Mathematical Modelling On VSI Fed PMSM Using DTC Method

Description

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To develop a mathematical model of PMSM and implement direct torque control of PMSM and to evaluate the performance of PSMS motor drive.

https://www.youtube.com/watch?v=xNXCxORXJ8Q

The stator of the PMSM comprises balanced three-phase winding similar to the wound rotor synchronous motor. The mathematical model of PMSM is derived from that of a wound rotor machine under the assumption that the armature emf is induced by the permanent magnets in place of dc excitation.

 

In this zip file, you will find slx file, script(m file), and pdf.

 

Three signals affect the control action in a DTC system. They are namely

1. Torque
2. The amplitude of the stator flux linkage
3. Angle of the resultant flux vector

 

The estimator obtains the torque and flux signal. Regulation of these two signals is done with the help of two hysteresis controllers. The rotor position estimator and the hysteresis controller give output signals to the switching table who in turn selects the switching of the inverter legs and applies a set of voltage vectors across the motor terminals.

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Thanks & regards,
CS Electrical And Electronics Team

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