Title :
Comparative Study of PMSM Drive Systems Based on Current Control and Direct Torque Control in Flux-Weakening Control Region
Author :
Inoue, Yasuyuki ; Morimoto, Shigeo ; Sanada, Masayuki
Author_Institution :
Grad. Sch. of Eng., Osaka Prefecture Univ., Sakai, Japan
Abstract :
This paper examines the control performance of permanent-magnet synchronous motor drive systems based on current control and direct torque control (DTC) when flux-weakening control is applied. The control law in the M-T frame, which is used in the DTC, requires only armature resistance, whereas the control law in the d-q frame, which is used in current control, requires many motor parameters for flux-weakening control. The experimental results clarify the influence of parameter variation on the control characteristics of flux weakening and torque limiting. The DTC-based motor drive system combined with the control laws in the M-T frame has several advantages, including insensitivity to parameter variation, simplicity of calculation, and stable control.
Keywords :
electric current control; machine control; permanent magnet motors; synchronous motor drives; torque control; DTC; M-T frame; PMSM drive systems; armature resistance; current control; d-q frame; direct torque control; flux-weakening control region; parameter variation; permanent-magnet synchronous motor drive systems; torque limiting; Current control; Machine control; Permanent magnet motors; Resistance; Stators; Torque control; Voltage control; Current control; direct torque control; flux weakening; machine vector control; permanent-magnet machines;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2012.2227134
