Nonintrusive Efficiency Estimation of Induction Motors based on an Adaptive Extended Kalman Filter

被引:0
|
作者
Yu Hongxia [1 ]
Li Chuang [1 ]
机构
[1] Shenyang Univ Technol, Dept Informat Sci & Engn, Shenyang, Peoples R China
关键词
Adaptive extended kalman filter; efficiency estimation; induction motor; nonintrusive;
D O I
10.4028/www.scientific.net/AMM.446-447.698
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this paper, a new nonintrusive efficiency estimation method without using stray loss approximation value was presented, the efficiency of induction motor was computed using estimated value of speed and load torque by AEKF. In AEKF, the speed and load torque as the state of system are estimated, the noise covariance matrices are estimated adaptively while the state of induction motor system are estimated to overcome the defect that estimation results are affected by the selected noise covariance matrices in EKF, then the estimated speed and the load torque are used to achieve noninvasive efficiency estimation. Experimental results demonstrate that the efficiency estimation results of this method has higher accuracy and are not affected by initial value of noises covariance matrices.
引用
收藏
页码:698 / 703
页数:6
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