Title :
Predictive current control with current-error correction for PM brushless AC drives
Author :
Wipasuramonton, P. ; Zhu, Z.Q. ; Howe, David
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Sheffield
Abstract :
The performance of the conventional predictive current control (PCC) when applied to a permanent-magnet brushless ac (PM BLAC) drive is analyzed. A technique is proposed to reduce the current errors that arise due to the inaccuracies in the system parameters and the nonideal behavior of the inverter during a steady-state operation. In addition, a current-regulated delta modulator is employed to achieve a fast dynamic response during a transient operation. The performance of the proposed PCC, which is simple to implement on a low-cost fixed-point DSP, is demonstrated experimentally
Keywords :
AC motor drives; brushless machines; delta modulation; electric current control; invertors; machine control; permanent magnet motors; predictive control; PM brushless ac drives; current error reduction; current regulated delta modulator; current-error correction; dynamic response; fixed-point DSP; inverter; permanent magnet brushless ac drive; predictive current control; Current control; Delta modulation; Error correction; Hysteresis; Performance analysis; Pulse width modulation; Pulse width modulation inverters; Steady-state; Switching frequency; Transient response; Brushless ac (BLAC) drive; current control; permanent magnet; predictive control; space-vector modulation;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2006.876085
