SPEED-SENSORLESS VECTOR CONTROLLED INDUCTION MOTOR DRIVE TAKING SATURATION INTO ACCOUNT
El-Sawy, A., S. Mohamed, Y., Zaki, A. (2009). SPEED-SENSORLESS VECTOR CONTROLLED INDUCTION MOTOR DRIVE TAKING SATURATION INTO ACCOUNT. EKB Journal Management System, 37(No 5), 1109-1124. doi: 10.21608/jesaun.2009.128170
A. M. El-Sawy; Yehia S. Mohamed; A. A. Zaki. "SPEED-SENSORLESS VECTOR CONTROLLED INDUCTION MOTOR DRIVE TAKING SATURATION INTO ACCOUNT". EKB Journal Management System, 37, No 5, 2009, 1109-1124. doi: 10.21608/jesaun.2009.128170
El-Sawy, A., S. Mohamed, Y., Zaki, A. (2009). 'SPEED-SENSORLESS VECTOR CONTROLLED INDUCTION MOTOR DRIVE TAKING SATURATION INTO ACCOUNT', EKB Journal Management System, 37(No 5), pp. 1109-1124. doi: 10.21608/jesaun.2009.128170
El-Sawy, A., S. Mohamed, Y., Zaki, A. SPEED-SENSORLESS VECTOR CONTROLLED INDUCTION MOTOR DRIVE TAKING SATURATION INTO ACCOUNT. EKB Journal Management System, 2009; 37(No 5): 1109-1124. doi: 10.21608/jesaun.2009.128170

SPEED-SENSORLESS VECTOR CONTROLLED INDUCTION MOTOR DRIVE TAKING SATURATION INTO ACCOUNT

JES. Journal of Engineering Sciences
Article 19, Volume 37, No 5, September and October 2009, Page 1109-1124  XML PDF (748.73 K)
Document Type: Research Paper
DOI: 10.21608/jesaun.2009.128170
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Authors
A. M. El-Sawy1; Yehia S. Mohamed2; A. A. Zaki1
1Electrical Engineering Department, Faculty of Engineering, El-Minia University, EL-Minia, Egypt.
2Electrical Engineering Department, Faculty of Engineering, El-Minia University, EL-Minia, Egypt
Abstract
This paper aims to develop a speed sensorless indirect vector controlled induction motor drive taking the effect of magnetic flux saturation into account. A mathematical dynamic model of an induction motor as influenced by magnetic circuit saturation is presented. Moreover, a modified structure of indirect vector controller scheme is proposed which involves the saturated value of the magnetizing scheme. In this scheme, an effective method for rotor speed estimation is based on a modified model reference adaptive system (MRAS) to achieve high-precise control in a wide range of motor speed. The online magnetizing inductance estimation algorithm is used to modify the value of the magnetizing inductance which is used in the motor speed estimator. Digital simulations have been carried out in order to evaluate the effectiveness of the proposed sensorless drive system. The results have proven excellent steady-state and dynamic performances of the drive system, which confirms the validity of the proposed scheme.
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