عنوان المقالة: تأثير خطأ معاوقة العضو الدوار على أداء المحرك التاثيرى مقارنة التحكم في عزم الدوران مع التحكم في عددي Effect of the Error of the Rotor Inductance on the Performance of the Induction Motor with Direct Torque Control Compared to Scalar Control
Direct torque control of induction motors has
achieved a quick torque response. It is very sensitive to flux
estimation (magnitude and orientation). The flux estimation is
affected by parameters variation. These parameters are affecting
saturation, temperature, and skin effect. The mismatching
between the parameters value used in the controller and those in
the motor make the actual rotor flux position does not coincide
with the position assumed by the controller. Any parameter
mismatched in flux estimation will be detrimentally affect the
torque response and then on the dynamic performance. So this
paper shows the effect of mismatching in rotor reactance between
the control model and the machine itself on the performance
characteristics of induction motor through applying the direct
torque control. The rotor reactance is chosen due to have more
effect on the instantaneous slip speed. To show this effect, the
mismatching case is compared to matching case and with scalar
control. MATLAB program is used to simulate these cases.
تاريخ النشر
02/10/2016
الناشر
International Journal of Emerging Science and Engineering
د/ حمدى محمد سليمان حجازى | Dr. Hamdy Mohamed Soliman Hegazy | 6152