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.
This paper proposes an active-flux-based motion-sensorless vector-control structure for biaxial excitation generator for automobiles (BEGA) for wide speed-range operation. BEGA is a hybrid-excited synchronous machine having permanent magnets on q-axis and a dc excitation on d-axis. Using the active-flux concept, the estimated rotor position is given by the sum of the active-flux position and torque...
A simple but effective method to observe PMSM rotor position is presented in this paper. A high frequency voltage is injected into the motor and it will cause a little change of current signal because of the anisotropy of the machine. By processing the current in the armature, this method can calculate the rotor position accurately. This paper also presents a new way to observe the original rotor...
This paper provides a simple, robust, and universal position observer for position sensorless control of synchronous machines. The observer is designed using an equivalent EMF model of a synchronous machine or, alternately, using a sliding mode controller based on the equivalent EMF model. The sliding mode observer provides fast convergence and low sensitivity to parameter variations. Experimental...
Permanent magnet synchronous (PMSM) drives become very popular in many industrial applications. Their construction provides better performance and reliability than DC drives. But there is also one significant disadvantage - actual rotor position knowledge is necessary to control the drive even in the case when only speed control is required. A position sensor has to be used increasing the drive cost...
Permanent magnet synchronous (PMSM) drives become very popular in many industrial applications. Their construction provides better performance and reliability than DC drives. But there is also one significant disadvantage - actual rotor position knowledge is necessary to control the drive even in the case when only speed control is required. A position sensor has to be used increasing the drive cost...
This paper discusses a reluctance-dependent back electromotive force (EMF) model for encoderless vector driven permanent magnet synchronous machines (PMSM) compared to well known, non reluctance-dependent back EMF models. Established PMSM could have considerable varieties in direct and quadrature inductances. So it makes sense to consider this behaviour in an extended back EMF model. On closer examination...
Advanced mathematical models are essential for the simulation of the dynamic nonlinear operating behavior of a permanent magnet synchronous machine (PMSM). Usually rotor or stator oriented systems featuring constant parameters are used. Concerning sophisticated control strategies, especially for sensorless control, the dependence of the inductance on angle and load condition can no longer be neglected...
This paper presents a complex solution for whole speed range sensorless control of interior permanent magnet synchronous motor (IPMSM) drives. To cover an entire speed range of IPMSM without position transducer, different sensorless techniques must be employed. Design and implementation of sensorless techniques for different operating speeds are described in this paper. Presented application has been...
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.