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.
The aim of this paper is to reduce the low-speed limitation of PMSM drives that use low-resolution position sensors. It is recognized, for the first time, that this may be overcome by merging signal-injection-based self-sensing and low-resolution sensor technologies, if the machine possesses a detectable amount of electromagnetic saliency. The supplementary information coming from the injection of...
All-electric vehicles should be made more reliable in such way one can continue driving even after the event of one or more faults in the electrical drive. For this, the use of multiphase (more than 3 phases) electrical machines is considered here due to its redundant feature. An additional technique to increase reliability is to replace sensors by observers. This paper studies the feasibility to...
In this paper, a rotor position estimation based on a low-resolution position sensor is proposed. As vector control of an ac permanent-magnet synchronous machine requires the rotor position with sufficiently high resolution, the low-resolution sensor signal is transformed into a spatially quantized rotating vector and based on this vector, a vector-tracking observer calculates the corresponding high-resolution...
This paper presents a closed loop control technique for harmonic content reduction in the stator current of an induction machine feeded with a three phase inverter, within a velocity control loop. Using a digital filter for Clarke transformation, a robust sliding flux observer, and a closed loop control for the zero sequence of a SVPWM three phase inverter, this work shows how the proposed schema...
Fault tolerance is gaining interest to increase reliability and availability, for example for distributed energy systems. Doubly fed induction generators need rotor position information for high performance control. As part of a multi-sensor fault tolerant generator system, fault tolerance of the position sensor is presented, using a position estimator. A known position estimator is improved and thoroughly...
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.