Search for dissertations about: "drive"

Showing result 21 - 25 of 1022 swedish dissertations containing the word drive.

  2. 21. On Reliability of SiC Power Devices in Power Electronics

    Author : Diane-Perle Sadik; Hans-Peter Nee; Per Ranstad; Nando Kaminski; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon Carbide; Metal-Oxide-Semiconductor Field-Effect Transistor MOSFET ; Junction Field-Effect Transistor JFET ; Bipolar Junction Transistor BJT ; Reliability; Failure Analysis; Reliability Testing; Short- Circuit Currents; Humidity; Resonant converter; Series-resonant converter SLR ; Base drive circuits; Gate drive circuits; Life-Cycle Cost Analysis LCCA ; Kiselkarbid; MOSFETar; JFETar; Bipolär Junction Transistor BJT ; Tillförlitlighet; Robusthet; Felanalys; Tillförlitlighetstestning; Kortslutningsströmmar; Luftfuktighet; Resonansomvandlare; Serie-resonansomvandlare SLR ; Basdrivkretsar; Gate-drivkretsar; Felskydd; Livscykelkostnadsanalys; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Silicon Carbide (SiC) is a wide-bandgap (WBG) semiconductor materialwhich has several advantages such as higher maximum electric field, lowerON-state resistance, higher switching speeds, and higher maximum allowablejunction operation temperature compared to Silicon (Si). In the 1.2 kV - 1. READ MORE

  4. 22. Distributed Control of Electric Drive Systems via Ethernet

    Author : Lilantha Samaranayake; Chandur Sadarangani; Alexander Medvedev; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; adaptive sampling scheme; control delay; delay compensation; distributed control systems; Ethernet; Ethernet ready sensor actuator module; sampling period; Electrical engineering; Elektroteknik;

    Abstract : This thesis is on adapting standard Switched Ethernet for distributed control applications in electric drive systems. The critical issue of Ethernet here is to provide services to real-time applications. READ MORE

  5. 23. Innovation through digitalization: How Sociotechnical Tensions Drive Innovation

    Author : Min Tian; Handelshögskolan i Stockholm; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Abstract : In the digital age, many firms seek to innovate through digitalization. Scholars of information systems (IS) have drawn upon the theoretical insights of the sociotechnical interrelations that accompany digitalization to analyze digital innovation. READ MORE

  6. 24. Towards Low-Voltage, High-Current : A pioneering drive concept for battery electric vehicles

    Author : Stefan Haller; Kent Bertilsson; Bengt Oelmann; Peng Cheng; Dieter Gerling; Mittuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low voltage; high current; EV; BEV; electrical machine; power electronics; MOSFET;

    Abstract : The first electric low-voltage vehicles were constructed in the mid-19th century, but by the early 20th century they were progressively replacedby successors with internal combustion engines. As the consequences ofusing fossil fuels are better understood, our society is now transitioning back. READ MORE

  7. 25. Integrated energy transducer drive for hybrid electric vehicles

    Author : Thomas Bäckström; KTH; []
    Keywords : ;

    Abstract : .... READ MORE