In this article is presented the linear torque control of an interior permanent magnet synchronous motor operating in the constant torque and field weakening ranges. The constant torque control is implemented by using the maximum torque per Ampère curve of the motor. The terminal stator voltage remains constant along the field weakening range by controlling the armature reaction control. In order to obtain a better dynamic response, the maximum torque per Ampère control is extended up to the field weakening range, called partial field weakening region. Experimental and simulation results are presented in order to validate the proposed torque control methods.
Interior permanent magnet synchronous motor (IPMSM); linear torque control; maximum torque per Ampère control and field weakening control
