Squirrel cage induction machine model for the analysis ofsensorless speed measurement methods

摘要

In this work a squirrel cage induction machine model beendeveloped to include the stator current effects on the MMF spaceharmonics, dynamic and static eccentricity harmonics, and slotharmonics. The proposed model is intended to be used on testing thebehavior of different sensorless speed measurement techniques. Thisdynamic model has been developed using the superposition principle and amatrix description of the machine inductance. The model has beenvalidated using experimental data, and tested using atime-frequency-distribution method for sensorless speedmeasurement