CAJ | 학술논문

在分析感应电机异步电机无速度传感器控制方法的基础上,讨论了基于模型的速度辨识方法.该速度辨识方案使用常规电流误差和新的伸缩算子来避免已知的不稳定区域,并且获得常数增益.此外还通过寄生直流成分的削除方案,以保证极低定子频率的运行,并在Matlab\Simulink环境下搭建了无速度传感器矢量控制系统的仿真模型,仿真结果证实了该方法的有效性.
재분석감응전궤이보전궤무속도전감기공제방법적기출상,토론료기우모형적속도변식방법.해속도변식방안사용상규전류오차화신적신축산자래피면이지적불은정구역,병차획득상수증익.차외환통과기생직류성분적삭제방안,이보증겁저정자빈솔적운행,병재Matlab\Simulink배경하탑건료무속도전감기시량공제계통적방진모형,방진결과증실료해방법적유효성.
Based on the analysis of sensorless control methods of induction motors, this paper discusses the methods of speed identifi-cation based on model. This speed identification scheme uses the conventional current difference and a new stretch-twist operator to avoid the known instability region and to obtain a constant gain additionally. Furthermore a parasitic dc-component elimination is used to ensure operation with very low stator frequencies. Characteristics are explained and verified by measurements. The simulation models of sensorless vector control are built in the environment of Matlab/Simulink. and simulation results confirm the validity of this method.