A new cross-saturated torque model of highly utilized synchronous reluctance machine

Ogbuka, Cosmas; Nwosu, Cajethan; Umoh, Gideon

doi:10.24425/118995

Cited by 3 publications

(2 citation statements)

References 28 publications

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“…The synchronous reluctance motor (SRM), having reduced losses due to the absence of rotor winding, can be modelled for direct-on-line starting [1,2] by using a cage in the rotor and a suited winding configuration to enhance efficiency. The SRM seeks to improve the saliency of the machine when considering the geometry design, thus enhancing the reluctance torque [3,4]. Many researchers have contributed greatly to the improvement of the saliency of the machine [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The SRM seeks to improve the saliency of the machine when considering the geometry design, thus enhancing the reluctance torque [3,4]. Many researchers have contributed greatly to the improvement of the saliency of the machine [3][4][5][6][7][8]. To minimize the harmonics, the winding configuration is modelled to suit the supply voltage, as these are very essential for the multi-phase machine.…”

Section: Introductionmentioning

confidence: 99%

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Effect of stator winding chording on the performance of five phase synchronous reluctance motor

Umoh,

Obe,

Mama

et al. 2024

Journal of Energy Systems

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The effect of winding chording on five-phase synchronous reluctance motor (SRM) modelled in phase variables is presented. The stator winding configuration is shifted a pole pitch from a full-pitch configuration to a 54 degrees over-full-pitched configuration incorporating the effect of 3rd harmonic of the air-gap magneto-motive force in the inductance equations. The models are monitored on starting, synchronism, loading, faults and loss of synchronism. These are considered simultaneously with vector potential, rotor speed, air-gap flux linkage and winding current. The phase variable (analytical) models have been simulated by using MATLAB/Simulink software while ANSYS Maxwell software has been used to simulate the finite element model (FEM) of the motor for corresponding chording ranges for comparison on direct online starting (DOL). Under all conditions considered in the work, the detailed results are presented and very close similarity is observed between the analytical and the nearly ideal FEM model for all chording ranges and the similarity is enhanced with increase in chording angle.

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