一种新型的五相混合式步进电动机驱动技术  

A New Drive Technique for Five-phase Hybrid Stepping Motor

作　　者：李先峰[1] 于平[1] 李东景[1] 齐心达[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,空间光学一部,吉林长春130033

出　　处：《电力电子技术》2011年第9期102-104,共3页Power Electronics

基　　金：国防预研基金资助项目(O5001SA050)~~

摘　　要：五相混合式步进电动机作为一种高性能电机,具有分辨率高、运行平稳等优点。首先介绍了一种五相混合式步进电动机的空间矢量PWM驱动技术,以及相应的电机绕组连接方式和功率拓扑结构;其次分析了这种驱动技术下电机运行的转矩合成原理;然后结合恒频恒总流峰值跟踪技术,介绍了该驱动技术的具体实现方式;最后通过原理样机验证了该驱动方式对绕组电流的改善,并进一步阐述了实现微步驱动的可行性。采用这种驱动方式的五相混合式步进电动机具有优良的动态性能和平稳性,具有良好的应用前景。Five-phase hybrid stepping motor,as a high performance motor,has advantages of high resolution,smooth operation.This paper introduces the new space vector PWM drive technique for five-phase hybrid stepping motor,the corresponding motor winding connections and the power topology.The synthesis principle of the torque under this drive technique is analyzed.Combined with constant frequency-constant total current peak tracking technology,the spe-cific implantation for driving is introduced.Finally,improving the winding currents under the drive technique is veri-fied through the prototype.This drive mode for a five-phase hybrid stepping motor has excellent dynamic performance and superior steady performance,it is suitable for space in the field of precision motion occasions with good value.

关 键 词：步进式电动机 微步驱动 空间矢量脉宽调制 

分 类 号：TM383.6[电气工程—电机]