Vector Control of Induction Motors Considering Magnetic Saturation

Vector Control of Induction Motors Considering Magnetic Saturation

Description

In this study, a mathematical dynamic model of an induction motor as influenced by magnetic circuit saturation is developed. Moreover, a modified structure of indirect vector controller scheme is proposed which involves the saturated value of the magnetizing inductance. In order to overcome the disadvantages of the vector control drive system such as speed sensor and parameter sensitivity, two proposed control systems have been developed. In the first system, a simultaneous stator resistance and motor speed estimation based on a modified Model Reference Adaptive System (MRAS) has been used to obtain accurate estimation for motor speed taking the effect of magnetic flux saturation into account. Online magnetizing inductance estimation has been presented to consider the effect of saturation in the proposed system. In the second system, an effective online method for rotor resistance estimation based on a modified MRAS to achieve high-precise control in a wide range of motor speed taking the effect of magnetic circuit saturation into account.


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Details

Author(s)
Ahmed Abdel-Hamid Zaki Diab, Ahmed Mohamed El-Sawy, Yehia Sayed Mohamed
Format
Paperback | 152 pages
Dimensions
152 x 229 x 9mm | 231g
Publication date
01 Jul 2012
Publisher
LAP Lambert Academic Publishing
Publication City/Country
Saarbrucken, Germany
Language
English
Edition Statement
Aufl.
Illustrations note
black & white illustrations
ISBN10
3659159999
ISBN13
9783659159992