A Detailed Comparison Between FOC and DTC Methods of a Permanent Magnet Synchronous Motor Drive

This paper focuses on detail comparison between two common control methods including Field Oriented Control (FOC) and Direct Torque Control (DTC) of the Permanent Magnet Synchronous (PMS) motor. The main characteristics of the motor such as torque, flux and speed under different operation conditions are studied and the advantages of FOC and DTC are obtained. It can be concluded that although both the DTC and FOC methods have different structures but the motor has the same behavior on the control methods. Thus, it is concluded that both the methods can be implemented as the Direct Flux Ccontrol (DFC) and can be applied as an optimized method of PMS motor control in the industry applications.

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