行波超声波电机微步控制研究  

Micro-step Control for Traveling-wave Ultrasonic Motor

作　　者：华亮[1,2] 冯浩[2] 顾菊平[1] 张建生[3] 

机构地区：[1]南通大学电气工程学院,江苏南通226019 [2]浙江工业大学智能信息研究所,浙江杭州310032 [3]常州工学院电子信息与电气工程学院,江苏常州213002

出　　处：《电气传动》2009年第3期72-76,共5页Electric Drive

基　　金：江苏省科技厅基金(Bk2005405);南通市应用研究计划项目(K2007023);南通大学自然科学基金项目(07Z047)

摘　　要：针对行波超声波电机(TRUSM)的启动特性、运行特性、调速特性和步进特性进行了深入研究,探讨了负载对TRUSM微步控制的影响并揭示了其中规律,提出了微步控制的改进方法。该方法在电机特性实验研究基础上,通过最小二乘法拟合出的经验公式对电机步距角的偏差进行修正,实现了行波超声波电机带负载时的等步距运行。所给出的方法和结论,为行波超声波电机开环精密定位控制的进一步推广打下坚实的基础。The starting characteristic, operating characteristic, speed adjustable characteristic and the step characteristic of traveling-wave ultrasonic motor were researched. The regularity that the micro-step＇s accuracy for controlling traveling-wave ultrasonic motor influenced by different loads was concluded and one method for micro-step controlling was improved. And the deviation of the stepping angle can be modified by the empirical calculated through the simulation by the least square procedure founded on all characteristic experiments about traveling-wave ultrasonic motor. The results can improve the precision of position control and promote the traveling-wave ultrasonic motor in open loop.

关 键 词：行波超声波电机 微步控制 步进特性 

分 类 号：TM383[电气工程—电机]