Slip Power Recovery in an Induction Motor by the Use of a Thyristor Inverter
- 1 January 1969
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry and General Applications
- Vol. IGA-5 (1) , 74-82
- https://doi.org/10.1109/tiga.1969.4180991
Abstract
The low-speed efficiency of an induction motor is improved by rectifying slip-frequency power, inverting this to line frequency, and injecting it back into the supply directly (line feed-back) or through auxiliary stator windings (stator feedback). Torque-speed curves then have the nature of a variable-speed drive. The low power factor and nonsinusoidal supply current of the line feedback connection are improved by use of the stator feed-back method but the improvement of efficiency is then much less. Line feedback with a two-phase induction motor eliminates the need for a variable control voltage source.Keywords
This publication has 3 references indexed in Scilit:
- Induction Motor Speed Control with Static Inverter in the RotorIEEE Transactions on Power Apparatus and Systems, 1966
- Inverter Rotor Drive of an Induction MotorIEEE Transactions on Power Apparatus and Systems, 1965
- Considerations concerning a modified Kramer systemProceedings of the Institution of Electrical Engineers, 1963