The radial-radial flux compound-structure permanent-magnet synchronous machine (CS-PMSM), integrated by two concentrically arranged permanent-magnet electric machines, is an electromagnetic power-splitting device for hybrid electric vehicles (HEVs). As the two electric machines share a rotor as structural and magnetic common part, their magnetic paths are coupled, leading to possible mutual mag...

The paper presents results of studies on the sensorless drive with permanent magnet synchronous motor (PMSM) supplied through the motor choke. The position is estimated using a modified Luenberger observer. Its modification consists in using a PII correction function instead a proportional one, which gives smaller estimation errors. The advantages of that observer structure are simple structure...

This paper investigates the impact of silicon carbide (SiC) metal oxide semiconductor field effect transistors (MOSFETs) on the dynamic performance of permanent magnet synchronous motor (PMSM) drive systems. The characteristics of SiC MOSFETs are evaluated experimentally taking into account temperature variations. Then the switching characteristics are firstly introduced into the transfer funct...

Alsawalhi, Jamal, Ph.D., Purdue University, December 2014. An Asymmetric Salient Permanent Magnet Synchronous Machine for Wide Constant Power Speed Range Applications. Major Professor: Scott Sudhoff. This work introduces a novel permanent-magnet synchronous machine (PMSM) architecture that employs rotational asymmetry to increase the torque density output in constant power variable speed applic...

Direct torque control (DTC) is one of the most prominent techniques used by permanent magnet synchronous motor (PMSM) drives in industry applications. Nevertheless, presence hysteresis controllers and inaccurate voltage switching table traditional DTC results higher flux ripple. This study proposes an enhanced functioned Surface-mounted PMSM (S-PMSM) drive with mitigation The operation relies o...

The position sensorless permanent magnet synchronous motor (PMSM), with its simple structure, is applied in the aerospace field high reliability requirements. To drive PMSM safely, three-phase current measured from driver needs to be isolated for closed-loop control. And then, accuracy measurement crucial achieving optimal performance. In paper, transformer (CT) centre taps employed isolate and...

The parameters of permanent magnet synchronous motor (PMSM) affect the performance vector control servo system. Because complexity nonlinear model PMSM, it is very difficult to identify PMSM. Aiming at problems large amount data calculation, low identification accuracy and poor robustness in process multi parameter motor, this paper proposes a weighted differential evolutionary particle swarm o...

The spoke-type permanent magnet synchronous motor (PMSM), which is a general ferrite magnetic flux-concentrated motor, has low portion of reluctance torque at the total magnitude. Therefore, as way to increase torque, there double-layer PMSM that can maximize difference in inductance between d-axis and q-axis. However, PMSM, cogging ripple, harmonic distortion (THD) with main cause vibration no...