CAJ | 학술논문

速度辨识是无速度传感器矢量控制系统中的关键,速度估计的精度将直接决定矢量控制系统的控制效果。设计采用了不存在纯积分的反电动势MRAS方法辨识速度,介绍了矢量控制的基本原理和速度估计方法。首先基于Matlab软件进行了仿真研究,然后在电机实验站的实验电源系统中实现了无速度传感器矢量控制的工程化实践,为了增强系统对自身参数的鲁棒性,电机参数均使用热态参数。仿真和工程化实践结果证明了异步电机基于MRAS的速度估计方法的可行性,矢量控制系统能较好的估计转速,并具有较好的稳定性。
속도변식시무속도전감기시량공제계통중적관건,속도고계적정도장직접결정시량공제계통적공제효과。설계채용료불존재순적분적반전동세MRAS방법변식속도,개소료시량공제적기본원리화속도고계방법。수선기우Matlab연건진행료방진연구,연후재전궤실험참적실험전원계통중실현료무속도전감기시량공제적공정화실천,위료증강계통대자신삼수적로봉성,전궤삼수균사용열태삼수。방진화공정화실천결과증명료이보전궤기우MRAS적속도고계방법적가행성,시량공제계통능교호적고계전속,병구유교호적은정성。
Speed estimator is the key for the speed sensorless vector-controlled induction motor drive system.The precision of speed estimation directly determines the control result of the system.Applied MRAS method based on back electromotive force without pure integral to estimate speed,and introduced the vector control principle and speed estimation method.Firstly,made a simulation research with Matlab.Secondly,realized speed sensorless vector control in the experimental power system of motor testing station and in order to increase system robustness,system parameters used the motor thermal state parameters.The simulation of Matlab and the result of the engineering show that the method has a good speed estimator effect and system stability.