L. Morel et al., DOUBLE-FED INDUCTION MACHINE - CONVERTER OPTIMIZATION AND FIELD-ORIENTED CONTROL WITHOUT POSITION SENSOR, IEE proceedings. Electric power applications, 145(4), 1998, pp. 360-368
The authors present a new system for variable speed using a double-fed
induction machine. With a special operating mode, the apparent power
of the inverter can reach only 20% of the maximum mechanical power, co
mpared to a classical solution which needs 120%. Control laws are also
studied with and without a sensor and they are particularly robust. T
he approach is validated by simulations and experimental results.