微特电机
微特電機
미특전궤
SMALL & SPECIAL ELECTRICAL MACHINES
2010年
1期
4-8
,共5页
超声波电动机系统%建模%平均值模型
超聲波電動機繫統%建模%平均值模型
초성파전동궤계통%건모%평균치모형
ultrasonic motor system%modeling%averaged model
利用广义平均值法建立了包含驱动电路的行波超声波电动机系统平均值模型,通过时变基波傅里叶系数反映系统动态特性.基于机电转换原理建立了便于控制优化应用的谐振变换器模型;把解析法应用于逆变和定/转子接触模块,反映了界面接触力的非线性作用.模型仿真结果与实验数据的对比表明,该模型较好地反映了行波超声波电动机系统非线性动态特性的主要方面;而且与瞬时值计算模型相比,模型简化,计算时间显著减少,有利于实时控制应用.
利用廣義平均值法建立瞭包含驅動電路的行波超聲波電動機繫統平均值模型,通過時變基波傅裏葉繫數反映繫統動態特性.基于機電轉換原理建立瞭便于控製優化應用的諧振變換器模型;把解析法應用于逆變和定/轉子接觸模塊,反映瞭界麵接觸力的非線性作用.模型倣真結果與實驗數據的對比錶明,該模型較好地反映瞭行波超聲波電動機繫統非線性動態特性的主要方麵;而且與瞬時值計算模型相比,模型簡化,計算時間顯著減少,有利于實時控製應用.
이용엄의평균치법건립료포함구동전로적행파초성파전동궤계통평균치모형,통과시변기파부리협계수반영계통동태특성.기우궤전전환원리건립료편우공제우화응용적해진변환기모형;파해석법응용우역변화정/전자접촉모괴,반영료계면접촉력적비선성작용.모형방진결과여실험수거적대비표명,해모형교호지반영료행파초성파전동궤계통비선성동태특성적주요방면;이차여순시치계산모형상비,모형간화,계산시간현저감소,유리우실시공제응용.
The averaged model for traveling wave ultrasonic motor system including driving circuit is presented using a generalized averaging method and reflects the dynamic characteristics of system by time-varying fundamental Fourier coefficients.The model of resonant converter was established for optimized control schemes based on the principle of mechanical and electrical conversion.The analytical method was applied for the inverter and stator/rotor contact module, eliminating circuit switching characteristics and reflecting the role of non-linear contact force.Simulation results compared with experimental data,show that the model reflects the main aspects of nonlinear dynamic characteristics,and its simplifcation obviously reduces computing time compared with the instantaneous value model.Then it is conducive to real-time control applications.
