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New Identification Method for Stator Core-Loss Resistance of AC Motors
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| Author(s) |
S. Shinnaka |
| Abstract |
This paper proposes a new unified method for identifying equivalent stator core-loss resistance of AC motors,
which can be applied to both of induction and synchronous motors. In order to make the AC motors exhibit
high performance such as precise torque generation and/or efficient energy transmission, stator core-loss
cannot be neglected in designing vector control systems. It is common to model stator core-loss in magnetic
circuit as loss caused by equivalent resistance in electrical circuit. One of the best mathematical models for
controlling AC motors with core-loss is a kind of parallel-type model that succeeds in modeling both eddycurrent
and hysteresis losses. The newly proposed method succeeds in identifying separately and
simultaneously two kinds of equivalent core-loss resistances on the model corresponding to eddy-current and
hysteresis losses. The practical usefulness of the method is evaluated and confirmed through experiments
using two induction motors of 5.5 and 2.0 (kW) having relatively high core-loss and a permanent magnet
synchronous motor of 750 (W) having relatively low core-loss. |
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| Filename: | EPE2001 - PP00115 - Shinnaka.pdf |
| Filesize: | 82.04 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-11 by System |
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