Abstract
A high response field weakening control has been developed for the torque control drives of permanent magnet synchronous motors (PMSMs). Compared to the conventional method, the torque response and the output torque of PMSMs in the voltage saturation region becomes higher when using the proposed method. In this paper, the field weakening control, which is generated for a voltage phase operation command, is described. The principle of operating the proposed method and the design approach of the feedback gains are clarified. The validity of the proposed method is checked by the frequency domain analysis and the time domain simulations. The torque step response between conventional and proposed methods was determined by simulation and experiment.
