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Fast Estimation of Line-Start Reluctance Machine Parameters by Finite Element Analysis | IEEE Journals & Magazine | IEEE Xplore

Fast Estimation of Line-Start Reluctance Machine Parameters by Finite Element Analysis

Publisher: IEEE

Abstract:

This paper compares two methods to compute the parameters of a line-start synchronous reluctance (LSSR) machine, by means of finite element analysis. In both methods, bot...View more

Abstract:

This paper compares two methods to compute the parameters of a line-start synchronous reluctance (LSSR) machine, by means of finite element analysis. In both methods, both the impact of the skin effect on the rotor parameters and the impact of saturation on magnetizing inductances are taken into account. The first method is based on an equivalent single-phase model of the machine. A pulsating flux is imposed along the d- and q-axes separately, so as to compute the machine parameters along both d- and q-axes. Magnetizing inductances are achieved as a function of the flux, and the rotor resistances and leakage inductances are obtained as a function of rotor frequency. The second method is based on the d-q axis model of the LSSR machine. A rotating magnetic field is imposed, and the d-q axis parameters are estimated simultaneously from the field solution. In addition, such a method allows the cross-saturation to be considered as well.
Published in: IEEE Transactions on Energy Conversion ( Volume: 26, Issue: 1, March 2011)
Page(s): 1 - 8
Date of Publication: 02 September 2010

ISSN Information:

Publisher: IEEE

I. Introduction

The line-start synchronous reluctance (LSSR) machines are more and more used in several applications replacing induction machines (IM). The main reason is that their efficiency results to be higher than the IM, since there are no rotor current at steady state. Since there is no permanent magnets (PMs) included in the rotor, the LSSR cost is lower than PM machines. In addition, the rotor cage allows the machine to start up directly with line voltage, without inverter.

References

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