Design Studies on a Permanent Magnet Synchronous Machine With Y- and $\Delta$-Connected Stator Winding

Schmidt, Erich; Susic, Marko; Eilenberger, Andreas

doi:10.1109/tmag.2010.2096202

Cited by 10 publications

(2 citation statements)

References 10 publications

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“…If parasitic capacities are small enough, a zero-sequence voltage component does not lead to a ZSCC or to additional magnetic fields. Therefore, the fundamental characteristic of a threephase machine can be expressed by ( 4) and (5).…”

Section: Theorymentioning

confidence: 99%

“…Therefore, the authors of [4] suggest comparing the amplitude of the ZSCC under healthy and faulty conditions. In [5] a delta-and a star-connected PMSM with the same design in the use case as a wheel hub drive are compared. To evaluate the additional copper losses in the delta-connected machine, the ZSCC is investigated under no-load operation of the motor.…”

Section: Introductionmentioning

confidence: 99%

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Loss Comparison of Small Delta- and Star-Connected Permanent Magnet Synchronous Machines

Rehm

Breining

Decker

et al. 2019

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

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Delta-connected stator windings are often used in mass production of small Permanent Magnet Synchronous Machines (PMSMs). In comparison to star-connected stator windings, a delta-connected winding system offers advantages for manufacturing and lowers production costs. A main disadvantage of motors with such a winding system are additional losses caused by the Zero-Sequence Current Component (ZSCC). In this paper the ZSCC and its impact on the generated losses in a deltaconnected PMSM used as a traction motor for a pedal electric cycle (Pedelec) is analysed. The calculated results are compared to those of a star-connected PMSM with the same design. We will show that the amplitude of the ZSCC depends on the operating point of the machine. As a result, the copper losses in the deltaconnected machine are up to 5.8 % higher than the ones in the star-connected machine. On the other hand, the iron losses are 1 % smaller in the delta-connected machine. The efficiency of the delta-connected machine is still up to 4 % smaller.

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Section: Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Loss Comparison of Small Delta- and Star-Connected Permanent Magnet Synchronous Machines

Rehm

Breining

Decker

et al. 2019

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

View full text Add to dashboard Cite

show abstract

Calculation of electromagnetic quantities of permanent magnet synchronous machines with tooth coil windings using finite elements and frozen permeabilities

Schmidt

2015

Elektrotech. Inftech.

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Analysis of electromagnetic phenomena in modulated flux synchronous generator

Jędryczka

Szeląg

Gwóźdź

et al. 2018

COMPEL

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Purpose The purpose of this paper is to present the electromagnetic phenomena in permanent magnet synchronous generator (PMSG) suited for wind turbines with uniquely designed system of two windings. The machine’s windings allow for application of a reliable and low-cost power electronic converter. Design/methodology/approach The 2D field-circuit model has been developed and used in comparative analysis between reference design PMSG with concentrated three-phase winding and two-windings PMSG to facilitate application of a low-cost and reliable AC/DC power electronic converter. The paper focuses on comparison of radial force density, core losses and torque waveforms in the proposed and reference machine with sinusoidal load currents. Findings The usefulness of the proposed approach for analysis of the two-winding PMSG performance by means of the field-circuit model has been proved. The obtained results show practically no drop off of performance of proposed machine in relation to reference PMSG. Moreover, it has been shown that both machines are characterized by the same level of radial force density. Therefore, the lower cost and reliable power electronic converts can be applied in the wind power energy systems (WPES) by slightly more complex design of the stator winding. Originality/value The proposed 2D field-circuit numerical model makes it possible to analyze the performance of the star-delta winding PMSG dedicated to be loaded by the AC to DC converter specially designed to achieve high reliability and efficiency of the system. Presented comparative studies on generator performance show that proposed modulated synchronous flux generator characterize with the same output torque at given supply current and core losses level like conventional PMSG with sinusoidal load.

show abstract

Design Studies on a Permanent Magnet Synchronous Machine With Y- and $\Delta$-Connected Stator Winding

Cited by 10 publications

References 10 publications

Loss Comparison of Small Delta- and Star-Connected Permanent Magnet Synchronous Machines

Loss Comparison of Small Delta- and Star-Connected Permanent Magnet Synchronous Machines

Calculation of electromagnetic quantities of permanent magnet synchronous machines with tooth coil windings using finite elements and frozen permeabilities

Analysis of electromagnetic phenomena in modulated flux synchronous generator

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