The effects of lobe tip design parameters on compressor performance were evaluated by utilizing a computer simulation package and taking SRM-D asymmetric type rotor profile as an example. The result suggests that the requirements for high efficiency, large capacity, low inter-rotor contact force and low viscous friction loss do not always lead to the use of the same lobe tip designs. Of all the...

Although PSPICE is a powerful tool to simulate the circuits, it is a tough job to simulate the electromagnetic behavior of a converter-fed motor drive, particularly the switched reluctance motor (SRM) with many nonlinearities in its constituted components. Therefore, a simulation environment of the SRM drive combining the features of POWERSYS and SIMULINK is developed in this paper. In the esta...

Purpose – The purpose of this work is to applicate a sliding mode observer for sensorless control of switched reluctance motor (SRM) drive Design/methodology/approach – This paper presents an evaluation of the sliding-mode observer to estimate the SRM speed and rotor position. Non-linear model of a SRM is used and a computer simulation is developed based on data from an experimental motor syste...

The paper deals with a model of a switched reluctance motor (SRM) that can be used for the development of control methods for the electrical drives with the SRMs. The non-linear theory describing the behavior of the SRM is listed that uses differential equations including the electromagnetic equations, the electromechanical equations, and the motion equation. On the basis of this theory, there ...

This paper presents an analytical method to calculate the temporal and circumferential orders of radial force density harmonics in switched reluctance machines (SRMs) without running electromagnetic finite element analysis (FEA). The characteristics several SRM topologies are investigated, including 6/4, 24/16, 6/14 internal-rotor (IR) SRMs, 12/16 18/24 external-rotor (ER) SRM. study shows that...

A new method based on a fuzzy logic for estimating the phase inductance and resistance of switched reluctance motors (SRMs) is presented. The rotor position and the phase current of the 6/4 pole SRM are used to predict the phase inductance. The phase inductance results predicted by the fuzzy are in excellent agreement with the results of the finite element method and the fuzzy estimation of the...

In this study, radial forces that create noise, which is a fundamental problem in Switched Reluctance Motor (SRM), are investigated. Since force causes stator vibrations and noise caused by magnetic field, new switched reluctance motor model with increased rotor poles has been designed order to reduce the acting on poles. addition, structure high torque low leakage flux compared conventional wi...

Switched Reluctance Motors (SRM) have inherent advantages such as simple structure with non winding construction in rotor side, fail safe because of its characteristic which has a high tolerances, robustness, low cost with no permanent magnet in the structure, and possible operation in high temperatures or in intense temperature variations. The torque production in switched reluctance motor com...

This paper presents the performance computation of three-phase 6/4 poles Switched Reluctance Motor (SRM) with amorphous alloy core using transient Finite Element Analysis (FEA) in which the magnetic field is combined with a driving circuit. In order to minimize torque ripple in SRM, this paper proposes not only optimal combination of stator pole arc and rotor pole arc but also the turn-on and t...