Search for dissertations about: "electric vehicles"

Showing result 21 - 25 of 312 swedish dissertations containing the words electric vehicles.

2. 21. On Control of Permanent-Magnet Synchronous Motors in Hybrid-Electric Vehicle Applications

   Author : Oskar Wallmark; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; phase-locked loop; signal injection; Electric drive; sensorless control; harmonics; position estimation; speed estimation; hybrid-electric vehicle; permanent-magnet synchronous motor; electric vehicle; vector control;

   Abstract : This thesis deals with design and analysis of the control system structure for electric drives equipped with permanent-magnet synchronous motors with a salient rotor. The intended application is propulsion in electric- and hybrid-electric vehicles. READ MORE

4. 22. Circular Business Models for Electric Vehicle Battery Second Life : Challenges, enablers, and preconditions from an ecosystem perspective

   Author : Reza Toorajipour; Koteshwar Chirumalla; Fredrik Wallin; Vinit Parida; Patricia Van Loon; Mälardalens universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric vehicle battery second life; circular business models; ecosystem; electric vehicles; EV batteries; circular business model innovation; circular economy; preconditions; second life configurations; battery second life; Innovation and Design; innovation och design;

   Abstract : Sustainability has become a critical issue due to global warming, scarcity of resources, and the high costs of raw materials. It is vital to reconsider linear business models and value creation processes and transition towards circularity. The growth of the electric vehicles market is promising; however, it comes with a major downside. READ MORE

5. 23. From Passive to Active Electric Distribution Networks

   Author : Javier Campillo; Erik Dahlquist; Wu Jianzhong; Mälardalens högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Active distribution networks; smart grids; smart Meters; real-time pricing; demand-side management; electric vehicles; power systems; Energy- and Environmental Engineering; energi- och miljöteknik;

   Abstract : Large penetration of distributed generation from variable renewable energy sources, increased consumption flexibility on the demand side and the electrification of transportation pose great challenges to existing and future electric distribution networks. This thesis studies the roles of several actors involved in electric distribution systems through electricity consumption data analysis and simulation models. READ MORE

6. 24. FEM Analysis Applied to Electric Machines for Electric Vehicles

   Author : Juan de Santiago Ochoa; Hans Bernhoff; Marcos Lafoz Pastor; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; Elektroteknik; Vehicle engineering; Farkostteknik;

   Abstract : Electric vehicle technology is an interdisciplinary field in continuous development. It appears to be a margin for improvements. The Division for Electricity at Uppsala University is doing significant research in the field. The present thesis investigates electric machines for vehicular applications, both in the driveline and in the traction motor. READ MORE

7. 25. Analysis and Control Aspects of a PMSynRel Drive in a Hybrid Electric Vehicle Application

   Author : Shuang Zhao; Chandur Sadarangani; Zi-Qiang Zhu; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Active damping control; electric drive; electric vehicle; hybrid electric vehicle; integrated charger; permanent-magnet assisted synchronous reluctance machine; position estimation; sensorless control;

   Abstract : This thesis deals withmodeling and control of an electric drive equipped with a permanentmagnet assisted synchronous reluctance (PMSynRel) machine for a plug-in hybrid electric vehicle application.In the first part of the thesis, a special use of the PMSynRel machine in consideration, known as an integrated charger concept, is investigated. READ MORE