CAJ | 학술논문

研究了矢量控制异步电机静止时的参数离线辨识方法。该方法采用直流实验辨识电机的定子电阻,采用逆Γ等效电路模型进行转子电阻、定转子漏感以及互感辨识,通过两次不同频率的单相实验辨识电机的等效转子电阻、总漏感以及等效互感,再由一次单相实验的电抗值,采用迭代法提高等效互感的精度,根据逆Γ等效电路参数解出异步电机的转子电阻、定转子漏感及互感。使用该方法可以在静止状态下准确辨识出异步电机矢量控制所需要的电机初始参数,而且辨识原理相对简单、辨识精度高,能够满足高性能矢量控制系统的要求。实验结果证明了该方法准确、有效。
연구료시량공제이보전궤정지시적삼수리선변식방법。해방법채용직류실험변식전궤적정자전조,채용역Γ등효전로모형진행전자전조、정전자루감이급호감변식,통과량차불동빈솔적단상실험변식전궤적등효전자전조、총루감이급등효호감,재유일차단상실험적전항치,채용질대법제고등효호감적정도,근거역Γ등효전로삼수해출이보전궤적전자전조、정전자루감급호감。사용해방법가이재정지상태하준학변식출이보전궤시량공제소수요적전궤초시삼수,이차변식원리상대간단、변식정도고,능구만족고성능시량공제계통적요구。실험결과증명료해방법준학、유효。
An off-line identification method of the induction motor parameters in vector control system with three level inerter power supplies was introduced and described. The proposed method used DC-test to acquire the stator resistance and the other parameters including rotor resistance, leakage inductance and mutual inductance identification were taken with inverse-equivalent induction motor model. First, the equivalent rotor resistance, the leakage inductance and equivalent mutual inductance were identified by two different frequencies single-test. Second, the iterative method was used to improve the accuracy of equivalent mutual inductance. With this method, the induction motor parameters could be got in stand-still condition. This method is simple, accurate and experiment results prove its validity.