Obtaining the Current-Flux Relations of the Saturated PMSM by Signal Injection
This work provides a practical improvement for characterizing PMSMs in electric drive applications, though it is an incremental refinement of existing techniques.
The paper proposes a signal injection method to obtain saturated current-flux relations of a PMSM from locked-rotor experiments, which is independent of stator resistance and less sensitive to voltage biases compared to classical time integration methods.
This paper proposes a method based on signal injection to obtain the saturated current-flux relations of a PMSM from locked-rotor experiments. With respect to the classical method based on time integration, it has the main advantage of being completely independent of the stator resistance; moreover, it is less sensitive to voltage biases due to the power inverter, as the injected signal may be fairly large.