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The Influence of Parameter Mismatch on Natural Field Orientation Controlled Induction Motor Speed Estimation
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| Author(s) |
Darko Ostojiæ, Veran Vasiæ, Dra¾en Dujiæ, Djura Oros |
| Abstract |
The present paper will discuss sensorless induction
motor drives employiong natural field orientation (NFO) based
on rotor flux orientation. So far only NFO stator flux control
strategies have been discussed in the literature. Unlike the known
realizations, method uses rotor flux oriented FOC, avoiding
coupling between stator currents and attaining better responses.
Although control algorithm is independent from variation of
rotor resistance, there is strong influence of mismatch between
command and actual value of rotor resistance and estimated
speed. For speed estimation method uses simple estimation
formula, which sensitivity to parameter change has also been
investigated. Extensive experimentation is conducted at low
speeds of rotation. |
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| Filename: | 081 |
| Filesize: | 288.3 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-08 by System |
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