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Sensorless Speed Operation of Cage Induction Motor using Zero Drift Feedback Integration with MRAS Observer
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| Author(s) |
SUMNER Mark; SPITERI STAINES Cyril; GAO Qiang; ASHER Greg |
| Abstract |
The paper investigates the improvement in sensorless vector control of induction machines through the use of a non-linear feedback integrator embedded in a standard rotor flux Model Reference Adaptive System (MRAS)-based observer. The feedback integrator compensates for drift and dc-offset and is capable of open loop flux estimation down to frequencies below 0.1Hz. The paper presents experimental results of sensorless speed controlled induction motor exploiting a MRAS observer. The sensorless system shows good performance down to frequencies of 0.2Hz. |
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| Filename: | 0084 |
| Filesize: | 542.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-12 by System |
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