Title :
Robust measurement disturbance observer design for AC motor drive systems with current measurement errors
Author :
Cho, Kyung-Rae ; Seok, Jul-Ki
Author_Institution :
Dept. of Electr. Eng., YeungNam Univ., Kyungsan
Abstract :
In the vector control, current measurement errors deteriorate the motor drive system since the vector control is based on the current control. In this paper, in order to obtain precise torque control and eliminate the speed ripple, an online measurement disturbance observer (MDO) is proposed. Based on parameter sensitivity analysis, a practical method of designing robust MDO gains is proposed. The proposed method is applied to a commercial 1.1-kW permanent magnet synchronous motor to show its effectiveness and applicability.
Keywords :
AC motor drives; control system synthesis; electric current control; machine vector control; measurement errors; observers; permanent magnet motors; robust control; sensitivity analysis; synchronous motors; torque control; AC motor drive system; current control; current measurement errors; parameter sensitivity analysis; permanent magnet synchronous motor; power 1.1 kW; robust measurement disturbance observer design; torque control; vector control; AC motors; Current control; Current measurement; Error correction; Machine vector control; Motor drives; Robustness; Torque control; Torque measurement; Velocity measurement;
Conference_Titel :
Power Electronics, 2007. ICPE '07. 7th Internatonal Conference on
Conference_Location :
Daegu
Print_ISBN :
978-1-4244-1871-8
Electronic_ISBN :
978-1-4244-1872-5
DOI :
10.1109/ICPE.2007.4692568
