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标题：两相混合步进电机开环高速控制策略研究 |
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作者：茹珂，郭希铮，游小杰，等 |
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| 2018年第10期 访问次数：254次 |
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摘要：步进电机采用开环细分控制方案，不但能在中低速时能够保证电机的转速与位置精度，同时也降低了伺服控制成本。但是目前的开环控制方案，在电机高速运行时存在转矩小、电机震动大等问题，这限制了步进电机的推广与发展。因此，本文提出了一种新的开环控制策略，首次将传统弱磁控制方案应用于开环控制中，并结合速度脉动反馈控制方案，以提高电机在高速时的转动性能。通过实验，将当前主流的开环控制方案与本文提出的控制策略进行对比分析，验证了此方法能够有效地提高开环高速控制时电机运行的稳定性与转矩。
关键词：两相混合步进电机；开环控制；高速运行；速度脉动反馈
Abstract: Stepper motor openloop subdivision control program, not only ensure the motor speed and position accuracy at low speed, but also reduces the cost of servo control. However, the current openloop control scheme has such problems as small torque and large motor vibration when the motor runs at high speed, which limits the promotion and development of the stepper motor. This paper proposed a strategy which combined the traditional fluxweakening control scheme with the speed pulsation feedback control scheme to improve the motor rotation performance in the highspeed operation of the openloop control. The experimental results show that this method can effectively improve the stability and torque of the motor during openloop highspeed control, compared with other openloop control scheme.
Key words: twophase hybrid stepping motor; openloop control; highspeed operation; speed pulsation feedback control
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