摘  要：针对某高速卷烟机供纸系统的恒张力控制，通过对供纸系统原理的分析，设计了一种新型的以DSP为核心、基于空间矢量算法的伺服控制系统，实现了供纸系统的恒张力实时控制。实践证明，这种控制系统结构简单、控制精度高、工作稳定。

Abstract:The model of double loop system is established based on Matlab/Simulink.With the use of MATLAB Function, it is convenient for different pwm modes to control the SLBLDCM in the model.The simulation results demonstrate its good dynamic characteristic, and speed,current and torque waves offer the help for choosing the best PWM mode of the actual motor.