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2 results on '"ynchronous motor"'

1. Start-Up Performance Prediction of Line-Fed Solid-Rotor Salient-Pole Synchronous Motors

Author

Alberto Tessarolo, Matteo Olivo, Simone Cicutto, Gianfranco Zocco, Nicola Barbini, IEEE, Olivo, Matteo, Barbini, Nicola, Tessarolo, Alberto, Cicutto, Simone, and Zocco, Gianfranco

Subjects
tarting performance calculation, Computer science, imulation, torque, Synchronous motors, olid rotor, finite element analysis, 02 engineering and technology, lumped parameter network, mechanical robustness, Rotor, solid rotor, 0202 electrical engineering, electronic engineering, information engineering, Solids, starting performance calculation, start-up performance prediction, direct-on-line starting, elf-starting capability, tarting performance, synchronous motor, Stator winding, Gas industry, lumped parameter networks, line-fed solid-rotor salient-pole synchronous motors, simulation, Start up, solid salient pole motor, Finite element method, rotors, Atmospheric modeling, Salient, Synchronous motor, olid salient pole motor, ynchronous motor, DOL starting, tarting, Solid, Control theory, Robustness (computer science), Performance prediction, Torque, self-starting capability, starting performance, tart-up performance prediction, 020208 electrical & electronic engineering, starting, mechanical robustne, lumped-parameter machine model, line-fed solid-rotor salient-pole synchronous motor, finite element analysi, power 17.5 MW, motor current, synchronous motors, Rotors, Stator windings
Abstract

Solid rotor synchronous motors are widely used in the Oil&Gas industry, because of their mechanical robustness and self-starting capability. The starting performance calculation for these machines is a challenging task. In this paper the specific case of a solid salient pole motor rated 17.5 MW at 1500 rpm is addressed. A simplified but accurate method is proposed and validated experimentally to predict the motor current and torque during direct-on-line (DOL) starting. The proposed methodology combines Finite Element Analysis (FEA) with a lumped-parameter machine model to obtain the best compromise between accuracy and computational efficiency.

Published
2018

2. An IPMSM torque/weight and torque/moment of inertia ratio optimization

Author

Rosario Miceli, P. Ognibene, Massimo Caruso, A. O. Di Tommaso, G. Ricco Galluzzo, Caruso, M, Di Tommaso, A, Miceli, R, Ognibene, P, and Ricco Galluzzo, G

Subjects
ynchronous motor, Stall torque, torque-weight ratio optimization, Materials science, optimisation, permanent magnet motor, finite element method, torque-load-angle characteristic, Settore ING-IND/32 - Convertitori, Macchine E Azionamenti Elettrici, law.invention, interior permanent magnet syncronous motor, Permanent magnet, magnetisation, Control theory, law, Rotor, Torque sensor, Torque, torque/weight ratio, Induction motor, Damping torque, FEM analysi, Load modeling, Torque motor, Rotor (electric), finite element analysis, permanent magnet motors, rotors, synchronous motors, IPMSM rotor structures, interior permanent magnet syncronous motors, torque-load-angle characteristics, torque-moment of inertia ratio optimization, Induction motors, Permanent magnet motors, Permanent magnets, Rotors, Stators, FEM analysis, IPMSM, optimization, permanent magnets, torque/moment of inertia ratio, Control engineering, Stator, Moment of inertia, finite element analysi, Direct torque control, IPMSM rotor structure
Abstract

In this paper, a torque/weight and torque/moment of inertia ratio optimization procedure for interior permanent magnet syncronous motors (IPMSMs) is presented. More in detail, a performance comparison between several IPMSM rotor structures has been carried out in order to determine the optimum geometry that can maximize the torque/weight and torque/moment of inertia ratios. A commercial motor, with known electrical and mechanical characteristics, has been taken as reference. Its rotor structure has been modified several times, obtaining different rotor geometries and, therefore, many IPMSM models with different electrical and mechanical characteristics. The finite element method (FEM) analysis of each IPMSMs has been performed using the software FEMM, allowing to determine the related torque/load-angle characteristics. From the comparison between the torque/load-angle characteristics of the different IPMSM structures, it can be stated that significant performance improvements can be obtained in dependence not only of the type of permanent magnets and their direction of magnetization, but also of the PM displacement within the rotor.

Published
2014

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