Title :
AC current regulator for asynchronous drives with PRM modulator
Author :
Stefano, R.D. ; Marino, P. ; Scarano, M. ; Vasca, F.
Author_Institution :
Napoli Univ., Italy
Abstract :
A pulse ratio modulated current regulator for AC motor drives is proposed. The control scheme is realized by employing a pulse ratio modulator (PRM) and a linear time-varying proportional plus derivative (PD) regulator. The proposed scheme is equivalent to a hysteresis current regulator but does not need a large bandwidth current transducer. The mathematical model and the commutation features of the PRM, in static and dynamic conditions, are presented. Simulation results of 3 kW AC drive are reported
Keywords :
commutation; electric current control; electric drives; hysteresis; induction motors; machine control; modulation; two-term control; 3 kW; commutation; electric current control; hysteresis current regulator; induction motor drives; machine control; mathematical model; pulse ratio modulator; two-term control; AC motors; Bandwidth; Commutation; Hysteresis; Mathematical model; PD control; Proportional control; Pulse modulation; Regulators; Transducers;
Conference_Titel :
Industry Applications Society Annual Meeting, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-0635-X
DOI :
10.1109/IAS.1992.244348
