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Title: Sensorless operation of cage induction motor using a MRAS observer with zero drift feedback integration
Authors: Gao, Qiang
Spiteri Staines, Cyril
Asher, Greg M.
Sumner, Mark
Keywords: Electric motors, Induction
Issue Date: 2005-09
Publisher: Institute of Electrical and Electronics Engineers
Citation: Gao, Q., Spiteri Staines, C., Asher, G. M., & Sumner, M. (2005). Sensorless speed operation of cage induction motor using zero drift feedback integration with MRAS observer. European Conference on Power Electronics and Applications (2005), Dresden. 2002-2005.
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 a sensorless speed controlled induction motor exploiting a MRAS observer. The sensorless system shows good performance down to frequencies of 0.2Hz.
Appears in Collections:Scholarly Works - FacEngIEPC

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