Title :
A novel position sensorless control scheme for doubly fed reluctance motor drives
Author :
Liao, Yuefeng ; Sun, Chiping
Author_Institution :
Corp. Res. & Dev., Gen. Electr. Co., Schenectady, NY, USA
Abstract :
A novel position sensorless control algorithm for the newly developed doubly fed reluctance motor (DFRM) drives is presented. The control makes use of the 60 Hz terminal variables, which are easy to acquire and process, for estimation and control of the torque angle of the machine, while the speed of the system is given in an open-loop mode. The control is robust and suitable for variable-speed pump-type application. With this control, the required VA ratings of the PWM converter are only 50% of that of the DFRM motor, and the motor can be started with full load torque. This control scheme has been successfully implemented on a 2-HP DFRM drive
Keywords :
machine control; power convertors; pulse width modulation; pumps; reluctance motors; torque control; variable speed drives; 2 hp; 60 Hz; 60 Hz terminal variables; PWM converter; doubly fed reluctance motor drives; open-loop mode; position sensorless control scheme; torque angle control; torque angle estimation; variable-speed pump-type application; Costs; Induction motors; Open loop systems; Reluctance motors; Sensorless control; Stator windings; Sun; Synchronous motors; Torque control; Variable speed drives;
Journal_Title :
Industry Applications, IEEE Transactions on
