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This study investigates the effect of different skewing methods and angles for switched reluctance machines (SRM) having high pole count using multiphysics simulations. A 24/16 SRM is modeled for each skewing method and different skewing angles using 3D electromagnetic finite element analysis (FEA). Mechanical and acoustical analyses are performed to evaluate the effectiveness of different skewing...
The paper deals with the nonlinear analytical harmonic modeling (HM) of 3-phases, and 6-slots/4-poles switched reluctance machine (SRM). The proposed model consists in computing magnetic field distribution and static torque of a conventional winding distribution SRM. Because a SRM has inherently nonlinear characteristics, the analytical subdomain model which does not take into account the saturation...
A new toroidally wound switched reluctance machine (TSRM) with a single continuous multitapped winding is presented. This machine may be driven by a 6-switch asymmetric converter that supplies unipolar coil currents or by a 12-switch voltage source converter that supplies bipolar coil currents. The TSRM magnetic design and power electronic control is described, and its performance is compared with...
Comparative study of performance for different type of electric machines has taken place in face of the growing demand seeking maximum possible efficiency for electromechanical converters. For this, switched reluctance machines have proven to be strongly competitive in applications that deal with variable speeds. Comparisons between these machines and the already established induction machines are...
This work proposes an algorithm to control the torque of a switched reluctance machine (SRM). A 6/4 three phases SRM drive is controlled and simulated on PSCAD/EMTDC software. The machine is modeled using an analytical model that takes into consideration the non-linearity of the machine. The control is designed as a Model Predictive Control (MPC) using Discrete Space Vector Modulation (DSVM) with...
A pole arcs design method of 8/6 switched reluctance machine for torque ripple minimization is presented. The length of pole arc is limited by turn-on angle, turn-off angle and other parameters. With those constraints, the successive positive torque is maintained and negative torque is eliminated. Advanced turn-off angle is used to reduce torque ripple during phase commutation. Optimal turn-on and...
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