Title :
Mathematical Model for MTPA Control of Permanent-Magnet Synchronous Motor in Stator Flux Linkage Synchronous Frame
Author :
Inoue, Tatsuki ; Inoue, Yukinori ; Morimoto, Shigeo ; Sanada, Masayuki
Author_Institution :
Grad. Sch. of Eng., Osaka Prefecture Univ., Sakai, Japan
Abstract :
A mathematical model is proposed for the maximum torque per ampere (MTPA) control law of a permanent-magnet synchronous motor (PMSM) in the stator flux linkage synchronous frame (M-T frame). The mathematical model takes into consideration magnetic saturation and cross-magnetization effects. In taking into consideration magnetic saturation effects, most of the mathematical models in the d-q frame are complex. The M-T frame has several advantages, such as the simplicity of the flux-weakening control law and its applicability to various motors. In this paper, the control characteristics of a PMSM in the M-T frame are analyzed, and a mathematical model for estimating the MTPA control trajectory in the M-T frame is proposed. In addition, a method of simply determining the parameters for the mathematical model is proposed. The validity of the proposed model is confirmed by comparing the analytical and experimental results.
Keywords :
machine control; magnetic flux; permanent magnet motors; stators; synchronous motors; torque control; M-T frame; PMSM maximum torque per ampere control; cross-magnetization effects; magnetic saturation effects; permanent magnet synchronous motor MTPA control; stator flux linkage synchronous frame; Couplings; Magnetic flux; Mathematical model; Saturation magnetization; Stators; Synchronous motors; Torque; Direct torque control (DTC); M-T frame; Permanent-magnet synchronous motor; direct torque control; magnetic saturation; mathematical model; maximum torque per ampere; maximum torque per ampere (MTPA); permanent-magnet synchronous motor (PMSM); stator flux linkage synchronous frame (M-T frame);
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2015.2417128
