混合式步进电机细分控制方法优化策略研究与仿真

Research and simulation for optimization of subdivision control used in hybrid stepper motor

针对混合式步进电机闭环控制系统的固有缺点、数学参考模型的失真、电机磁滞损耗和涡流损耗的问题,结合混合式步进电机结构原理、步进电机细分控制原理、最优控制思想和自适应控制思想,分别将最优性能指标、直接电流反馈以及有限时间参考模型修正方法引入到步进电机受控系统中。在三相混合式步进电机的数学模型基础上,分别采用普通细分控制方法和基于优化思想的细分控制方法进行了Simulink仿真。研究结果表明,采用基于优化思想的细分控制方法,可以较好地提高电机的控制性能。

Aiming at the inherent drawbacks of the hybrid stepper motor,the distortion of the mathematical reference model and the electromagnetic loss caused by hysteresis and eddy of the HSM,the optimal performance index,direct current feedback （DCF）and the model of self-correction in the limited time was pulled into the HSM controlled system based on the structure of the HSM,the theory of stepper motor subdivision control, the optimal control and the adaptive control. The general subdivision control and optimized subdivision control was used in the Simulink simulation based on the mathematic model of three-phase HSM respectively. The results indicate that the HSM controlled system has better performance using optimized subdivision control.