Using induction motor stator windings to extract speed information
- 13 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 213-218 vol.1
- https://doi.org/10.1109/ias.1989.96655
Abstract
A speed regulator based on a field-oriented control was constructed using speed information available from the moving flux wave in the air gap of an induction motor. The information takes the form of ripples in the flux caused by the motion of rotor bars through the flux wave. This information is accessed by using voltages available from taps taken off the stator windings. It is then isolated using a switched capacitor filter and captured using a frequency slaved loop. Although the speed regulator is limited in its operating range and shows only moderate performance, such a system could be used in applications where high performance is not required. It is also found that some improvements can be made by using a machine with unskewed rotor bars instead of the conventional skewed rotor.Keywords
This publication has 5 references indexed in Scilit:
- A direct field oriented controller for induction motor drives using tapped stator windingsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- A New Approach to Flux and Torque-Sensing in Induction MachinesIEEE Transactions on Industry Applications, 1986
- Control Methods for Good Dynamic Performance Induction Motor Drives Based on Current and Voltage as Measured QuantitiesIEEE Transactions on Industry Applications, 1983
- A speed detection method of squirrel‐cage induction motor utilizing rotor slot‐harmonics in the air gap and its application to slip frequency controlElectrical Engineering in Japan, 1979
- MOS sampled data recursive filters using switched capacitor integratorsIEEE Journal of Solid-State Circuits, 1977