Design and Implementation of a Dynamic Voltage Boosting Drive for Permanent Magnet Synchronous Motors

This paper presents an integration of the interleaved bi-directional DC/DC converter with a vector controlled permanent magnet synchronous motor (PMSM) drive to give the motor operating in high speed with minimum copper loss control. The interleaved DC/DC converter is designed in the discontinuous conduction mode (DCM) such that the controller design becomes straightforward. The large signal perturbation usually makes the controller saturation and the inductor over current. Hence, the anti-windup and current limit considerations are also discussed in the paper. The modified vector controlled scheme of the PMSM drive is developed by considering dynamic DC link voltage boosting such that the motor can always have minimum copper loss performance in high speed. Finally, several experimental results are provided to show the performances of the integrated drive.