Sökning: "speed estimation"
Visar resultat 1 - 5 av 177 avhandlingar innehållade orden speed estimation.
1. Induction Machine Speed Estimation - Observations on Observers
Sammanfattning : This work focuses on observers estimating flux linkage and speed for induction machines, mainly in the low speed region. With speed estimation, sensorless control is possible, meaning that the speed of induction machines without mechanical speed sensors can be controlled. LÄS MER
2. Frequency Tracking for Speed Estimation
Sammanfattning : Estimating the frequency of a periodic signal, or tracking the time-varying frequency of an almost periodic signal, is an important problem that is well studied in literature. This thesis focuses on two subproblems where contributions can be made to the existing theory: frequency tracking methods and measurements containing outliers. LÄS MER
3. Tire Modeling and Friction Estimation
Sammanfattning : New system technologies are continuously improving the performance of vehicles regarding comfort, stability, environmental stresses, and safety. Novel sensors are developed and used together with advanced control algorithms and faster and more accurate actuators to help the driver to maneuver the vehicle in a safer way. LÄS MER
4. Online State Estimation in Electrified Vehicles Linked to Vehicle Dynamics
Sammanfattning : Electric vehicles have the potential to significantly reduce energy consumption and emissions for personal and commercial road transport and number of electric vehicles is likely to increase in the future due to stricter emission legislations. In order to accelerate market penetration, the competiveness of electric vehicles should increase in comparison to conventional vehicles. LÄS MER
5. On the modelling and partial-load control of variable-speed wind turbines
Sammanfattning : .... LÄS MER