【作者】 李国虓；

【导师】 孙鹤旭；

【作者基本信息】 河北工业大学 ， 控制理论与控制工程， 2004， 硕士

【摘要】 永磁同步电动机步进控制的电动执行器是采用增量运动控制理论研制的新一代执行器控制系统。利用永磁同步电动机的步进控制，为角行程终端设备提供准确可靠的定位控制，步进角小、转矩大、惯量小，将使流量及压力控制达到高的技术指标和控制精度。 永磁同步电动机步进控制的电动执行器是基于新的控制思想和控制技术的机电一体化新型装置，基于交流步进控制理论，将交流电动机的磁场位置选为主要的控制目标，建立基于数字控制的交流步进控制模型，使执行器终端设备在给定位置目标下，通过位置反馈达到最优时间控制。这其中的交流步进控制理论打破了传统的增量运动控制思想，打破了连续与离散，速度与位置，旋转和步进的严格界限，以定、转子磁场空间矢量为主要控制目标，将增量控制与运动控制有机的结合起来，使增量控制向大容量、高效率、高精度方向发展。 本文研究了由圆形旋转磁场离散为多边形步进磁场的离散方法和空间旋转矢量的步进定位特性。介绍了对步进传动时间——空间诸量的分析方法。步进电源是产生步进磁势的关键，文章研究了三角波为载波，阶梯正弦波为调制波的脉宽调制技术，进而介绍了采用DSP组成全数字控制器，完成步进电源触发的执行器驱动器的设计。最后对本课题开发的执行器系统的结构和性能进行了介绍和分析。 实验证明，系统具有良好的速度和位置控制性能，有着广阔的发展前景。更多还原

【Abstract】 Permanent magnet synchronous motor (PMSM) step motion control for the electric actuator is a new actuator control system adopted incremental motion control theory. By means of the step control of PMSM, it can offer accurate and reliable position control for the angle travel terminal equipment. Step angle is small, torque is large and inertia is small. This system will promote the technical guideline and control accuracy of the flow and pressure control.PMSM step motion control for the electric actuator is a new mechatronics device based on new control theory and technology, based on ac step motion control theory, that selects the stator field position as the primary control objects and sets the ac step motion control model based on digital control to attain optimal time control through position feedback. This system makes a breakthrough of traditional incremental motion control theories. It breaks the strict ambit between continuum and discrete, speed and position, rotation and step, the space vectors of stator magnetic field and rotor magnetic field are selected as the main control objects, incremental motion control and motion control are combined organically to make incremental motion control develop to large capability, high efficiency, high precision.In this paper, the method of dividing circle rotating magnetic field into polygonal step magnetic field and the step orientation characteristic of space rotating vectors are researched. The analyse method for time-space variables of step motion drive is also introduced. Step power is the key for step magnetic potential, the pulse width modulate technology that selects the triangle wave as the carrier and ladder sine wave as the modulate wave is researched, furthermore the design of the actuator drive adopts DSP as the digital controller is introduced. In the end, the construct and performance of the actuator system are introduced and analysed.Experiments proved that this system has good control capability for speed and position and has good foreground.更多还原