DSP-based controller for active damping of synchronous motor with three-phase rectifier charging control system

• Main Authors: Li-Jen Chang, 張力仁
• Other Authors: Pi-Cheng Tung
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/70129828038323544479

碩士 === 國立中央大學 === 機械工程研究所 === 100 === This paper applied the digital signal processor combined with motor drives and measurement modules to realize field oriented control method. For control of permanent magnet synchronous motor , we can use the speed feedback error and the coordinate inverse transform to calculate the q-axis current command by proportional integral controller . The d-axis current command is zero. We used the space vector pulse width modulation to calculate the command of IGBT module to achieve the current and speed control of PMSM. We detected the maximum speed of each cycle of the generator mode to adjust the speed command for the system maintaining a steady speed also achieve the purpose of active damping control. Through the Full-bridge SMR, the generator can apply DC voltage. We detected the relationship of three-phase currents to control the power switch. The power switch and generator equivalent inductance can consist the voltage boost circuit. We detected the DC-side voltage feedback error , can use the proportional integral controller to calculates the voltage command, and then control the stability of the DC-side voltage.