Modeling and simulation of a vector-controlled synchronous machine in motoring and generating mode

A vector-controlled permanent-magnet (PM) synchronous machine has been modeled and simulated in both the motoring and generating mode of operation. The control provides for the maximized torque and, therefore, maximum efficiency during motoring, and for a controlled power, tight voltage regulation in the presence of load changes, and minimum bus voltage ripple at the output of an ac-dc converter during generation. A three-phase phase-locked loop is used to provide the unity vector information in both the sensor-based and sensorless scheme. The results of the simulation are presented, including modeling details and simulation parameters