二相行波超声波电机的电压闭环控制  

Voltage Closed-Loop Control of 2-Phase Traveling Wave Ultrasonic Motor

作　　者：王海彦[1] 史敬灼[1] 

机构地区：[1]河南科技大学,河南洛阳471003

出　　处：《电机与控制应用》2009年第12期14-16,共3页Electric machines & control application

基　　金：河南省高校杰出科研人才创新工程项目(2005KYCX007)

摘　　要：超声波电机(USM)是一种新型微特电机,运行机理及相应的驱动、控制方式均不同于传统电磁电机。由于材料差异、制造偏差、运行温升及负载变化等因素的影响,使得二相行波USM的二相驱动电压幅值差异较大,不符合电机的理想运行条件,直接导致电机运行性能下降、转速波动大。针对这一问题,设计并实现了基于数字信号处理器(DSP)的USM二相电压闭环控制,使得二相电压幅值一致并可控,提高了电机运行的稳定性,有利于拓展USM的工业化应用范围。Ultrasonic motor is a novel kind of special motor.Its operating theory,driving and control methods are quite different from the traditional electromagnetic motor.Because of the difference of material,machining tolerance,temperature raise during the operation,and the variation of load,there is remarkable difference between the amplitude of motor driving voltages.The amplitude difference reduces the motor＇s performance,and also increases the variation of rotating speed.Aim at this problem,the design and realization of voltage closed-loop control in USM motion control system are analyzed.The experimental results proved that,the design is correct.

关 键 词：超声波电机 闭环控制 电压控制 

分 类 号：TM301.2[电气工程—电机] TM35