Wide-Range Speed Control of Three-Phase Squirrel-Cage Induction Motors Using Static Frequency Converters
- 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) , 53-60
- https://doi.org/10.1109/TIGA.1969.4180988
Abstract
An equipment is presented for speed control of three-phase squirrel-cage induction motors supplied through a thyristor converter directly from the mains (the European 50-Hz system) by controlling the frequency and voltage magnitude. Thus a continuous speed control system is achieved, corresponding to a frequency range of from 2.5 to 85 Hz. Speed control is at a constant torque, up to the motor frequency rating (50 Hz), and at a constant power over this frequency. The system configuration is described, a brief analysis of the control loop parameter adjustment is given, and the experimental results are discussed. Finally, the general characteristics of the method are presented.Keywords
This publication has 3 references indexed in Scilit:
- Thyristor Adjustable Frequency Power Supplies for Hot Strip Mill Run-Out TablesIEEE Transactions on Industry and General Applications, 1967
- AC Motor Supply with Thyristor ConvertersIEEE Transactions on Industry and General Applications, 1966
- Precise Control of a Three-Phase Squirrel-Cage Induction Motor Using a Practical CycloconverterIEEE Transactions on Industry and General Applications, 1966