Influence of Zero-Sequence Circulating Current on the Performance of Star-Delta Winding Line-Start Ferrite Assisted Synchronous Reluctance Motor.

Baka, Srinivas; Sampathirao, Sashidhar; Fernandes, B. G.

doi:10.1109/tec.2022.3154476

Cited by 5 publications

(1 citation statement)

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“…Two major issues have been associated with LS-SynRMs, which include poor power factor and high torque pulsation. The issue related to poor power factor has motivated several scholars to contemplate the use of permanent magnet (PM) in LS-SynRMs [5]- [8]. Although the work in [5] has presented simulation results that reported the full-load power factor of 0.885 for driving constant loads, the analysis focused mostly on economic considerations rather than technical performance of the proposed line-start PM assisted synchronous reluctance motor with ferrite magnet.…”

Section: Introductionmentioning

confidence: 99%

Line-Start Synchronous Reluctance Motor With V-Shaped Rotor Laminations

Muteba

2022

IEEE Access

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A line-start synchronous reluctance motor (LS-SynRM) that meets the IE4 efficiency and has satisfactory starting and synchronizing capabilities while operating with acceptable power factor will find application in constant speed drives. This paper introduces a line-start synchronous reluctance motor with Vshape rotor laminations (LS-SynRM-VSRL). The motor, which has been designed from an IE2-132S4 conventional foot mounted three-phase induction motor NEMA frame, was modeled using the threedimensional (3D) Finite Element Method (FEM), then prototyped and tested for transient, dynamic, and steady-state performance under different load conditions. The Finite Element Analysis (FEA) and measured results of the LS-SynRM-VSRL are compared with those of a conventional line-start synchronous reluctance motor (CLS-SynRM). The results evidenced that both LS-SynRMs achieved successful synchronization on no-load, with the proposed LS-SynRM-VSRL reaching the steady state condition much quicker than the CLS-SynRM. Under steady-state operations, both LS-SynRMs achieved IE4 efficiency, with the proposed LS-SynRM-VSRL reaching an efficiency of 93.6% on full-load, in contrast to the 84.9% that the IE2-132S4 induction motor has achieved under the same loading condition.INDEX TERMS Constant speed drives, dynamic response and transient analysis, experimental measurements, finite element analysis, IE4 efficiency, line-start motor, low torque ripple, steady-state analysis, synchronizing capability, synchronous reluctance motor.

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Section: Introductionmentioning

confidence: 99%