Dynamic and steady state performance comparison of line-start permanent magnet synchronous motors with interior and surface rotor magnets

• Autorzy: Ogbuka C. , Nwosu C. , Agu M.

Identyfikatory

DOI

10.1515/aee-2016-0008

• Języki publikacji: EN

Abstrakty

EN

A comprehensive comparison of the dynamic and steady state performance characteristics of permanent magnet synchronous motors (PMSM) with interior and surface rotor magnets for line-start operation is presented. The dynamic model equations of the PMSM, with damper windings, are utilized for dynamic studies. Two typical loading scenarios are examined: step and ramp loading. The interior permanent magnet synchronous motor (IPMSM) showed superior asynchronous performance under no load, attaining faster synchronism compared to the surface permanent magnet synchronous motor (SPMSM). With step load of 10 Nm at 2 s the combined effect of the excitation and the reluctance torque forced the IPMSM to pull into synchronism faster than the SPMSM which lacks saliency. The ability of the motors to withstand gradual load increase, in the synchronous mode, was examined using ramp loading starting from zero at 2 s. SPMSM lost synchronism at 12 s under 11 Nm load while the IPMSM sustained synchronism until 41 seconds under 40 Nm load. This clearly suggests that the IPMSM has superior load-withstand capability. The superiority is further buttressed with the steady state torque analysis where airgap torque in IPMSM is enhanced by the reluctance torque within 90E to 180E torque angle.

Słowa kluczowe

EN

PMSM; line-start; damper winding; airgap torque; reluctance torque; saliency

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2016
• Tom: Vol. 65, nr 1
• Strony: 105--116
• Opis fizyczny: Bibliogr. 22 poz., fig., tab.

Twórcy

autor

Ogbuka C.

• Department of Electrical Engineering University of Nigeria, Nsukka

autor

Nwosu C.

• Department of Electrical Engineering University of Nigeria, Nsukka

autor

Agu M.

• Department of Electrical Engineering University of Nigeria, Nsukka

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę