Optimized Design of SoC-based Control System for Multi-axis Drive

  • Qiang Gu Huazhong University of Science and Technology (HUST)
  • Yesong Li Huazhong University of Science and Technology (HUST)
  • Panqing Niu Huazhong University of Science and Technology (HUST)
  • Jiajiang Sun Huazhong University of Science and Technology (HUST)
Keywords: System-on-chip (SoC), motor drives, permanent magnet motors, proportional-integral (PI) control

Abstract

This study presents an optimized system-on-chip (SoC) based multi-axis control system for permanent magnet synchronous motor (PMSM). The multi-axis control system becomes considerably complex with increasing controlled axes and complicated control algorithms. This paper aims to provide a balanced design considering control performance, hardware constrains and feasibility. To cope with this problem, the system design is optimized by using pipeline and time division multiplexing technology. Due to the optimized architecture and the computation capability of SoC, the performance of the whole system can be preserved. To demonstrate this, a SoC implementation of the control system is presented and comprehensively analyzed. Herein, the vector control in the current loop is explained and an anti-windup proportional-integral (PI) controller is adopted in the speed loop. The sampling frequencies of the current loop and the speed loop are 16 KHz and 4 KHz respectively. Consequently, the execution time is several microseconds with reasonable consumed resources. Experimental results are shown to prove the efficiency of the proposed SoC-based solution.

DOI: http://dx.doi.org/10.5755/j01.eee.20.7.4848

Author Biographies

Qiang Gu, Huazhong University of Science and Technology (HUST)
Department of Control Science and Engineering,School of Automation
Yesong Li, Huazhong University of Science and Technology (HUST)
Department of Control Science and Engineering,School of Automation
Panqing Niu, Huazhong University of Science and Technology (HUST)
Department of Control Science and Engineering,School of Automation
Jiajiang Sun, Huazhong University of Science and Technology (HUST)
Department of Control Science and Engineering,School of Automation
Published
2014-08-29
How to Cite
Gu, Q., Li, Y., Niu, P., & Sun, J. (2014). Optimized Design of SoC-based Control System for Multi-axis Drive. Elektronika Ir Elektrotechnika, 20(7), 15-22. https://doi.org/10.5755/j01.eee.20.7.4848
Section
ELECTRICAL ENGINEERING