A review of control methods for brushless doubly-fed reluctance machines

The control methods for brushless doubly fed reluctance machine (BDFRM) were presented. The various aspects of field oriented control, direct torque control and scalar control of an ideal BDFRM were discussed. It was shown that the speed variations above and below the synchronous speed were achieved by the introduction of a slight time delay in setting the load torque to a particular torque reference value in simulation