Title :
A predictive control technique for PWM-rectifier in vector controlled induction motor drives
Author :
Brando, G. ; Del Pizzo, A.
Author_Institution :
Dept. of Electr. Eng., Univ. of Napoli Federico II
Abstract :
In the paper, an optimized control technique of an active front-end is described with reference to induction motor drives with a voltage source inverter combined with an active voltage source rectifier. Both the motor-side and line-side PWM power converters employ IGBTs as switching devices. Based on a simplified analytical solution of the system mathematical model in a discrete digital control, a coupled control plus modulation technique is pointed out. It is able to estimate the values of the interesting electrical quantities easily in some switching instants within the control sampling period. This allows one to evaluate the width of the different modulation intervals directly. A very simple method to recognize the modulation sector quickly in the complex plane is also proposed. A numerical analysis is performed in order to test the reaction capability of the active front-end to different heavy variations of the operating conditions of the drive.
Keywords :
AC-DC power convertors; DC-AC power convertors; PWM invertors; bipolar transistor switches; control system analysis; control system synthesis; discrete systems; induction motor drives; insulated gate bipolar transistors; machine vector control; optimal control; power bipolar transistors; power semiconductor switches; predictive control; rectifying circuits; switching convertors; IGBT PWM power converters; PWM rectifier; active voltage source rectifier; control design; control sampling period; control simulation; discrete digital control; mathematical model; modulation sector; modulation technique; numerical analysis; optimized control technique; predictive control technique; switching instants; vector controlled induction motor drives; voltage source inverter;
Conference_Titel :
Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7369-3
DOI :
10.1109/ISIE.2002.1025959