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The brushless doubly fed induction machine (DFIM), without brushes and slip rings, is regarded as an attractive alternative to the conventional DFIM in terms of reliability. This paper presents a sensorless field-oriented control strategy for the brushless-DFIM, which further increases its attractiveness as a drive system. With the use of a straightforward and alternative time-dynamic brushless-DFIM...
In order to precisely control the torque and flux, core loss and stray load loss, which are generally neglected, should be considered in the mathematical model of induction motor (IM) to design the controller. Some of literatures have shown how the detuning can be done in the rotor field oriented (RFO) control system to compensate the effects of core loss and stray load loss. But it has seen that...
In this paper, three calculation methods of torque for Surface-Mounted Permanent Magnet Synchronous Machines (SPMSMs) are performed, and the results including the average torque and the torque ripple from each method are compared. This is in order to enable one to choose an effective torque estimation technique for further torque ripple minimization in these machines. Accordingly, a vector controlled...
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