed to converge due to numerical issues. To rule out solver convergence as the cause of this error, either a) switch to LineSearch-based algorithm using set_param('Cmde_estimateur_vitesse_position','AlgebraicLoopSolver','LineSearch') b) reducing the ode45 solver RelTol parameter so that the solver takes smaller time steps. If the error persists in spite of the above changes, then the model is likely ill-defined and requires modification.) that I can not solve and I need your help please. thank you in advance

Answer 1

[khánh công]

Hello sir! I am also intesrest in this feild. Can i have yours simulnik model. I have the the same project but my model could not run. If could please sent me into [e-mail]. Thanks alot.