Stable Operation Region Analysis of Direct Torque Control System for Permanent Magnet Synchronous Motor

摘要

The stable operation regions are the important issues for direct torque control (DTC) system of permanent magnet synchronous motor (PMSM). The influences of the parameters, such as voltage, current, flux linkage and load angle, on the system operation are investigated through the analysis model presented in this paper. The analysis results show that the parameters must be properly regulated within their constraints so as to have a stable and safe operation. The analysis model has been validated by the numerical simulation on a prototype PMSM.