The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
An adaptive sliding-mode observer is proposed in this paper to update the rotor resistance in indirect field oriented controlled induction motor drives. Although the observer is implemented in stationary reference frame, the design and theory analysis are made in the rotor-field oriented reference frame. Through coordinate transformation, the essence of the sliding- mode manifold and the theory foundation...
The present work is a contribution to improve efficiency and the robustness of a indirect field oriented of induction motor drives. The efficiency of the motor deteriorates for two reasons: The variation of rotor resistance and operation under light loads, with a constant field. For these reasons, a method is proposed to choose the optimal field to minimize total machine losses. On the other hand,...
It is difficult to develop an accurate mathematical model for the induction motor and the robustness of vector control system is poor. This paper firstly uses the linear active disturbance rejection controller (LADRC) in inductor motor drive system. The controller is not overly dependent on the accurate mathematical model of motor, so the system is inherently robust, and it can estimate and compensate...
This paper demonstrates the improved speed tracking performance of fuzzy based indirect field oriented control of induction motor drives in comparison to a conventional PI control in hybrid electric vehicle (HEV) application. Both types of controllers are subjected to changes in loading conditions and rotor resistance which is expected to vary with the high temperature of HEV drive environment. Results...
Induction motors are widely used in industry due to the fact that they are relatively cheap, rugged and maintenance free. As a consequence, much attention has been given to the motor torque and speed control. The control schemes available today require information regarding speed of the motor, which can either be obtained by using speed sensors or without speed sensors. Speed sensors have several...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.