摘要
文章对永磁同步电机的直接力矩控制算法进行了研究 ,提出基于 DSP控制的恒定开关频率的永磁同步机直接转矩控制方法 ,它充分利用功率开关器件的开关频率能力 ,使转矩脉动达到最小 ;同时提出了适用于同步电动机的直接转矩控制开关表。在理论分析的基础上对其进行了仿真研究。仿真结果证实了该控制方法的可行性 ,系统转矩动态曲线显示了良好的动态性能。
In this paper, a direct torque control (DTC) method of permanent magnet synchronous motor (PMSM) drive system is studied. Based on DSP,a constant switch frequency DTC method is proposed which enables the minimum torque ripple with largest frequency. A new switch table is used to select voltage vectors effectively. By theory analysis and simulation research,the proposed control method is proved to enable diminishing the torque ripple,especially in low speed range. In the preliminary experiment,both smooth control of speed and high dynamic performance are achieved.
出处
《电气传动》
北大核心
2003年第1期18-21,共4页
Electric Drive
