Search for dissertations about: "permanent magnet synchronous machine PMSM"

Showing result 1 - 5 of 16 swedish dissertations containing the words permanent magnet synchronous machine PMSM.

  1. 1. Design of a fault-tolerant fractional slot PMSM for a vehicle application

    Author : Christian Dubar; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; PMSM; Efficiency; Fault-tolerant; Unbalanced operation; Saturation; Fault-tolerance; Fractional slot; Permanent magnet synchronous machine; PMSM ; Concentrated windings;

    Abstract : In automotive applications, the PMSM is an interesting alternative due to the high efficiency requirement; as only a limited amount of energy can be stored in the relatively expensive battery. Another advantage is the high torque and power density since it is very important to save especially space but also weight in vehicle applications. READ MORE

  2. 2. Control of permanent-magnet synchronous machines in automotive applications

    Author : Oskar Wallmark; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; in-wheel motor; sensorless control; electric vehicle; permanent-magnet synchronous machine; loss minimization; inverter; Electric drive; position estimation; vector control; hybrid electric vehicle; phase-locked loop; fault tolerance;

    Abstract : This thesis deals with the design and analysis of control system structures for electric drives equipped with permanent-magnet synchronous machines (PMSMs) in automotiveapplications.Sensorless control, meaning vector control without a mechanical rotor position sensor, is considered and a speed and position estimator of phase-locked loop type is analyzed thoroughly. READ MORE

  3. 3. Synchronous Machines with High-Frequency Brushless Excitation for Vehicle Applications

    Author : Junfei Tang; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Design; Electrically Excited Synchronous Machines; Brushless Excitation; Machine Modeling; Electric Vehicles; Machine Control;

    Abstract : Abstract Electrically excited synchronous machines (EESM) are becoming an alternative to permanent magnet synchronous machines (PMSM) in electric vehicle (EV) applications. This mainly attributes to the zero usage of rare-earth material as well as the capabilities of high starting torque and good field weakening provided by EESM. READ MORE

  4. 4. Modelling and design of electromechanical actuators for active suspension in rail vehicles

    Author : Peter Kjellqvist; KTH; []
    Keywords : active suspension; electromechanical actuator; permanent magnet synchronous machine; PMSM; rail vehicle; ride comfort;

    Abstract : .... READ MORE

  5. 5. Electric machine control for energy efficient electric drive systems

    Author : Andreas Andersson; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; permanent magnet synchronous machine PMSM ; noise assessment; Energy efficiency; modulation techniques;

    Abstract : Pure electric vehicles and hybrid electric vehicles are of increasing interest in the automotive industry, much due to challenges such as emission level legislations and the environmental impact of the transportation sector. When continuously striving for better performing and more energy efficient electric powertrains, with high drivability and redundancy, there is an ever increasing need for further research and development in the areas of controls, design and system level optimization. READ MORE