智能调节续流模式的步进电机细分控制.

Aiming at the problems of response time and current ripple caused by the traditional decay modes of stepper motors under the microstepping control, a strategy for the smart regulation of decay mode were proposed. First, the traditional slow decay mode, fast decay mode and fix mixed decay mode were analyzed in detail. Second, a smart regulation scheme of decay mode was designed, which can automatically calculate the optimal decay mode. This scheme can dynamically adjust the fast decay percentage of the total fixed off time within a PWM (pulse width modulation) cycle to improve the performance of the microstepping control. Finally, a test platform was built to compare and analyze the current ripple of the traditional decay modes and the smart regulation in decay mode. This method was successfully applied to SADA of ALNES S7 satellite. The experimental results show that the proposed method achieves a balance between response time and current ripple, which makes the microstepping control more stable. [ABSTRACT FROM AUTHOR]