Asynchronous slip-ring motor synchronized with permanent magnets

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Abstract

The electric LSPMSM motor presented in the paper differs from standard induction motor by rotor design. The insulated start-up winding is located in slots along the rotor circumference. The winding ends are connected to the slip-rings. The rotor core contains permanent magnets. The electromechanical characteristics for synchronous operation were calculated, as were the start-up characteristics for operation with a short-circuited rotor winding. Two model motors were used for the calculations, the V-shaped Permanent Magnet (VPM) – Fig. 3, and the Linear Permanent Magnet (IPM) – Fig. 4, both rated at 14.5 kW. The advantages of the investigated motor are demonstrated in the conclusions.

[1] Bernatt J., Gawron S., Glinka T. et al., Rotor of electric motor with permanent magnets, (in Polish), Polish patent application, P.415273 (2015).

[2] Rossa R., Reluctance motor with additional permanent magnets excitation, (in Polish), PhD Thesis, Department of Electrical Machines and Devices, Silesian University of Technology, Gliwice (2006).

[3] Zawilak T., Utilizing the deep bar effect in direct on start of permanent magnet machines, Przegląd Elektrotechniczny, vol. 2013, no. 2b, pp. 177-179 (2013).

[4] Zawilak T., Zawilak J., Line start permanent magnet synchronous motor in ball mill application, (in Polish), Maszyny Elektryczne – Zeszyty Problemowe, vol. 2016, no. 3, pp. 169-173 (2016).

[5] Ogbuka C., Nwosu C., Agu M., Dynamic and steady state performance comparison of line-start permanent magnet synchronous motors with interior and surface rotor magnets, Archives of Electrical Engineering, volume 65, issue 1, pp. 105-116, ISSN (online) 2300-2506, March 2016, DOI: 10.1515/aee-2016-0008

[6] Khazdozian H.A., Jiles D.C., Hadimani R.L., Magnetic flux focusing for generator designs, Magnetic Technology International, pp. 24-28, ISSN (print) 2047-0509 (2017).

Archives of Electrical Engineering

The Journal of Polish Academy of Sciences

Journal Information


CiteScore 2016: 0.71

SCImago Journal Rank (SJR) 2016: 0.238
Source Normalized Impact per Paper (SNIP) 2016: 0.535

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