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The focus of this paper is to improve self-sensing performance of interior permanent magnet synchronous machine (IPMSM) by modifying rotor configurations. Field intensified IPMSM (FIIPMSM) is designed by adding flux barriers in the rotor of an IPMSM. In comparison with IPMSMs, FIIPMSMs have the advantage of decoupling saturation-induced saliency, cross-coupling effects and also secondary saliencies,...
Accurate knowledge of the high frequency inductance profile plays an important role in many designs of sensorless controllers for surface inductance. A special algorithm is used to decouple the cross-coupling effects between the d-axis and the q-axis, which allows mounted permanent magnet (SMPM) synchronous motors. This paper presents an AC+DC measurement method for determination of the d-axis and...
In order to control the speed and/or position of permanent magnet (PM) motors, they require position sensors. Basically, the auto-commutation needs 3 sensors for a 3-phase motor. In micro-motors, as there is no space for the sensors, self-sensing must be used. With big motors, suppression of the sensors enhances the overall reliability. The motor becomes a sensor itself and electromagnetic phenomena...
The analysis of self-excited induction generator (SEIG) starts from its magnetizing inductance. The value of magnetizing inductance at very low terminal voltage is one of the key factors for self excitation. This paper presents the effect of magnetizing inductance on self-excitation and describes the loading analysis of an isolated induction generator. It also describes how the operating frequency...
This paper is introducing a fast Matlab toolbox to analysis the transient behavior of three-phase electrical machinery (EM). The well known models with several differential equations of voltage and current in rotor reference frame along with the torque and speed equations is used in matrix form to model the EM such synchronous machine, induction machine and DC machine. In order to fast simulation...
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